7Baggers

LSB Industries, Inc
(NYSE:LXU) 

LXU stock logo

LSB Industries, Inc. manufactures, markets, and sells chemical products in the United States. It provides nitrogen-based fertilizers, such as ammonia, fertilizer grade ammonium nitrate (HDAN), and urea ammonia nitrate for fertilizer and fertilizer blends for corn and other crops, and NPK fertilizer ...

Founded: 1987
Full Time Employees: 593
Sector: Basic Materials
Industry: Chemicals

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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-18 2007-09-30 2007-06-30 2007-03-31 2006-06-30 2006-03-31 2005-12-31 
                                                                                 
      net sales
    169,487,000 165,049,000 155,431,000 151,296,000 143,432,000 134,906,000 109,217,000 140,073,000 138,204,000 132,613,000 114,287,000 165,845,000 180,964,000 233,654,000 184,273,000 284,803,000 198,981,000 190,228,000 127,199,000 140,696,000 98,116,000 88,903,000 73,969,000 105,033,000 83,411,000 73,896,000 75,495,000 121,527,000 94,152,000 94,730,000 79,781,000 103,199,000 100,450,000 88,917,000 92,390,000 122,853,000 123,344,000 85,369,000 80,262,000 109,982,000 165,599,000 177,579,000 157,685,000 376,517,000 193,858,000 181,277,000 551,233,000 380,187,000 178,525,000 149,035,000 530,252,000 352,902,000 150,679,000 177,137,000 581,894,000 399,520,000 190,245,000 215,364,000 589,892,000 413,112,000            451,754,000   244,017,000 111,744,000  
      yoy
    18.17% 22.34% 42.31% 8.01% 3.78% 1.73% -4.44% -15.54% -23.63% -43.24% -37.98% -41.77% -9.05% 22.83% 44.87% 102.42% 102.80% 113.97% 71.96% 33.95% 17.63% 20.31% -2.02% -13.57% -11.41% -21.99% -5.37% 17.76% -6.27% 6.54% -13.65% -16.00% -18.56% 4.16% 15.11% 11.70% -25.52% -51.93% -49.10% -70.79% -14.58% -2.04% -71.39% -0.97% 8.59% 21.63% 3.96% 7.73% 18.48% -15.86% -8.87% -11.67% -20.80% -17.75% -1.36% -3.29%                304.28%      
      qoq
    2.69% 6.19% 2.73% 5.48% 6.32% 23.52% -22.03% 1.35% 4.22% 16.04% -31.09% -8.35% -22.55% 26.80% -35.30% 43.13% 4.60% 49.55% -9.59% 43.40% 10.36% 20.19% -29.58% 25.92% 12.88% -2.12% -37.88% 29.08% -0.61% 18.74% -22.69% 2.74% 12.97% -3.76% -24.80% -0.40% 44.48% 6.36% -27.02% -33.59% -6.75% 12.62% -58.12% 94.22% 6.94% -67.11% 44.99% 112.96% 19.79% -71.89% 50.25% 134.21% -14.94% -69.56% 45.65% 110.00% -11.66% -63.49% 42.79%                118.37%   
      cost of sales
    133,693,000 123,847,000 129,888,000 128,123,000 129,048,000 128,857,000 117,162,000 112,658,000 115,926,000 120,604,000 117,673,000 129,813,000 139,359,000 141,070,000 162,144,000 141,879,000 108,251,000 111,764,000 109,752,000 105,688,000 90,056,000 92,368,000 75,028,000 86,012,000 80,860,000 86,173,000 85,228,000 101,850,000 86,834,000 82,319,000 89,523,000 100,126,000 90,357,000 99,121,000 99,675,000 111,513,000 111,729,000 94,261,000 116,641,000 107,853,000 150,590,000 164,391,000 144,406,000 299,276,000 151,499,000 149,899,000 429,256,000 282,596,000 129,803,000 118,469,000 417,262,000 288,821,000 125,257,000 136,767,000 438,528,000 289,341,000 145,801,000 152,543,000 429,695,000 287,172,000            349,873,000   199,507,000 92,197,000  
      gross profit
    35,794,000 41,202,000 25,543,000 23,173,000 14,384,000 6,049,000 -7,945,000 27,415,000 22,278,000 12,009,000 -3,386,000 36,032,000 41,605,000 92,584,000 22,129,000 142,924,000 90,730,000 78,464,000 17,447,000 35,008,000 8,060,000 -3,465,000 -1,059,000 19,021,000 2,551,000 -12,277,000 -9,733,000 19,677,000 7,318,000 12,411,000 -9,742,000 3,073,000 10,093,000 -10,204,000 -7,285,000 11,340,000 11,615,000 -8,892,000 -36,379,000 2,129,000 15,009,000 13,188,000 13,279,000 77,241,000 42,359,000 31,378,000 121,977,000 97,591,000 48,722,000 30,566,000 112,990,000 64,081,000 25,422,000 40,370,000 143,366,000 110,179,000 44,444,000 62,821,000 160,197,000 125,940,000            101,881,000   44,510,000 19,547,000  
      yoy
    148.85% 581.14% -421.50% -15.47% -35.43% -49.63% 134.64% -23.91% -46.45% -87.03% -115.30% -74.79% -54.14% 18.00% 26.84% 308.26% 1025.68% -2364.47% -1747.50% 84.05% 215.95% -71.78% -89.12% -3.33% -65.14% -198.92% -0.09% 540.32% -27.49% -221.63% 33.73% -72.90% -13.10% 14.75% -79.97% 432.64% -22.61% -167.42% -373.96% -97.24% -64.57% -57.97% -89.11% -20.85% -13.06% 2.66% 7.95% 52.29% 91.65% -24.29% -21.19% -41.84% -42.80% -35.74% -10.51% -12.51%                421.21%      
      qoq
    -13.13% 61.30% 10.23% 61.10% 137.79% -176.14% -128.98% 23.06% 85.51% -454.67% -109.40% -13.40% -55.06% 318.38% -84.52% 57.53% 15.63% 349.73% -50.16% 334.34% -332.61% 227.20% -105.57% 645.63% -120.78% 26.14% -149.46% 168.88% -41.04% -227.40% -417.02% -69.55% -198.91% 40.07% -164.24% -2.37% -230.62% -75.56% -1808.74% -85.82% 13.81% -0.69% -82.81% 82.35% 35.00% -74.28% 24.99% 100.30% 59.40% -72.95% 76.32% 152.07% -37.03% -71.84% 30.12% 147.91% -29.25% -60.79% 27.20%                127.71%   
      gross margin %
    21.12% 24.96% 16.43% 15.32% 10.03% 4.48% -7.27% 19.57% 16.12% 9.06% -2.96% 21.73% 22.99% 39.62% 12.01% 50.18% 45.60% 41.25% 13.72% 24.88% 8.21% -3.90% -1.43% 18.11% 3.06% -16.61% -12.89% 16.19% 7.77% 13.10% -12.21% 2.98% 10.05% -11.48% -7.89% 9.23% 9.42% -10.42% -45.33% 1.94% 9.06% 7.43% 8.42% 20.51% 21.85% 17.31% 22.13% 25.67% 27.29% 20.51% 21.31% 18.16% 16.87% 22.79% 24.64% 27.58% 23.36% 29.17% 27.16% 30.49% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 22.55% NaN% NaN% 18.24% 17.49%  
      selling, general and administrative expense
    13,825,000 11,177,000 10,333,000 9,844,000 10,153,000 9,884,000 10,042,000 11,547,000 10,294,000 8,765,000 8,512,000 9,436,000 9,867,000 9,717,000 9,138,000 9,638,000 10,935,000 9,090,000 11,600,000 8,545,000 8,793,000 6,506,000 7,068,000 8,504,000 10,006,000 9,467,000 9,115,000 8,366,000 7,224,000 15,031,000 9,080,000 8,397,000 8,303,000 8,238,000 7,975,000 8,232,000 10,545,000 8,438,000 9,962,000 10,874,000 26,862,000 22,690,000 29,382,000 60,216,000 28,191,000 26,522,000 77,364,000 52,156,000 27,658,000 25,989,000 74,685,000 49,616,000 24,491,000 24,000,000 65,988,000 44,277,000 21,391,000 21,606,000 64,737,000 43,102,000            55,821,000   29,575,000   
      other income
    -1,187,000                -176,000    -263,000   -167,000        545,000 -94,000    -1,251,000 -5,000 -409,000 138,000  -273,000 -725,000 -271,000 -77,000 -298,000 1,418,000 1,113,000 509,000 -1,356,000 4,707,000 3,756,000 2,030,000 1,012,000 1,106,000 722,000 167,000 1,291,000 2,532,000 2,383,000            853,000   691,000 -47,000  
      operating income
    23,156,000 26,684,000 15,629,000 10,493,000 4,468,000 -6,745,000 -24,423,000 14,403,000 11,260,000 3,245,000 -9,499,000 27,496,000 30,535,000 82,683,000 13,066,000 132,658,000 79,971,000 69,688,000 5,373,000 26,457,000 -470,000 -10,230,000 -9,002,000 10,684,000 -6,987,000 -31,276,000 -19,231,000 11,345,000 71,000 -2,483,000 -16,557,000 -5,869,000 1,884,000 -20,751,000 -15,363,000 -298,000 2,321,000 -18,099,000 -45,932,000 -8,883,000 -12,243,000 -12,648,000 -54,887,000 16,783,000 14,223,000 4,934,000 48,428,000 49,625,000 25,861,000 70,177,000 35,131,000 11,988,000 -237,000 18,361,000 77,294,000 65,405,000 23,082,000 41,640,000 94,803,000 82,311,000            47,773,000   14,392,000 5,346,000  
      yoy
    418.26% -495.61% -163.99% -27.15% -60.32% -307.86% 157.11% -47.62% -63.12% -96.08% -172.70% -79.27% -61.82% 18.65% 143.18% 401.41% -17115.11% -781.21% -159.69% 147.63% -93.27% -67.29% -53.19% -5.83% -9940.85% 1159.61% 16.15% -293.30% -96.23% -88.03% 7.77% 1869.46% -18.83% 14.65% -66.55% -96.65% -118.96% 43.10% -16.32% -152.93% -186.08% -356.34% -213.34% -66.18% -45.00% -92.97% 37.85% 313.96% -11011.81% 282.21% -54.55% -81.67% -101.03% -55.91% -18.47% -20.54%                793.62%      
      qoq
    -13.22% 70.73% 48.95% 134.85% -166.24% -72.38% -269.57% 27.91% 247.00% -134.16% -134.55% -9.95% -63.07% 532.81% -90.15% 65.88% 14.76% 1197.00% -79.69% -5729.15% -95.41% 13.64% -184.26% -252.91% -77.66% 62.63% -269.51% 15878.87% -102.86% -85.00% 182.11% -411.52% -109.08% 35.07% 5055.37% -112.84% -112.82% -60.60% 417.08% -27.44% -3.20% -76.96% -427.04% 18.00% 188.27% -89.81% -2.41% 91.89% -63.15% 99.76% 193.05% -5158.23% -101.29% -76.25% 18.18% 183.36% -44.57% -56.08% 15.18%                169.21%   
      operating margin %
    13.66% 16.17% 10.06% 6.94% 3.12% -5.00% -22.36% 10.28% 8.15% 2.45% -8.31% 16.58% 16.87% 35.39% 7.09% 46.58% 40.19% 36.63% 4.22% 18.80% -0.48% -11.51% -12.17% 10.17% -8.38% -42.32% -25.47% 9.34% 0.08% -2.62% -20.75% -5.69% 1.88% -23.34% -16.63% -0.24% 1.88% -21.20% -57.23% -8.08% -7.39% -7.12% -34.81% 4.46% 7.34% 2.72% 8.79% 13.05% 14.49% 47.09% 6.63% 3.40% -0.16% 10.37% 13.28% 16.37% 12.13% 19.33% 16.07% 19.92% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 10.58% NaN% NaN% 5.90% 4.78%  
      interest expense
    7,117,000 7,344,000 7,363,000 7,886,000 8,064,000 8,223,000 8,115,000 8,385,000 9,729,000 9,923,000 7,165,000 11,836,000 12,212,000 12,372,000 12,193,000 12,307,000 9,955,000 11,760,000 12,956,000 12,290,000 12,372,000 12,606,000 12,554,000 12,476,000 13,479,000 12,080,000 12,007,000 11,315,000 10,987,000 11,056,000 11,009,000 11,693,000 9,306,000 9,326,000 9,291,000 9,292,000 9,358,000 9,816,000 13,333,000 6,446,000 1,350,000 876,000 877,000 5,628,000 3,398,000 4,141,000 17,458,000 12,379,000 6,708,000 7,324,000 6,662,000 1,267,000 731,000 437,000 3,800,000 2,311,000 1,132,000 1,177,000 5,481,000 3,580,000            8,062,000   5,761,000 2,875,000  
      non-operating other income
    -1,516,000 -1,150,000 -1,385,000 -1,542,000 -1,673,000 -2,285,750 -2,674,000 -2,908,000 -3,561,000 -2,732,250 -3,689,000 -3,764,000            -128,000    -868,000    -331,000     231,000 109,250 2,451,000 -3,970,000  231,000 -23,000 -84,000 -35,000 -39,000 -242,000 -153,000 -77,000 -90,000 -10,000 24,000 16,000 -11,000 -270,000 -272,000 -5,000 -750 -3,000 -5,000            -605,000   -497,000 -30,000  
      income before income taxes
    17,555,000 2,954,500 9,651,000 4,090,000 -1,923,000                                                                         
      benefit for income taxes
    -2,130,000                   -248,000  -752,000 -1,370,000 -1,299,000        4,324,000 -922,000 -30,018,000 -6,698,000 -2,761,000 -1,282,000 -7,686,750 -22,226,000 -3,671,000  -4,460,500 -21,982,000      7,654,000    -745,000                         
      net income
    19,685,000 16,132,000 7,115,000 3,006,000 -1,640,000 -9,149,000 -25,382,000 9,555,000 5,623,000 -5,347,000 -7,726,000 25,095,000 15,901,000 65,870,000 2,312,000 103,399,000 58,766,000 42,082,000 -8,928,000 23,670,000 -13,279,000 -21,692,000 -20,402,000 -365,000 -19,452,000 -27,714,000 -30,794,000 6,631,000 -11,540,000 -13,045,000 -26,084,000 -27,506,000 -5,591,000 914,000 -17,112,000 -7,033,000 -5,986,000 -21,533,000 133,551,000 15,091,000 -14,941,000 -8,068,000 -33,763,000 7,066,000 6,649,000 657,000 18,977,000 22,754,000 11,641,000 37,343,000 17,619,000 7,359,000 -68,000 11,560,000 47,044,000 40,336,000 14,303,000 27,988,000 55,854,000 49,548,000            42,335,000   9,202,000 2,556,000  
      yoy
    -1300.30% -276.33% -128.03% -68.54% -129.17% 71.11% 228.53% -61.92% -64.64% -108.12% -434.17% -75.73% -72.94% 56.53% -125.90% 336.84% -542.55% -294.00% -56.24% -6584.93% -31.73% -21.73% -33.75% -105.50% 68.56% 112.45% 18.06% -124.11% 106.40% -1527.24% 52.43% 291.10% -6.60% -104.24% -112.81% -146.60% -59.94% 166.89% -495.55% 113.57% -324.71% -1328.01% -277.92% -68.95% -42.88% -98.24% 7.71% 209.20% -17219.12% 223.04% -62.55% -81.76% -100.48% -58.70% -15.77% -18.59%                1556.30%      
      qoq
    22.02% 126.73% 136.69% -283.29% -82.07% -63.95% -365.64% 69.93% -205.16% -30.79% -130.79% 57.82% -75.86% 2749.05% -97.76% 75.95% 39.65% -571.35% -137.72% -278.25% -38.78% 6.32% 5489.59% -98.12% -29.81% -10.00% -564.39% -157.46% -11.54% -49.99% -5.17% 391.97% -711.71% -105.34% 143.31% 17.49% -72.20% -116.12% 784.97% -201.00% 85.19% -76.10% -577.82% 6.27% 912.02% -96.54% -16.60% 95.46% -68.83% 111.95% 139.42% -10922.06% -100.59% -75.43% 16.63% 182.01% -48.90% -49.89% 12.73%                260.02%   
      net income margin %
    11.61% 9.77% 4.58% 1.99% -1.14% -6.78% -23.24% 6.82% 4.07% -4.03% -6.76% 15.13% 8.79% 28.19% 1.25% 36.31% 29.53% 22.12% -7.02% 16.82% -13.53% -24.40% -27.58% -0.35% -23.32% -37.50% -40.79% 5.46% -12.26% -13.77% -32.69% -26.65% -5.57% 1.03% -18.52% -5.72% -4.85% -25.22% 166.39% 13.72% -9.02% -4.54% -21.41% 1.88% 3.43% 0.36% 3.44% 5.98% 6.52% 25.06% 3.32% 2.09% -0.05% 6.53% 8.08% 10.10% 7.52% 13.00% 9.47% 11.99% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 9.37% NaN% NaN% 3.77% 2.29%  
      net income per common share:
                                                                                 
      basic:
                                                                                 
      diluted:
                                                                                 
      other expense
     3,341,000 -419,000 2,836,000 -237,000 2,910,000 6,436,000 1,465,000 724,000 -1,000 -2,399,000 -900,000 1,203,000 184,000 -75,000 628,000  -314,000 474,000 6,000  259,000 875,000  -468,000 9,532,000 383,000 -34,000 23,000 -137,000 -2,265,000   2,309,000 103,000 3,406,000     390,000                                   106,000  
      loss on extinguishment of debt
     14,750  59,000      -2,161,000  -8,644,000  28,250                  5,951,000                  324,000 1,296,000                           
      provision for income taxes
     4,599,000 2,536,000 1,084,000 -283,000 -4,055,000 -4,482,000 1,250,000 603,000 2,351,000 -5,249,000 2,973,000 5,898,000 6,897,000 780,000 20,382,000 11,115,000 -46,750 19,000  42,000    -339,000 -15,108,000 -483,000 -5,733,000 400,000 764,000 -2,426,000          -610,000                                   50,000  
      (gain) on extinguishment of debt
                                                                                 
      income per common share:
                                                                                 
      gain on extinguishment of debt
         -753,250  -1,879,000 -1,134,000         -2,500,000  -10,000,000                                                          
      income before provision for income taxes
         -13,204,000 -29,864,000 10,805,000 6,226,000 -2,996,000 -12,975,000 28,068,000 21,799,000 49,188,500 3,092,000 123,781,000 69,881,000 319,000 -8,909,000  -13,237,000    -19,791,000 -10,379,750 -31,277,000 898,000 -11,140,000 -14,551,250 -28,510,000                                               
      non-operating other expense
                -3,476,000 -2,456,000 -2,219,000 -3,430,000 135,000 -44,000 1,326,000 745,000 395,000 597,000 216,000  -675,000 -151,250 39,000  224,000 -1,258,000 944,000  -909,000 103,000 -844,000 204,000     1,956,000                                     
      dividends on convertible preferred stocks
                     73,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000 75,000                                     
      dividends on series e redeemable preferred stock
                      10,190,000 10,213,000 9,511,000 9,297,000 8,889,000 8,689,000 8,307,000 8,120,000 7,764,000 7,589,000 7,256,000 7,092,000 6,782,000 6,628,000 6,338,000 6,195,000 5,923,000 5,789,000 5,536,000                                         
      accretion of series e redeemable preferred stock
                      499,000 513,000 511,000 509,000 508,000 505,000 504,000 502,000 500,000 497,000 496,000 493,000 481,000 802,000 1,599,000 1,635,000 1,635,000 1,618,000 1,599,000 1,636,000 12,137,000 2,241,000 2,243,000                                     
      deemed dividend on series e and series f redeemable preferred stocks
                      231,812,000                                                           
      net income attributable to common stockholders
                 65,870,000 2,312,000 103,399,000 58,766,000   12,646,000            -35,011,000  -6,991,000 -24,745,000 -14,515,000 -13,196,000 -28,027,000 112,047,000 5,055,000 -24,609,000                                     
      net income attributable to participating securities
                       223,000                  -627,000 1,920,000 91,000                                      
      net loss attributable to common stockholders
                     42,009,000 -251,504,000  -23,376,000 -31,573,000 -29,874,000 -9,634,000 -28,338,000 -36,411,000 -39,133,000 -1,530,000 -19,367,000 -20,509,000 -33,422,000  -13,603,000                                             
      basic and dilutive net loss per common share
                     -1,735 -6,390  -820 -602.5 -1,060 -340 -1,010 -535 -1,390                                                   
      income before benefit for income taxes
                       23,422,000    -1,664,000        -23,182,000                                              
      loss before benefit for income taxes
                         -10,806,750 -21,772,000          -6,513,000                                             
      basic and dilutive net loss per common share:
                               -50 -690 -745 -1,220  -490                                             
      basic and dilutive net income per common share:
                                   -1,270                                              
      loss from continuing operations before benefit for income taxes
                                     -30,180,000 -23,810,000 -9,794,000                                          
      loss from continuing operations
                                     -162,000 -17,112,000 -7,033,000                                          
      income from discontinued operations, net of taxes
                                         3,657,000 173,041,000                                       
      income from discontinued operations, including taxes
                                           22,779,000                                      
      income from continuing operations before benefit for income taxes
                                        -7,268,000 -23,422,500 -61,716,000 -11,359,000                                      
      income from continuing operations
                                        -5,986,000 -25,190,000 -39,490,000 -7,688,000 -14,939,000 -8,047,000 -33,759,000 7,099,000 6,679,000 718,000 19,005,000 22,777,000 11,643,000 37,473,000 17,668,000 7,418,000 -68,000 11,622,000 47,164,000 40,454,000 14,324,000 28,002,000 55,982,000 49,658,000            41,987,000   9,333,000 2,656,000  
      loss per common share:
                                                                                 
      basic and diluted:
                                                                                 
      impairment of natural gas properties
                                             9,917,500 39,670,000                                   
      dividend on series e redeemable preferred stock
                                         5,587,750 7,372,000 7,629,000 7,350,000                                     
      income from continuing operations before provision for income taxes
                                            -15,549,000                                     
      net loss from discontinued operations
                                            2,000                                   100,000  
      benefit from (recovery of) losses on accounts receivable
                                             88,000 -161,000 513,000 22,000    -159,000                             
      property insurance recoveries in excess of losses incurred
                                                  -5,147,000 -5,147,000 -5,147,000                             
      income from continuing operations before benefit for income taxes and equity in earnings of affiliate
                                             -11,125,500 -55,741,000      19,230,000    -984,000                         
      equity in earnings of affiliate
                                                  -79,000 -79,000 -67,000 16,000 -452,000 -343,000 -171,000 -171,000 -510,000  -171,000 -168,000 -375,000             -654,000   -405,000 -205,000  
      net income from discontinued operations
                                             21,000 4,000 33,000 30,000   23,000 2,000 179,010 -10 59,000  62,000 120,000 118,000 21,000 14,000 128,000 110,000            20   131,000   
      dividends on preferred stocks
                                             75,000  300,000 300,000  300,000 300,000 300,000  300,000 300,000 300,000  300,000 300,000 300,000  305,000 305,000                  
      net income applicable to common stock
                                             -6,749,250 -33,763,000 6,766,000 6,349,000 657,000 18,677,000 22,454,000 11,341,000 37,343,000 17,319,000 7,059,000 -368,000 11,560,000 46,744,000 40,036,000 14,003,000 27,988,000 55,549,000 49,243,000            36,727,000   8,098,000 2,004,000  
      weighted-average common shares:
                                                                                 
      basic
                                              22,799,000 22,711,000 22,675,000  22,558,000 22,539,000 22,533,000  22,447,000 22,431,000 22,424,000  22,346,000 22,332,000 22,324,000  21,851,000 21,657,000            19,150,000   13,769,000 13,762,000  
      diluted
                                              22,799,000 23,412,000 23,047,000  23,662,000 23,650,000 23,640,000  23,587,000 22,915,000 22,424,000  23,528,000 23,516,000 23,524,000  23,499,000 23,485,000            22,990,000   20,914,000 18,220,000  
      income per common share:
                                                                                 
      basic
                                             -297.5 -1,480 300 280   1,000 500   310 -20   1,790 630   2,270                  
      diluted
                                             -297.5 -1,480 290 280   960 490   310 -20   1,720 610   2,120                  
      income from continuing operations before provisions (benefit) for income taxes and equity in earnings of affiliate
                                               11,239,000  7,803,000 31,212,000                               
      provisions (benefit) for income taxes
                                               4,140,000  3,071,500 12,286,000                               
      income from continuing operations before provisions for income taxes and equity in earnings of affiliate
                                                10,860,000   37,399,000  62,943,000 27,183,000 10,697,000     21,955,000 40,460,000 89,189,000                   
      provisions for income taxes
                                                4,181,000   14,701,000  25,454,000 9,967,000 3,622,000  6,484,000 27,110,000 23,253,000 7,802,000 12,626,000 33,582,000 29,149,000                  
      provisions for (recovery of) losses on accounts receivable
                                                 220,000 -86,000 -156,000                              
      net income (income) from discontinued operations
                                                 7,000 28,000   12,250 49,000                     -348,000      
      income per common share:
                                                                                 
      basic
                                             -297.5 -1,480 300 280   1,000 500   310 -20   1,790 630   2,270                  
      net income from discontinued operations
                                             21,000 4,000 33,000 30,000   23,000 2,000 179,010 -10 59,000  62,000 120,000 118,000 21,000 14,000 128,000 110,000            20   131,000   
      diluted
                                                                                 
      provisions for (recoveries of) losses on accounts receivable
                                                     45,500 182,000   -46,250 -185,000                       
      provisions for losses on accounts receivable
                                                       266,000 100,000   123,000 40,000               874,000      
      losses on extinguishment of debt
                                                             34,000 136,000 136,000                  
      income from continuing operations before provisions for income taxes and equity in earnings and losses of affiliate
                                                         18,441,000 73,764,000 63,366,000    78,600,000                  
      equity in losses (earnings) of affiliate
                                                           -341,000    -207,000                  
      benefit from (recoveries of) losses on accounts receivable
                                                             40,000 160,000 121,000                  
      income from continuing operations before provisions (benefits) for income taxes and equity in earnings of affiliate
                                                                           40,316,000      
      provisions (benefits) for income taxes
                                                                           -1,017,000      
      dividend requirements and stock dividends on preferred stock exchanged in march 2007
                                                                           4,971,000      
      other preferred stock dividends and dividend requirements
                                                                           637,000      
      income from continuing operations before benefit from income taxes and equity in earnings of affiliate
                                                                              9,128,000   
      benefit from income taxes
                                                                              200,000   
      preferred stock dividend requirements
                                                                              -1,104,000 552,000  
      selling, general and administrative
                                                                               14,142,000  
      income from continuing operations before provision for income taxes and equity in earnings of affiliate
                                                                               2,501,000  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2014-12-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2008-09-30 2008-06-18 2007-09-30 2007-06-30 2007-03-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 
                                                                 
        assets
                                                                 
        current assets:
                                                                 
        cash and cash equivalents
      20,641,000 19,511,000 27,951,000 5,614,000 15,030,000 20,230,000 42,283,000 216,257,000 125,991,000 98,500,000 46,824,000 45,072,000 48,949,000 63,769,000 19,635,000 125,231,000 254,299,000 82,144,000 32,855,000 17,625,000 14,232,000 16,264,000 42,094,000 56,513,000 37,483,000 22,791,000 66,783,000 57,971,000 21,705,000 26,048,000 42,746,000 28,667,000 33,619,000 53,065,000 67,213,000 60,017,000 76,010,000 4,368,000 39,529,000           35,302,000        10,929,000  
        short-term investments
      161,042,000 128,960,000 124,015,000 119,278,000 148,516,000 163,971,000 157,060,000  139,238,000 207,434,000 270,702,000 268,762,000 376,882,000 330,553,000 365,573,000 325,566,000 89,311,000                                           
        accounts receivable
      52,864,000 57,609,000 47,029,000 51,653,000 52,199,000 39,083,000 44,601,000 42,242,000 54,108,000 40,749,000 47,303,000 51,431,000 60,251,000 75,494,000 107,847,000 97,406,000 97,515,000 86,902,000 66,082,000 67,431,000 60,503,000 42,929,000 39,945,000 42,569,000 51,060,000 40,203,000 33,459,000 52,680,000 46,524,000 67,043,000 58,298,000 62,634,000 59,570,000 44,922,000 51,013,000 51,299,000 39,781,000 50,328,000 87,496,000 5,571,000 -7,637,000 2,268,000 -317,000 -13,696,000 -9,796,000 7,935,000 -7,501,000 2,305,000 -215,000 15,000   -20,656,000    -16,478,000 68,209,000 52,000 
        allowance for doubtful accounts
      -363,000 -401,000 -384,000 -364,000 -328,000 -323,000 -326,000 -327,000 -366,000 -364,000 -691,000 -692,000 -693,000 -699,000 -620,000 -652,000 -463,000 -474,000 -377,000 -377,000 -378,000 -378,000 -392,000 -397,000 -328,000 -261,000 -458,000 -466,000 -475,000 -351,000                              
        inventories:
                                                                 
        finished goods
      20,906,000 16,705,000 18,391,000 22,635,000 23,701,000 22,382,000 19,259,000 19,202,000 19,643,000 26,329,000 22,554,000 21,281,000 28,102,000 28,893,000 28,165,000 34,144,000 25,810,000 14,688,000 16,536,000 12,781,000 17,649,000 17,778,000 17,637,000 12,968,000 24,632,000 21,738,000 18,931,000 17,651,000 30,301,000 27,726,000 16,447,000 19,532,000  17,153,000 15,910,000  11,695,000  26,433,000                   23,431,000  
        raw materials
      2,334,000 1,605,000 1,408,000 1,812,000 1,788,000 2,519,000 2,127,000 2,068,000 2,320,000 1,799,000 1,490,000 1,420,000 1,530,000 1,990,000 1,565,000 1,831,000 1,590,000 1,895,000 1,670,000 1,521,000 1,569,000 1,795,000 1,565,000 1,364,000 1,671,000 1,573,000 1,704,000 1,935,000 2,239,000 1,483,000 1,488,000 1,362,000  4,847,000 1,377,000  1,554,000  20,313,000                   11,328,000  
        total inventories
      23,240,000 18,310,000 19,799,000 24,447,000 25,489,000 24,901,000 21,386,000 21,270,000 21,963,000 28,128,000 24,044,000 22,701,000 29,632,000 30,883,000 29,730,000 35,975,000 27,400,000 16,583,000 18,206,000 14,302,000 19,218,000 19,573,000 19,202,000 14,332,000 26,303,000 23,311,000 20,635,000 19,586,000 32,540,000 29,209,000 17,935,000 20,894,000  22,000,000 17,287,000  13,249,000  48,639,000                   37,080,000  
        supplies, prepaid items and other:
                                                                 
        prepaid insurance
      8,953,000 12,588,000 1,704,000 5,925,000 10,116,000 14,345,000 2,014,000 6,153,000 10,768,000 14,846,000 1,863,000 7,084,000 12,271,000 17,429,000 1,758,000 6,174,000 10,557,000 14,244,000 1,879,000 5,682,000 10,051,000 12,315,000 1,478,000 5,195,000 8,722,000 11,837,000 1,478,000 5,032,000 7,933,000 10,924,000 1,657,000 7,813,000 10,535,000 1,606,000 5,057,000 11,217,000 1,680,000  7,959,000 3,189,000 1,321,000                 2,396,000  
        precious metals
      15,793,000 14,538,000 12,143,000 13,198,000 12,342,000 11,596,000 11,675,000 12,447,000 11,560,000 12,094,000 12,544,000 13,100,000 14,474,000 13,323,000 14,843,000 13,929,000 13,945,000 14,945,000 10,670,000 7,801,000 6,674,000 6,787,000 7,179,000 7,682,000        7,269,000 7,411,000 8,491,000 8,806,000 8,648,000 9,375,000  12,669,000                   6,026,000  
        supplies
      34,080,000 33,399,000 33,163,000 32,834,000 32,405,000 31,995,000 31,421,000 31,257,000 30,682,000 30,486,000 30,251,000 29,730,000 28,570,000 27,501,000 27,036,000 27,263,000 27,066,000 26,558,000 26,011,000 25,878,000 25,406,000 25,288,000 25,174,000 25,221,000 25,162,000 24,689,000 25,169,000 25,494,000 25,276,000 24,576,000 27,738,000 28,649,000 27,729,000 27,081,000 26,261,000 24,100,000 22,568,000  20,003,000                     
        other
      4,051,000 5,380,000 2,349,000 2,627,000 3,558,000 3,916,000 4,123,000 2,627,000 2,767,000 2,337,000 4,409,000 2,904,000 9,491,000 8,346,000 5,250,000 7,134,000 9,805,000 2,234,000 7,629,000 4,757,000 3,258,000 6,802,000 3,349,000 1,660,000 8,833,000 8,303,000 10,114,000 8,720,000 8,002,000 8,303,000 9,643,000 2,043,000 1,284,000 2,746,000 1,886,000 1,733,000 2,323,000  4,445,000 5,769,000 5,479,000 4,819,000 5,008,000 1,369,000         -8,000     4,444,000  
        total supplies, prepaid items and other
      62,877,000 65,905,000 49,359,000 54,584,000 58,421,000 61,852,000 49,233,000 52,484,000 55,777,000 59,763,000 49,067,000 52,818,000 64,806,000 66,599,000 48,887,000 54,500,000 61,373,000 57,981,000 46,189,000 44,118,000 45,389,000 51,192,000 37,180,000 39,758,000 42,717,000 44,829,000 36,761,000 39,246,000 41,211,000 44,464,000 39,038,000 46,630,000 48,695,000 42,126,000 44,243,000 46,891,000 42,460,000  51,030,000                   12,866,000  
        assets held for sale
      1,000,000 3,400,000 2,851,000                                                         
        total current assets
      321,301,000 293,294,000 270,620,000 255,212,000 299,327,000 309,714,000 314,237,000 332,003,000 399,243,000 436,742,000 437,249,000 440,092,000 579,827,000 566,599,000 571,052,000 638,026,000 529,435,000 243,136,000 162,955,000 143,099,000 138,964,000 129,580,000 138,029,000 152,775,000 157,235,000 130,873,000 157,180,000 169,017,000 141,505,000 166,413,000 158,017,000 158,825,000 163,740,000 162,113,000 179,756,000 181,146,000 282,809,000  231,282,000           79,935,000        129,473,000 6,396,000 
        property, plant and equipment
      825,572,000 833,525,000 833,252,000 838,035,000 842,507,000 847,570,000 842,863,000 830,077,000 832,192,000 835,298,000 828,828,000 835,423,000 842,925,000 848,661,000 853,939,000 839,411,000 850,372,000 858,480,000 869,497,000 871,780,000 882,816,000 891,198,000 899,613,000 913,441,000 928,393,000 936,474,000 950,175,000 951,546,000 962,538,000 974,248,000 980,625,000 998,366,000 1,014,038,000 1,020,638,000 1,036,758,000 1,078,958,000 1,089,845,000 25,857,000 1,087,954,000           229,000        73,094,000 234,000 
        other assets:
                                                                 
        operating lease assets
      43,416,000 45,571,000 44,444,000 33,623,000 33,002,000 28,727,000 24,377,000 25,602,000 27,235,000 24,852,000 24,621,000 25,050,000 21,321,000 22,682,000 24,885,000 27,056,000 24,829,000 27,317,000 28,308,000 27,854,000 27,671,000 26,403,000 25,356,000 20,895,000 19,149,000 15,330,000 16,069,000 13,945,000 15,317,000                               
        intangible and other assets
      1,068,000 1,149,000 1,232,000 1,213,000 1,102,000 1,177,000 1,456,000 1,376,000 1,449,000 1,292,000 1,508,000 1,572,000 1,697,000 1,877,000 2,856,000 3,221,000 3,555,000 3,907,000 13,784,000 6,752,000 5,546,000 6,121,000 6,927,000 7,554,000 5,374,000 5,812,000 6,357,000 6,766,000 7,109,000 7,672,000 8,952,000 10,958,000 11,404,000 12,142,000 9,083,000 10,316,000                        
        total other assets
      44,484,000 46,720,000 45,676,000 34,836,000 34,104,000 29,904,000 25,833,000 26,978,000 28,684,000 26,144,000                                                11,955,000  
        total assets
      1,191,357,000 1,173,539,000 1,149,548,000 1,128,083,000 1,175,938,000 1,187,188,000 1,182,933,000 1,189,058,000 1,260,119,000 1,298,184,000                                                  
        liabilities and stockholders' equity
                                                                 
        current liabilities:
                                                                 
        accounts payable
      62,465,000 64,514,000 59,994,000 59,577,000 58,854,000 83,498,000 75,734,000 61,343,000 56,064,000 68,323,000 56,796,000 54,524,000 68,341,000 78,182,000 93,887,000 69,308,000 60,649,000 49,458,000 73,658,000 51,212,000 57,360,000 46,551,000 41,192,000 45,245,000 54,010,000 58,477,000 54,088,000 43,849,000 49,898,000 62,589,000 55,647,000 49,047,000 55,992,000 49,018,000 49,200,000 54,246,000 54,946,000 18,622,000 106,853,000 -3,895,000 -1,044,000 -6,032,000 -7,141,000 -5,393,000 -4,695,000 980,000 3,588,000 -10,476,000 -5,628,000 291,000   -3,849,000    4,752,000 32,659,000 129,000 
        short-term financing
      7,186,000 10,686,000 1,384,000 4,127,000 8,175,000 12,146,000 1,528,000 4,551,000 9,018,000 13,398,000  5,118,000 10,168,000 16,134,000 1,425,000 5,682,000 9,911,000 12,716,000 1,083,000 4,516,000 8,157,000 13,576,000 751,000 3,834,000 6,893,000 9,929,000 607,000 3,222,000 5,863,000 8,577,000 324,000 6,137,000 8,585,000  2,622,000 8,218,000 919,000  6,399,000           5,646,000          
        accrued and other liabilities
      34,143,000 29,551,000 33,107,000 26,555,000 44,687,000 30,874,000 36,107,000 25,543,000 38,820,000 30,961,000 37,395,000 31,210,000 43,617,000 38,470,000 42,062,000 31,325,000 44,913,000 33,301,000 50,772,000 30,541,000 40,722,000 30,367,000 40,957,000 27,768,000 40,544,000 25,484,000 39,309,000 29,786,000 37,671,000 42,129,000 53,796,000 30,590,000 35,573,000 29,185,000 32,156,000 44,037,000 30,250,000  42,049,000           1,036,000          
        current portion of long-term debt
      770,000 760,000 817,000 6,252,000 7,756,000 9,116,000 10,979,000 5,871,000 5,742,000 5,847,000 5,493,000 5,371,000 8,544,000 9,522,000 10,269,000 10,977,000 8,112,000 9,454,000 9,249,000 9,049,000 18,082,000 16,801,000 15,203,000 11,492,000 9,665,000 9,410,000 9,090,000 8,672,000 12,275,000 12,518,000 12,698,000 9,065,000 9,146,000 9,336,000 9,622,000 13,745,000 110,495,000  16,836,000                   3,306,000 41,000 
        total current liabilities
      104,564,000 105,511,000 95,302,000 96,511,000 119,472,000 135,634,000 124,348,000 97,308,000 109,644,000 118,529,000 99,684,000 96,223,000 130,670,000 142,308,000 147,643,000 117,292,000 123,585,000 104,929,000 134,762,000 95,318,000 124,321,000 107,295,000 98,103,000 88,339,000 111,112,000 103,300,000 103,094,000 85,529,000 105,707,000 125,813,000 122,465,000 94,839,000 109,296,000 87,539,000 93,600,000 120,246,000 196,610,000  172,137,000           7,017,000        61,990,000 1,267,000 
        long-term debt
      440,433,000 440,295,000 447,582,000 446,370,000 478,174,000 476,163,000 475,991,000 479,769,000 543,835,000 575,874,000 577,173,000 578,214,000 702,071,000 702,733,000 703,811,000 704,427,000 708,398,000 518,190,000 460,637,000 461,459,000 463,673,000 467,389,000 470,751,000 487,552,000 480,837,000 449,634,000 447,663,000 448,164,000 412,913,000 412,681,000 402,975,000 399,416,000 400,253,000 401,077,000 401,889,000 406,475,000 409,090,000  511,678,000                   130,460,000 1,727,000 
        noncurrent operating lease liabilities
      35,774,000 37,668,000 36,579,000 26,327,000 25,701,000 21,387,000 17,137,000 17,491,000 18,260,000 16,074,000 15,713,000 16,158,000 13,460,000 14,896,000 16,768,000 18,681,000 17,542,000 19,568,000 20,704,000 20,277,000 20,244,000 19,845,000 19,249,000 15,956,000 14,506,000 11,404,000 11,441,000 9,072,000 9,671,000                               
        other noncurrent accrued and other liabilities
      535,000  456,000 456,000 456,000  523,000 523,000 523,000 523,000 522,000 522,000 522,000 522,000 523,000 523,000 3,023,000 3,030,000 4,040,000 7,372,000 6,333,000 6,090,000 5,596,000 5,244,000 5,154,000 6,214,000 7,001,000 7,122,000 8,373,000                               
        deferred income taxes
      67,102,000 69,557,000 65,020,000 62,619,000 61,572,000 61,908,000 65,973,000 71,174,000 69,672,000 68,853,000 66,370,000 71,223,000 69,095,000 63,487,000 57,843,000 57,232,000 37,455,000 26,633,000 31,333,000 31,195,000 31,266,000 30,939,000 32,663,000 34,056,000 35,343,000 35,717,000 50,815,000 51,322,000 57,057,000 56,612,000 55,802,000 53,877,000 54,787,000 82,069,000 88,768,000  4,369,000  4,588,000 -18,519,000 12,839,000 35,289,000 6,170,000 2,541,000 340,000 245,000 1,793,000 2,539,000 1,337,000    -3,150,000       
        commitments and contingencies
                                                                 
        stockholders' equity:
                                                                 
        common stock
      9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 9,117,000 8,983,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000 3,128,000  2,714,000           2,664,000        1,708,000 1,708,000 
        capital in excess of par value
      507,655,000 506,821,000 505,072,000 503,496,000 501,967,000 504,578,000 502,972,000 501,422,000 501,097,000 501,026,000 499,528,000 498,517,000 497,216,000 497,179,000 496,251,000 495,330,000 493,964,000 493,161,000 489,107,000 192,980,000 193,618,000 198,215,000 198,013,000 197,566,000 196,972,000 196,833,000 200,045,000 199,636,000 198,950,000 198,482,000 198,103,000 195,289,000 193,956,000 195,206,000 194,009,000 192,172,000 193,516,000  190,378,000           162,092,000        57,551,000 57,547,000 
        retained earnings
      251,960,000 232,275,000 216,143,000 209,028,000 206,022,000 207,662,000 216,811,000 242,193,000 232,638,000 227,015,000 232,362,000 240,088,000 214,993,000 199,092,000 133,222,000 130,910,000 27,511,000     -41,487,000 -9,989,000 19,810,000 29,369,000 57,632,000 93,968,000 133,026,000 134,481,000 153,773,000 174,403,000 242,686,000 256,214,000 263,130,000 287,800,000 314,301,000 342,880,000  223,616,000           153,888,000          
        stockholders' equity: - sum
      768,732,000  730,332,000 721,641,000 717,106,000  728,900,000    741,007,000 747,722,000 721,326,000 705,388,000 638,590,000 635,357,000 530,592,000 471,023,000 429,629,000 147,264,000 134,958,000 162,856,000 194,152,000 223,504,000 232,469,000   338,790,000 339,559,000   444,103,000 456,298,000 464,464,000 487,937,000 512,601,000 542,524,000  419,708,000                     
        less treasury stock, at cost:
                                                                 
        total stockholders' equity
      542,949,000 519,973,000 504,609,000 495,800,000 490,563,000 491,640,000 498,961,000 522,793,000 518,185,000 518,331,000 532,744,000 539,797,000 529,952,000 515,873,000 526,144,000 609,559,000 518,188,000 460,490,000 423,068,000 141,015,000 127,037,000 149,643,000 181,268,000 210,620,000 219,495,000 247,327,000 283,496,000 322,058,000 322,827,000 342,197,000 360,521,000 425,948,000 438,196,000 445,221,000 468,694,000 492,513,000 520,001,000  398,147,000                     
        total liabilities and stockholders’ equity
      1,191,357,000 1,173,539,000 1,149,548,000 1,128,083,000 1,175,938,000 1,187,188,000 1,182,933,000 1,189,058,000 1,260,119,000 1,298,184,000                                                  
        other noncurrent accrued liabilities
       535,000    456,000                                                      
        total stockholders’ equity
       748,213,000    721,357,000  752,732,000 742,852,000 737,158,000                                        304,111,000        16,021,000 25,287,000 
        restricted cash
             77,000 2,532,000 2,532,000                           106,940,000                     389,000  
        other assets: - sum
                26,129,000 26,622,000 23,018,000 24,559,000 27,741,000 30,277,000 28,384,000 31,224,000 42,092,000 34,606,000 33,217,000 32,524,000 32,283,000 28,449,000 24,523,000   20,711,000 22,426,000                               
        redeemable preferred stocks:
                                                                 
        series e 14% cumulative, redeemable class c preferred stock, no par value, no shares issued or outstanding at december 31, 2021;
                                                                 
        series f redeemable class c preferred stock, no par value, no shares issued or outstanding at december 31, 2021;
                                                                 
        series b 12% cumulative, convertible preferred stock, 100 par value; no shares issued or outstanding at december 31, 2021;
                                                                 
        series d 6% cumulative, convertible class c preferred stock, no par value; no shares issued or outstanding at december 31, 2021;
                                                                 
        accumulated deficit
                       -31,255,000 -71,461,000 -51,844,000 -64,788,000                                     -59,250,000 -61,738,000 
        series e 14% cumulative, redeemable class c preferred stock, no par value, no shares issued or outstanding at september 30, 2021;
                                                                 
        series f redeemable class c preferred stock, no par value, no shares issued or outstanding at september 30, 2021;
                                                                 
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3.4 million
                        2,000,000                                         
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1.4 million
                        1,000,000                                         
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 297,706,000
                         292,849,000                                        
        series f redeemable class c preferred stock, no par value, 1 share issued and outstanding; aggregate liquidation preference of 100
                                                                 
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,385,000
                         2,000,000                                        
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,342,000
                         1,000,000                                        
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 287,493,000
                          282,123,000                                       
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,325,000
                          2,000,000                                       
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,327,000
                          1,000,000                                       
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 277,982,000
                           272,101,000                                      
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,265,000
                           2,000,000                                      
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,312,000
                           1,000,000                                      
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 268,685,000
                            262,295,000                                     
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,205,000
                            2,000,000                                     
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,297,000
                            1,000,000                                     
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 259,796,000
                             252,898,000                                    
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,145,000
                             2,000,000                                    
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,282,000
                             1,000,000                                    
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 251,108,000
                              243,704,000                                   
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,085,000
                              2,000,000                                   
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,267,000
                              1,000,000                                   
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 242,800,000
                               234,893,000                                  
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,025,000
                               2,000,000                                  
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,252,000
                               1,000,000                                  
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 234,680,000
                                226,271,000                                 
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 2,965,000
                                2,000,000                                 
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,237,000
                                1,000,000                                 
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 226,916,000
                                 218,007,000                                
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 2,905,000
                                 2,000,000                                
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,222,000
                                 1,000,000                                
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 219,327,000
                                  209,921,000                               
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 2,845,000
                                  2,000,000                               
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,207,000
                                  1,000,000                               
        prepaid and refundable income taxes
                                   661,000  856,000 1,736,000 2,202,000 2,233,000 1,193,000 6,514,000  5,954,000                     
        noncurrent accrued and other liabilities
                                   8,861,000 11,247,000 11,173,000 11,691,000 11,858,000 13,075,000 12,326,000 9,356,000  23,754,000           5,349,000          
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 212,071,000
                                   202,169,000                              
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 2,785,000
                                   2,000,000                              
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding; aggregate liquidation preference of 1,192,000
                                   1,000,000                              
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 204,979,000
                                    194,584,000                             
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding
                                    2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000  2,000,000                     
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued and outstanding
                                    1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000  1,000,000                     
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 191,569,000
                                     182,896,000                            
        inventories
                                      21,856,000   22,939,000  25,376,000  2,145,000 -1,394,000 8,203,000 5,446,000 6,015,000 -5,368,000 -6,607,000 -6,422,000 1,262,000 -9,123,000    -1,587,000    846,000   
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 185,231,000
                                      174,959,000                           
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 179,036,000
                                       167,129,000                          
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 173,113,000
                                        159,571,000                         
        current assets held for sale
                                                                 
        noncurrent assets held for sale
                                                                 
        current liabilities held for sale
                                                                 
        noncurrent liabilities held for sale
                                                                 
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 161,788,000
                                         145,029,000                        
        intangible and other
                                          12,942,000 8,173,000 24,060,000                     
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued; 139,768 outstanding; aggregate liquidation preference of 156,377,000
                                          137,983,000                       
        other current assets
                                           366,000                      
        total assets classified as held for sale
                                           114,468,000                      
        less noncurrent assets classified as held for sale
                                                                 
        current assets classified as held for sale
                                           114,468,000                      
        current and noncurrent accrued and other liabilities
                                           28,667,000                      
        total liabilities classified as held for sale
                                           47,289,000                      
        less noncurrent liabilities classified as held for sale
                                                                 
        current liabilities classified as held for sale
                                           47,289,000                      
        net sales
                                           71,982,000                      
        cost of sales
                                           47,724,000                      
        selling, general and administrative expense
                                           17,301,000                      
        transaction costs
                                           1,985,000                      
        interest expense
                                                                 
        other income
                                           -25,000                      
        income from operations of discontinued operations
                                           4,997,000                      
        benefit for income taxes
                                           -17,782,000                      
        income from discontinued operations, including taxes
                                           22,779,000                      
        work in progress
                                            1,893,000                     
        series e 14% cumulative, redeemable class c preferred stock, no par value, 210,000 shares issued and outstanding; aggregate liquidation preference of 219,637,000
                                            186,865,000                     
        cash flows from continuing operating activities
                                                                 
        net income
                                             -34,765,000 19,634,000 54,962,000 17,619,000 7,359,000 -68,000 58,604,000 47,044,000 40,336,000 14,303,000    42,335,000    9,202,000   
        adjustments to reconcile net income to net cash from continuing operating activities:
                                                                 
        net income from discontinued operations
                                             58,000 89,000 179,000 49,000 59,000  182,000 120,000 118,000 21,000        131,000   
        gains on property insurance recoveries associated with property, plant and equipment
                                              -5,147,000 -66,255,000                  
        impairment of long-lived assets
                                             43,188,000                    
        depreciation, depletion and amortization of property, plant and equipment
                                             40,496,000 35,664,000 28,310,000 20,062,000 13,060,000 6,550,000 20,681,000              
        cash provided
                                                                 
        prepaid and accrued income taxes
                                             576,000 3,505,000 -13,278,000 -9,459,000 -10,853,000 -10,909,000 11,013,000   1,686,000           
        other supplies, prepaid items and other
                                             -4,339,000 61,000 -10,048,000 2,839,000 5,646,000 2,212,000 -2,254,000 4,638,000 3,087,000 1,174,000           
        accrued interest
                                             -709,000 -37,000 13,356,000                  
        customer deposits
                                             -4,623,000 1,333,000  -3,693,000 -6,529,000 -1,164,000 3,684,000 7,735,000 -3,162,000 474,000    -233,000    3,027,000   
        other current and noncurrent liabilities
                                             -2,533,000 2,078,000 2,282,000 6,695,000 615,000 -1,896,000 383,000 2,227,000 3,215,000 -202,000    7,889,000       
        net cash from continuing operating activities
                                             31,609,000 66,744,000 54,055,000 45,278,000 6,878,000  99,471,000 73,380,000 56,522,000 11,115,000    26,605,000    9,130,000   
        cash flows from continuing investing activities
                                                                 
        expenditures for property, plant and equipment
                                             -439,807,000 -219,842,000 -157,377,000 -113,727,000                 
        acquisition of working interests in natural gas properties
                                               -9,205,000 -9,205,000   -50,219,000              
        proceeds from property insurance recovery associated with property, plant and equipment
                                              5,147,000 66,437,000  14,022,000 4,495,000 11,415,000              
        software and software development costs
                                             -2,889,000 -3,161,000                   
        proceeds from sales of property and equipment
                                             87,000 662,000 1,459,000 1,439,000 1,224,000 199,000 307,000 213,000 203,000 266,000    192,000    117,000   
        proceeds from short-term investments
                                             39,500,000 14,500,000     20,037,000 20,037,000 10,022,000 4,000           
        purchases of short-term investments
                                             -25,000,000 -29,000,000     -10,032,000              
        proceeds from noncurrent restricted cash and cash equivalents
                                             45,969,000 200,111,000                   
        deposits of current and noncurrent restricted cash and cash equivalents
                                              -165,471,000                   
        proceeds from noncurrent restricted investments
                                             25,000,000 259,990,000                   
        purchases of noncurrent restricted investments
                                              -75,000,000                   
        other investing activities
                                             3,137,000 41,000                   
        net cash used by continuing investing activities
                                             -354,003,000 -12,023,000 -389,623,000 -378,643,000 -68,923,000 -39,841,000 -121,669,000 -51,996,000 -32,860,000     -7,148,000    -6,129,000   
        cash flows from continuing financing activities
                                                                 
        proceeds from revolving debt facility
                                             47,438,000      209,238,000 209,238,000 209,238,000 161,506,000           
        payments on revolving debt facility
                                             -47,438,000      -209,238,000 -209,238,000 -209,238,000 -161,506,000           
        proceeds from 12% senior secured notes, net of discount and fees
                                             47,889,000                    
        proceeds from 7.75% senior secured notes, net of pay off of secured term loan and fees
                                                                 
        proceeds from other long-term debt, net of fees
                                             31,047,000  39,825,000 39,825,000 39,825,000 34,825,000        2,424,000       
        payments on other long-term debt
                                             -13,771,000 -10,473,000 -12,647,000 -6,657,000 -4,661,000 -1,738,000 -7,019,000 -5,830,000 -4,645,000 -3,439,000    -7,629,000    -1,494,000   
        payments of debt issuance costs
                                             -1,200,000  -1,872,000 -1,607,000   -88,000 -88,000 -88,000     -143,000       
        proceeds from loans secured by cash value of life insurance policies
                                             1,288,000                    
        proceeds from short-term financing
                                             10,943,000 14,346,000 16,385,000    11,192,000              
        payments on short-term financing
                                             -13,779,000 -16,140,000 -11,890,000 -8,351,000 -5,577,000 -2,782,000 -7,584,000 -5,077,000 -3,376,000 -1,684,000           
        proceeds from issuance of redeemable preferred stocks, net of discount and fees
                                             180,013,000                    
        proceeds from issuance of common stock warrants, net of discount and fees
                                             21,018,000                    
        payments of issuance costs relating to preferred stocks and warrants
                                             -2,472,000                    
        proceeds from exercises of stock options
                                             1,785,000 1,074,000 1,014,000    767,000   173,000           
        excess income tax benefit associated with stock-based compensation
                                             596,000   411,000 110,000 110,000 498,000 353,000 223,000 186,000           
        dividends paid on convertible preferred stocks
                                             -300,000                    
        net cash provided (used) by continuing financing activities
                                             263,057,000 -11,493,000 381,472,000 375,143,000 29,701,000 30,664,000 -4,491,000 -12,356,000 -9,810,000 -7,021,000        -2,777,000   
        cash flows of discontinued operations:
                                                                 
        operating cash flows
                                             -160,000 -167,000 -174,000 -145,000 -104,000 -52,000 -220,000 -184,000 -82,000 -36,000    -106,000    -105,000   
        net increase in cash and cash equivalents
                                             -59,497,000 43,061,000 45,730,000 41,633,000 -32,448,000  -26,909,000 8,844,000 13,770,000 -11,587,000    38,614,000       
        cash and cash equivalents at beginning of year
                                             186,811,000 143,750,000 98,020,000    124,929,000              
        cash and cash equivalents at end of year
                                             127,314,000 186,811,000 143,750,000    98,020,000              
        proceeds from senior secured notes, net of pay off of secured term loan and fees
                                               350,957,000 350,957,000                 
        payments on loans secured by cash value of life insurance policies
                                                   -1,918,000 -1,918,000 -1,918,000 -1,918,000           
        acquisition of redeemable preferred stock
                                                   -39,000 -39,000 -39,000 -39,000           
        dividends paid on preferred stocks
                                              -300,000 -300,000 -300,000 -300,000  -300,000 -300,000 -300,000 -300,000           
        deposits of current and noncurrent restricted cash
                                               -80,943,000 -110,015,000                 
        purchase of noncurrent restricted investments
                                               -209,990,000 -169,988,000                 
        proceeds from sales of carbon credits
                                                   761,000              
        payments on contractual obligations—carbon credits
                                                                 
        other assets
                                               -4,000 -818,000 -812,000 -109,000 -508,000 -398,000 -221,000 -99,000 2,253,000   -70,000    -122,000  315,000 
        proceeds from secured term loan, net of fees
                                                                 
        proceeds from modification of secured term loan, net of fees
                                                                 
        payments associated with induced conversion of 5.5% convertible debentures
                                                                 
        deferred gain on insurance recoveries
                                                2,000,000 6,685,000 5,122,000               
        proceeds from property insurance recoveries associated with property, plant and equipment
                                                23,671,000                 
        purchase of short-term investments
                                                    -10,032,000 -10,021,000 -4,000           
        proceeds from exercise of stock options
                                                865,000 304,000 249,000  543,000 333,000     1,112,000       
        cash and cash equivalents at beginning of period
                                                98,020,000 98,020,000 98,020,000  124,929,000 124,929,000 124,929,000    2,255,000    4,653,000   
        cash and cash equivalents at end of period
                                                139,653,000 65,572,000 68,670,000  133,773,000 138,699,000 113,342,000    40,869,000    4,772,000   
        supplemental cash flow information:
                                                                 
        cash payments for income taxes, net of refunds
                                                12,865,000 11,865,000 9,715,000  19,596,000 13,057,000 4,581,000           
        noncash investing and financing activities:
                                                                 
        insurance claims receivable associated with property, plant and equipment
                                                250,000 250,000   11,415,000 10,364,000            
        other assets, accounts payable and long-term debt associated with additions of property, plant and equipment
                                                19,488,000 11,486,000 20,510,000               
        long-term debt associated with additions of capitalized internal-use software and software development
                                                2,775,000                 
        secured term loan extinguished
                                                66,563,000                 
        debt issuance costs incurred associated with senior secured notes
                                                6,498,000                 
        debt issuance costs written off associated with secured term loan
                                                630,000                 
        prepayment premium incurred associated with secured term loan
                                                666,000                 
        capital expenditures
                                                 -82,608,000 -44,344,000 -92,644,000 -61,613,000 -32,455,000 -15,632,000    -10,300,000    -5,567,000   
        deposits of restricted cash
                                                 -749,000 -82,000  -23,000 -208,000            
        adjustments to reconcile net income to net cash provided (used) by continuing operating activities:
                                                                 
        losses on sales and disposals of property and equipment
                                                  50,000 996,000 667,000 551,000            
        amortization of other assets
                                                  87,000 328,000              
        stock-based compensation
                                                  414,000 1,652,000 1,237,000 829,000 415,000    228,000       
        provisions for losses on accounts receivable
                                                  100,000   123,000 40,000    874,000       
        benefit from (realization of) losses on inventory
                                                  -284,000    5,000           
        benefit from (realization of) losses on firm sales commitments
                                                  -210,000 212,000              
        benefit from impairment on long-lived assets
                                                  210,000        250,000       
        equity in earnings of affiliate
                                                  -171,000 -681,000 -510,000 -341,000 -171,000    -654,000    -405,000   
        distributions received from affiliate
                                                  429,000 1,782,000 1,285,000 855,000 429,000    570,000    500,000   
        changes in fair value of commodities contracts
                                                  162,000 -79,000 -85,000 208,000 -142,000           
        changes in fair value of interest rate contracts
                                                  -168,000 -367,000 -206,000 -226,000 -270,000           
        accrued payroll and benefits
                                                  -1,068,000  -2,918,000 -935,000 -1,122,000           
        net cash provided (used) by continuing operating activities
                                                  -20,121,000               
        net decrease in cash and cash equivalents
                                                  -29,350,000               
        losses on extinguishment of debt
                                                                 
        expense associated with modification of secured term loan
                                                                 
        expense associated with induced conversion of 5.5% convertible debentures
                                                                 
        net gains on carbon credits
                                                   -155,000              
        provisions for (recovery of) losses on accounts receivable
                                                   -214,000              
        provisions for losses on inventory
                                                   1,140,000 337,000 44,000            
        commodities contracts
                                                   11,000              
        proceeds from (deposits of) restricted cash
                                                          3,651,000    -557,000   
        payments on contractual obligations - carbon credits
                                                   -786,000 -180,000             
        acquisitions of 5.5% convertible debentures
                                                                 
        purchase of treasury stock
                                                                 
        loss on extinguishment of debt
                                                                 
        net gain on carbon credits
                                                                 
        depreciation of property, plant and equipment
                                                    14,857,000 10,079,000 5,018,000    9,201,000    5,420,000   
        amortization
                                                    250,000 170,000 87,000    841,000    587,000   
        benefit from (recovery of) losses on accounts receivable
                                                    -185,000             
        benefit from losses on firm sales commitments
                                                    120,000  2,984,000        296,000   
        cash provided (used) by changes in assets and liabilities
                                                                 
        accrued and prepaid income taxes
                                                    5,309,000 7,375,000            
        other assets and accounts payable associated with property, plant and equipment
                                                    9,379,000 9,418,000            
        debt issuance costs incurred associated with secured term loan
                                                                 
        debt issuance costs written off associated with 5.5% debentures
                                                                 
        accrued liabilities extinguished associated with 5.5% debentures
                                                                 
        5.5% debentures converted to common stock
                                                                 
        accrued contractual profit-sharing obligation
                                                     -1,451,000            
        deferred revenue on product sales
                                                     17,000            
        payments on contractual obligations — carbon credits
                                                     -180,000            
        gain on sales and disposals of property and equipment
                                                      15,000    446,000       
        cash provided (used) by changes in assets and liabilities:
                                                                 
        payments on contractual obligations – carbon credits
                                                      -180,000           
        net cash provided (used) by continuing investing activities
                                                      -15,645,000           
        other assets and accounts payable associated with additions of property, plant and equipment
                                                      3,208,000           
        accounts payable associated with 5.5% debentures
                                                                 
        supplies, prepaid items and other
                                                       5,833,000         2,689,000 
        due from subsidiaries
                                                       28,785,000         1,872,000 
        notes receivable from a subsidiary
                                                       10,000,000          
        investments in and due from subsidiaries
                                                       290,303,000         25,639,000 
        liabilities and stockholders’ equity
                                                                 
        redeemable, noncumulative, convertible preferred stock
                                                       44,000         83,000 
        due to subsidiaries
                                                       56,243,000         2,558,000 
        stockholders’ equity:
                                                                 
        preferred stock
                                                       3,000,000         34,177,000 
        less treasury stock
                                                       17,533,000          
        cash flows from continuing operating activities:
                                                                 
        net income (income) from discontinued operations
                                                          -348,000       
        realization of losses on inventory
                                                          -360,000       
        benefit from (realization and reversal of) losses on firm sales commitments
                                                          -328,000       
        change in fair value of interest rate caps
                                                          241,000    -337,000   
        other supplies and prepaid items
                                                          -2,674,000    1,615,000   
        deferred rent expense
                                                          -2,423,000    -2,291,000   
        cash flows from continuing investing activities:
                                                                 
        purchase of interest rate cap contracts
                                                          -621,000       
        cash flows from continuing financing activities:
                                                                 
        proceeds from revolving debt facilities
                                                          381,835,000    226,139,000   
        payments on revolving debt facilities
                                                          -408,242,000    -234,905,000   
        proceeds from 5.5% convertible debentures, net of fees
                                                          56,985,000       
        proceeds from 7% convertible debentures, net of fees
                                                              16,509,000   
        acquisition of 10-3/4% senior unsecured notes
                                                                 
        proceeds from short-term financing and drafts payable
                                                          56,000    123,000   
        payments on short-term financing and drafts payable
                                                          -2,909,000    -2,124,000   
        acquisition of non-redeemable preferred stock
                                                          -1,292,000       
        dividends paid on preferred stock
                                                          -2,934,000    -136,000   
        net cash from continuing financing activities
                                                          19,263,000       
        debt issuance costs
                                                          3,026,000    1,491,000   
        accounts payable and other long-term debt associated with purchases of property, plant and equipment
                                                          2,203,000       
        debt issuance costs associated with 7% convertible debentures converted to common stock
                                                          266,000       
        7% convertible debentures converted to common stock
                                                          4,000,000       
        series 2 preferred stock converted to common stock of which 12,303,000 was charged to accumulated deficit
                                                          27,593,000       
        gains on property insurance recoveries
                                                                 
        gains on sales of property and equipment
                                                              -7,000   
        provisions for losses on accounts receivables
                                                              282,000   
        realization and reversal of losses on inventory
                                                              -539,000   
        provisions for impairment on long-lived assets
                                                              286,000   
        other accrued and noncurrent liabilities
                                                              2,243,000   
        proceeds from property insurance recoveries
                                                                 
        acquisition of 10 3/4 % senior unsecured notes
                                                              -6,950,000   
        proceeds from other long-term debt
                                                                 
        purchases of preferred stock
                                                                 
        net proceeds from issuance of common stock
                                                              61,000   
        net increase in cash
                                                              119,000   
        long-term and other debt issued for property, plant and equipment
                                                              19,000   
        work in process
                                                               2,321,000  
        debt issuance and other debt-related costs
                                                               4,025,000  
        investment in affiliate
                                                               3,373,000  
        goodwill
                                                               1,724,000  
        short-term financing and drafts payable
                                                               1,645,000  
        accrued liabilities
                                                               24,380,000 1,014,000 
        other noncurrent liabilities
                                                               6,051,000 1,745,000 
        contingencies
                                                                 
        series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding; aggregate liquidation preference of 3,492,600
                                                               2,000,000  
        series 2 3.25 convertible, exchangeable class c preferred stock, 50 stated value; 623,550 shares issued; aggregate liquidation preference of 44,394,647
                                                               31,177,000  
        series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued; aggregate liquidation preference of 1,240,000
                                                               1,000,000  
        accumulated other comprehensive loss
                                                               -917,000  
        less treasury stock at cost:
                                                                 
        series 2 preferred, 18,300 shares
                                                               797,000  
        cash
                                                                1,783,000 
        treasury stock
                                                                -6,407,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2008-12-31 2006-03-31 
                                                   
          cash flows from operating activities
                                                   
          net income
        19,685,000 16,132,000 7,115,000 3,006,000 -1,640,000 -9,149,000 -25,382,000 9,555,000 5,623,000 -5,347,000 -7,726,000 25,095,000 15,901,000 65,870,000 2,312,000 103,399,000 58,766,000 42,082,000 -8,928,000               914,000 -17,112,000 -7,033,000 -5,986,000  133,551,000 15,091,000 -14,941,000   
          adjustments to reconcile net income to net cash from operating activities:
                                                   
          deferred income taxes
        -2,455,000 4,537,000 2,402,000 1,047,000 -336,000 -4,065,000 -5,201,000 1,502,000 819,000 2,483,000 -4,853,000 2,128,000 5,608,000 5,644,000 610,000 19,777,000 10,823,000 -4,700,000 138,000 -71,000 327,000 -1,724,000 -1,393,000 -1,287,000 -374,000 -15,098,000 -507,000 -5,735,000 445,000 810,000 -2,427,000 4,352,000 -910,000 -29,743,000 -6,698,000 -2,762,000 -1,242,000  -22,495,000 -7,304,000 -1,329,000   
          depreciation and amortization of property, plant and equipment
        20,919,000 21,787,000 19,378,000 20,648,000 20,117,000 21,793,000 16,623,000 18,747,000 17,114,000 18,562,000 15,436,000 16,977,000 17,439,000 16,924,000 16,130,000 16,686,000 17,197,000 17,309,000 17,655,000 16,963,000 16,762,000 17,624,000 17,385,000 16,980,000 17,592,000  17,665,000 17,084,000 16,826,000               
          stock-based compensation
        4,788,000 1,831,000 1,719,000 2,088,000 1,733,000 1,565,000 1,550,000 2,099,000 1,393,000 1,389,000 1,318,000 1,927,000 719,000 936,000    1,188,000    135,000                      
          other
        -1,215,000 -1,367,000 688,000 977,000 192,000 -2,976,000 -631,000 668,000 3,929,000 -494,000 -1,178,000 1,609,000 1,223,000 -2,154,000 -3,802,000 -120,000 1,438,000 -531,000 1,435,000 2,807,000 -1,058,000 451,000 438,000 1,819,000 1,373,000 -1,299,000 1,604,000 391,000 2,098,000 -4,977,000 3,145,000 3,303,000 627,000 -5,016,000 2,580,000 3,197,000 -327,000  6,330,000 -996,000 2,271,000   
          cash provided (used) by changes in operating assets and liabilities:
                                                   
          accounts receivable
        4,745,000 -10,612,000 4,624,000 548,000 -13,112,000 5,509,000 -2,359,000 9,877,000 -11,408,000 6,748,000 3,428,000 9,519,000 15,418,000 32,302,000 -13,474,000 3,076,000 -11,707,000 -20,783,000 1,239,000 -6,048,000 -17,321,000 -2,842,000 1,257,000 4,395,000 -7,512,000 -6,711,000 17,317,000 -4,349,000 2,543,000 -8,475,000 -619,000 14,370,000 -7,443,000 -8,008,000 9,930,000 -967,000 -7,276,000  13,661,000 -2,323,000 -1,910,000   
          inventories
        -4,322,000 1,731,000 4,283,000 528,000 -338,000 -3,658,000 506,000 -67,000 6,165,000 -3,972,000 -1,444,000 6,920,000 1,251,000 -1,153,000 6,245,000 -8,575,000 -10,817,000 1,624,000 -3,898,000 4,910,000 625,000 -111,000 -4,994,000 11,651,000 -2,996,000 -2,760,000 -1,049,000 13,294,000 -3,393,000 -11,297,000 -2,744,000 5,693,000 1,650,000 -3,226,000 -4,478,000 2,903,000 4,857,000  5,147,000 301,000 7,051,000   
          prepaid insurance
        3,635,000  4,221,000 4,191,000 4,229,000  4,139,000 4,615,000 4,078,000  5,220,000 5,188,000 5,158,000  4,416,000 4,383,000 3,687,000  3,803,000 4,368,000 2,265,000  3,717,000 3,527,000 3,115,000  3,554,000 2,901,000 2,991,000 -9,267,000 3,106,000 3,050,000 2,722,000 -8,976,000 3,451,000 3,134,000 3,026,000  2,675,000 1,962,000 2,604,000   
          supplies, prepaid items and other
        -1,846,000 -4,492,000 982,000 -1,385,000 -1,552,000 -373,000 639,000 -1,365,000 -116,000 3,767,000 -431,000 6,647,000 -4,455,000                               
          accounts payable
        1,994,000 42,000 988,000 368,000 -16,562,000 6,395,000 12,582,000 2,324,000 -7,911,000 12,408,000 2,117,000 -9,928,000 -4,861,000 -13,183,000 11,030,000 10,971,000 10,003,000 -8,500,000 5,805,000 -4,971,000 8,598,000 4,708,000 -3,595,000 -4,503,000 -3,171,000 7,270,000 2,183,000 -6,960,000 -10,480,000 9,185,000 3,156,000 2,298,000 -431,000 4,954,000 -1,216,000 -9,259,000 6,895,000  -1,659,000 6,821,000 10,843,000   
          accrued interest
        6,470,000  6,789,000 -9,953,000 7,208,000  7,383,000 -11,616,000 7,867,000  6,291,000 -14,959,000 10,905,000  11,018,000 -14,626,000 13,618,000  10,341,000 -10,432,000 10,412,000 -10,505,000 10,398,000 -10,120,000 11,805,000 -10,300,000 10,199,000 -8,972,000 9,659,000 -10,217,000 9,631,000 1,626,000 -7,959,000 7,976,000   -7,979,000    -8,078,000   
          customer deposits
        28,000    10,211,000                                   -1,580,000 1,022,000   
          other assets and other liabilities
        -629,000 -81,000 -997,000 3,248,000 -3,316,000 -1,476,000 2,470,000 1,221,000 -2,312,000 -8,260,000 4,772,000 932,000 -5,059,000 7,766,000 2,825,000 -73,000 -7,827,000 9,874,000 -8,295,000 -2,626,000 5,065,000  -1,527,000 1,255,000 -2,873,000  -429,000 -1,397,000 -2,401,000  3,053,000 -1,072,000 -666,000    -1,411,000       
          net cash from operating activities
        51,797,000 17,947,000 52,574,000 18,165,000 6,836,000 3,976,000 17,111,000 41,382,000 24,107,000  17,573,000 43,702,000 59,247,000  38,369,000 135,321,000 85,492,000  34,890,000    5,339,000    20,711,000 13,200,000 7,061,000               
          cash flows from investing activities
                                                   
          expenditures for property, plant and equipment
        -16,976,000 -21,136,000 -16,978,000 -18,480,000 -20,867,000 -28,207,000 -31,040,000 -14,760,000 -18,287,000 -26,480,000 -8,860,000 -13,826,000 -18,437,000 -13,302,000 -16,100,000 -8,177,000 -8,254,000 -9,027,000 -11,252,000 -8,716,000 -6,133,000 -8,241,000 -4,277,000 -7,216,000 -10,737,000 -15,626,000 -7,589,000 -5,751,000 -7,115,000 -9,863,000 -11,818,000 -9,122,000 -6,247,000 -10,253,000 -8,810,000 -2,468,000 -13,894,000  -32,130,000 -65,767,000 -104,290,000   
          proceeds from short-term investments
        73,819,000 73,583,000 56,858,000 90,004,000 64,561,000 73,836,000 135,615,000 100,878,000 96,509,000 29,135,000 175,505,000 88,707,000 99,151,000                              
          purchases of short-term investments
        -105,745,000 -78,696,000 -61,544,000 -61,244,000 -49,037,000 -80,266,000 -155,957,000 -34,689,000 -33,758,000 -28,939,000 -68,091,000 -133,660,000 -63,000,000 -97,525,000 -236,255,000 -89,311,000                           
          other investing activities
        3,422,000 835,000 -104,000 -183,000 72,000 -63,000 -169,000   -377,000 -38,000 -1,000 11,000 364,000 2,883,000 12,000 51,000 52,000 82,000 102,000 198,000 -360,000 65,000 120,000 179,000 59,000 -26,000 53,000 9,000 277,000 -3,000 20,000 95,000 324,000 -537,000 450,000 502,000  2,430,000 1,572,000 -514,000   
          net cash used by investing activities
        -45,480,000            -63,379,000 23,213,000 -51,014,000 -244,420,000 -97,514,000 -8,975,000 -11,170,000 -8,614,000 -5,935,000  -2,565,000 -7,096,000 -10,558,000  -7,554,000 -5,698,000 -7,106,000            -1,167,000 
          cash flows from financing activities
                                                   
          payments on other long-term debt
         -250,000 -5,701,000 -1,699,000 -1,624,000 -2,059,000 -1,061,000 -1,482,000 -1,443,000 -1,381,000 -1,355,000 -4,620,000 -2,180,000 -2,800,000 -2,043,000 -1,995,000 -6,912,000 -2,746,000 -2,206,000 -2,167,000 -3,353,000 -2,959,000 -13,986,000 -2,369,000 -2,042,000 -2,008,000 -1,982,000 -8,473,000 -1,610,000 -1,577,000 -1,538,000 -4,408,000 -1,647,000 -1,708,000 -1,760,000 -6,428,000 -4,225,000 -3,749,000 -4,014,000 -4,625,000 -3,014,000   
          payments on short-term financing
        -3,500,000 -4,907,000 -2,742,000 -4,048,000 -3,971,000 -5,526,000 -3,023,000 -4,468,000 -4,379,000 -4,408,000 -5,118,000 -5,049,000 -5,967,000 -5,434,000 -4,257,000 -4,229,000 -2,805,000 -5,056,000 -3,433,000 -3,641,000 -5,419,000 -1,763,000 -3,083,000 -3,059,000 -3,036,000 -2,858,000 -2,615,000 -2,641,000 -2,714,000 -3,251,000 -1,516,000 -3,658,000 -2,447,000 -2,334,000 -2,623,000 -2,805,000 -3,717,000 -3,862,000 -2,747,000 -2,063,000 -2,720,000  -12,000 
          taxes paid on equity awards
        -1,497,000 -29,000 -12,000 -1,170,000                 -262,000 -64,000 -254,000 -5,000 -690,000 -1,788,000 -4,000 -42,000 -184,000           
          other financing activities
        -190,000            -2,541,000  -2,000 1,871,000 -2,004,000  -164,000 -55,000 -36,000        -79,000      1,000 -1,000 -66,000       
          net cash used by financing activities
        -5,187,000  -8,469,000 -37,678,000 -6,765,000  -3,996,000 -74,455,000 -44,518,000                    -4,298,000      -69,000 -66,000 -65,000  -472,000     
          net increase in cash and cash equivalents
        1,130,000  22,337,000 -9,416,000 -5,200,000   87,811,000 27,491,000  1,752,000 -3,877,000 -14,820,000 44,134,000 -105,596,000 -129,068,000 172,155,000 49,289,000 15,230,000 3,393,000 -2,032,000  -14,419,000 19,030,000 14,692,000  8,812,000    -4,470,000             
          cash and cash equivalents at beginning of period
        19,511,000  20,230,000      63,769,000  82,144,000  16,264,000  22,791,000  26,048,000  33,619,000  60,017,000  -119,000 127,314,000   
          cash and cash equivalents at end of period
        20,641,000  22,337,000 -9,416,000 15,030,000      1,752,000 -3,877,000 48,949,000  -105,596,000 -129,068,000 254,299,000  15,230,000 3,393,000 14,232,000  -14,419,000 19,030,000 37,483,000  8,812,000 36,266,000 21,705,000  -4,470,000 18,549,000 28,667,000  -14,148,000 22,176,000 45,037,000  53,174,000 -16,693,000 39,529,000   
          adjustments to reconcile net income to net cash provided by operating activities:
                                                   
          write-downs of property, plant and equipment
         3,401,000 434,000 2,528,000 71,000                                       
          amortization of short-term investments
         168,000 -52,000                                         
          amortization of debt issuance costs, including discounts and premiums
                                                   
          loss on extinguishments of debt
                                                   
          cash provided (used) by changes in assets and liabilities:
                                                   
          net cash (used) provided by investing activities
            -5,271,000                                       
          proceeds from revolving debt facility
                          30,000,000           20,609,000 30,907,000 25,000,000   
          payments on revolving debt facility
                                       -51,516,000 -25,000,000   
          repurchases of 6.25% senior secured notes
         -7,425,000   -60,900,000 -31,316,000                                 
          payments of debt-related costs, including extinguishment costs
                     -385,000 -1,000 -352,000 -4,102,000                           
          proceeds from short-term financing
                                                  15,000 
          acquisition of treasury stock
         -2,599,000 3,000   2,304,000 -7,045,000 -7,163,000 -7,941,000 -646,000   -73,063,000 -86,648,000                             
          net cash (used) provided by financing activities
                 1,315,000                                  
          net increase in cash, cash equivalents and restricted cash
                                                   
          cash, cash equivalents and restricted cash at beginning of year
                                                   
          cash, cash equivalents and restricted cash at end of year
                                                   
          loss on extinguishment of debt
                                              
          payments of debt-related costs
              88,000 -560,000 -217,000                      -1,040,000             
          net cash from investing activities
                                                   
          (gain) on extinguishment of debt
                                                   
          amortization of short term investments
            -69,000  -1,102,000                                     
          net cash provided (used) by investing activities
                47,902,000 35,894,000 -8,702,000                                 
          proceeds from 6.25% senior secured notes
                                                   
          payments of costs to exchange redeemable preferred stocks for common stock
                         -5,287,000                          
          gain on extinguishment of debt
              -1,879,000 -1,134,000                                  
          amortization of intangible and other assets
              70,000   105,000 112,000   193,000 268,000 310,000 311,000 310,000 315,000 314,000 315,000 314,000 315,000 316,000 315,000 313,000 311,000 312,000 313,000 574,000 590,000 595,000 602,000           
          provision for impairment on property, plant and equipment
                                                   
          accrued payroll and benefits
                                                   
          net decrease in cash and cash equivalents
                                    -4,343,000    -4,952,000 -19,446,000   -14,980,000  53,174,000 -16,574,000 -87,785,000   
          cash, cash equivalents and restricted cash at beginning of period
              101,032,000                                   
          cash, cash equivalents and restricted cash at end of period
               87,811,000 128,523,000                                   
          gain associated with commodity contracts
                                                   
          net cash provided (used) by operating activities
                            12,711,000    -2,178,000           -502,000 -1,212,000 -1,258,000      
          proceeds from revolving debt facilities
                                                   
          payments on revolving debt facilities
                                                   
          payments on 9.625% senior secured notes
                                                   
          payments of dividends on non-redeemable preferred stocks
                                                   
          net proceeds from 6.25% senior secured notes
                      200,000,000                           
          net cash provided (used) by financing activities
                   -141,166,000 -10,688,000  -92,951,000 -19,969,000 184,177,000  -8,490,000 -5,863,000 -8,808,000    27,428,000  -4,345,000                8,204,000 
          adjustments to reconcile net income to net cash provided (used) by operating activities:
                                                   
          charge on extinguishments of debt
                                                   
          loss associated with commodity contracts
                                                   
          proceeds from vendor settlements associated with property, plant and equipment
                                                  
          proceeds from other long-term debt
                             30,000,000 10,000,000 2,570,000 3,389,000 1,035,000 15,000,000 795,000               
          net cash from financing activities
                              -17,193,000                     
          cash and cash equivalents at beginning of year
                                                   
          cash and cash equivalents at end of year
                                                   
          loss associated with assets held for sale
                                                   
          net proceeds from 9.625% senior secured notes
                                                 
          precious metals
                                                   
          net loss
                            -13,279,000 -21,692,000 -20,402,000 -365,000 -19,452,000 -27,714,000 -30,794,000 6,631,000 -11,540,000    -5,591,000           
          adjustments to reconcile net loss to net cash provided (used) by operating activities:
                                                   
          cash flows from continuing operating activities
                                                   
          adjustments to reconcile net loss to net cash provided (used) by continuing operating activities:
                                                   
          loss on sales of property and equipment
                                                   
          charge on extinguishment of debt
                                                   
          cash provided
                                                   
          other supplies, prepaid items and other
                                         441,000 -201,000    1,185,000 -903,000 342,000   
          other current and noncurrent liabilities
                                         -1,350,000 1,691,000    -1,037,000 3,102,000 3,681,000   
          net cash provided (used) by continuing operating activities
                                         -17,053,000          
          cash flows from continuing investing activities
                                                   
          proceeds from sales of property and equipment
                                                   
          proceeds from property insurance recovery associated with property, plant and equipment
                                     1,531,000           
          net proceeds from sale of discontinued operations
                                     2,730,000           
          net cash used by continuing investing activities
                                        -1,891,000    -13,392,000   -64,195,000 -104,804,000   
          cash flows from continuing financing activities
                                                   
          payments on senior secured notes
                                                 
          payments of debt-related costs, including extinguishment and modification costs
                                 -778,000                 
          payments of preferred stock modification costs
                                     -100,000             
          proceeds from exercises of stock options
                                             322,000 49,000   
          net cash from continuing financing activities
                                                   
          adjustments to reconcile net loss to net cash from operating activities:
                                                   
          adjustments to reconcile net loss to net cash from continuing operating activities:
                                                   
          income from discontinued operations, net of taxes
                                                   
          depreciation, depletion and amortization of property, plant and equipment
                                     16,752,000 16,848,000 18,930,000 17,736,000 16,655,000 16,179,000 17,047,000 17,115,000  16,862,000 12,939,000 11,679,000   
          loss on sales of businesses and other property and equipment
                                                   
          net cash from continuing operating activities
                                      5,436,000 32,127,000 1,217,000   15,154,000 7,787,000   10,151,000 14,093,000   
          proceeds from sales of businesses and other property and equipment
                                                   
          net cash provided (used) by continuing financing activities
                                           -9,234,000 -8,098,000 -102,771,000   3,005,000   
          cash flows of discontinued operations:
                                                   
          net cash used by operating activities
                                                   
          net cash used by discontinued operations
                                                   
          net proceeds from sales of property and equipment
                                                   
          adjustments to reconcile net income to net cash provided (used) by continuing operating activities:
                                                   
          impairment of goodwill
                                                   
          prepaid and accrued income taxes
                                     -48,000 179,000 63,000 880,000 466,000 31,000 -1,155,000 115,000  874,000 -1,434,000 858,000   
          net cash provided (used) by continuing investing activities
                                         -8,649,000 -5,628,000         
          proceeds from 9.625% senior secured notes, net of discount and fees
                                                 
          proceeds from other long-term debt, net of fees
                                             4,800,000 9,951,000   
          redemption of preferred stock
                                                  
          dividends paid on preferred stock
                                                   
          loss on sales of a business and other property and equipment
                                      -2,398,000    208,000         
          net proceeds from sale of businesses and other property and equipment
                                      6,013,000             
          net cash used by continuing financing activities
                                      -4,098,000 -5,117,000 -4,278,000           
          adjustments to reconcile net income to net cash from continuing operating activities:
                                                   
          payments of debt issuance costs
                                           -90,000   -67,000 -476,000   
          impairments of long-lived assets and goodwill
                                                   
          proceeds from current and noncurrent restricted cash and cash equivalents
                                                   
          deposits of current and noncurrent restricted cash and cash equivalents
                                                   
          proceeds from noncurrent restricted investments
                                                   
          proceeds from 12% senior secured notes, net of discount and fees
                                                   
          payments of debt modification and issuance costs
                                            -1,383,000      
          payments of debt extinguishment costs
                                                   
          proceeds from loans secured by cash value of life insurance policies
                                                   
          proceeds from issuance of redeemable preferred stocks, net of discount and fees
                                                   
          proceeds from issuance of common stock warrants, net of discount and fees
                                                   
          payments of issuance costs relating to preferred stocks and warrants
                                             -785,000   
          dividends paid on preferred stocks
                                                  
          net cash provided (used) by discontinued operations
                                           -568,000 -1,277,000 -1,422,000      
          net proceeds from sale (including an advance on a potential sale) of businesses and other property and equipment
                                                   
          deposits of restricted cash
                                                   
          income from discontinued operations, including taxes
                                                   
          net proceeds from sale of a business and other property and equipment
                                                   
          excess income tax benefit associated with stock-based compensation
                                                   
          impairment of natural gas properties
                                                   
          proceeds from noncurrent restricted cash and cash equivalents
                                                   
          dividends paid on convertible preferred stocks
                                                   
          net cash from discontinued operations
                                                   
          operating cash flows
                                                -79,000  -44,000 
          net income from discontinued operations
                                                   
          gains on property insurance recoveries associated with property, plant and equipment
                                                   
          impairment of long-lived assets
                                                   
          acquisition of working interests in natural gas properties
                                                   
          software and software development costs
                                                   
          purchases of noncurrent restricted investments
                                                   
          proceeds from 7.75% senior secured notes, net of pay off of secured term loan and fees
                                                   
          deposits of noncurrent restricted cash and cash equivalents
                                                   
          purchase of noncurrent restricted investments
                                                   
          proceeds from long-term debt, net of fees
                                                   
          payments on long-term debt
                                                   
          deferred gain on insurance recoveries
                                                   
          proceeds from senior secured notes, net of pay off of secured term loan and fees
                                                   
          payments on loans secured by cash value of life insurance policies
                                                   
          acquisition of redeemable preferred stock
                                                   
          purchase of short-term investments
                                                   
          proceeds from exercise of stock options
                                                   
          proceeds from sales of carbon credits
                                                   
          payments on contractual obligations—carbon credits
                                                   
          other assets
                                                  -8,000 
          deposits of current and noncurrent restricted cash
                                                   
          proceeds from secured term loan, net of fees
                                                   
          proceeds from modification of secured term loan, net of fees
                                                   
          payments associated with induced conversion of 5.5% convertible debentures
                                                   
          proceeds from property insurance recoveries associated with property, plant and equipment
                                                   
          supplemental cash flow information:
                                                   
          cash payments for income taxes, net of refunds
                                                   
          noncash investing and financing activities:
                                                   
          insurance claims receivable associated with property, plant and equipment
                                                   
          other assets, accounts payable and long-term debt associated with additions of property, plant and equipment
                                                   
          long-term debt associated with additions of capitalized internal-use software and software development
                                                   
          secured term loan extinguished
                                                   
          debt issuance costs incurred associated with senior secured notes
                                                   
          debt issuance costs written off associated with secured term loan
                                                   
          prepayment premium incurred associated with secured term loan
                                                   
          capital expenditures
        -16,976,000 -21,136,000 -16,978,000 -18,480,000 -20,867,000 -28,207,000 -31,040,000 -14,760,000 -18,287,000  -8,860,000 -13,826,000 -18,437,000  -16,100,000 -8,177,000 -8,254,000  -11,252,000    -4,277,000    -7,589,000 -5,751,000 -7,115,000               
          free cash flows
        34,821,000 -3,189,000 35,596,000 -315,000 -14,031,000 -24,231,000 -13,929,000 26,622,000 5,820,000  8,713,000 29,876,000 40,810,000  22,269,000 127,144,000 77,238,000  23,638,000    1,062,000    13,122,000 7,449,000 -54,000               
          losses on sales and disposals of property and equipment
                                                   
          amortization of other assets
                                                   
          provisions for losses on accounts receivable
                                                   
          benefit from (realization of) losses on inventory
                                                   
          benefit from (realization of) losses on firm sales commitments
                                                   
          benefit from impairment on long-lived assets
                                                   
          equity in earnings of affiliate
                                                   
          distributions received from affiliate
                                                   
          changes in fair value of commodities contracts
                                                   
          changes in fair value of interest rate contracts
                                                   
          losses on extinguishment of debt
                                                   
          expense associated with modification of secured term loan
                                                   
          expense associated with induced conversion of 5.5% convertible debentures
                                                   
          net gains on carbon credits
                                                   
          provisions for (recovery of) losses on accounts receivable
                                                   
          provisions for losses on inventory
                                                   
          commodities contracts
                                                   
          proceeds from (deposits of) restricted cash
                                                   
          payments on contractual obligations - carbon credits
                                                   
          acquisitions of 5.5% convertible debentures
                                                   
          purchase of treasury stock
                                                   
          net gain on carbon credits
                                                   
          depreciation of property, plant and equipment
                                                   
          amortization
                                                   
          benefit from (recovery of) losses on accounts receivable
                                                   
          benefit from losses on firm sales commitments
                                                   
          cash provided (used) by changes in assets and liabilities
                                                   
          accrued and prepaid income taxes
                                                   
          other assets and accounts payable associated with property, plant and equipment
                                                   
          debt issuance costs incurred associated with secured term loan
                                                   
          debt issuance costs written off associated with 5.5% debentures
                                                   
          accrued liabilities extinguished associated with 5.5% debentures
                                                   
          5.5% debentures converted to common stock
                                                   
          accrued contractual profit-sharing obligation
                                                   
          deferred revenue on product sales
                                                   
          payments on contractual obligations — carbon credits
                                                   
          gain on sales and disposals of property and equipment
                                                   
          payments on contractual obligations – carbon credits
                                                   
          other assets and accounts payable associated with additions of property, plant and equipment
                                                   
          accounts payable associated with 5.5% debentures
                                                   
          losses (gain) on extinguishment of debt
                                                   
          gain on property insurance recoveries associated with property, plant and equipment
                                                   
          provisions for (realization of) losses on inventory
                                                   
          deferred rent expense
                                                   
          purchases of treasury stock
                                                   
          cash flows from continuing operating activities:
                                                   
          realization of losses on firm sales commitments
                                                   
          cash flows from continuing investing activities:
                                                   
          cash flows from continuing financing activities:
                                                   
          acquisition of 5.5% convertible debentures
                                                   
          receivable associated with a property insurance claim
                                                   
          accounts payable and long-term debt associated with property, plant and equipment
                                                   
          current other assets, accounts payable and long-term debt associated with property, plant and equipment
                                                   
          adjustments to reconcile net income to net cash used by continuing operating activities:
                                                   
          gains on sales of property and equipment
                                                   
          changes in fair value of interest rate caps
                                                   
          other supplies and prepaid items
                                                   
          net cash used by continuing operating activities
                                                   
          proceeds from restricted cash
                                                   
          payments on short-term financing and drafts payable
                                                   
          acquisition of common stock
                                                   
          excess income tax benefit on stock options exercised
                                                   
          accounts payable associated with purchases of property, plant and equipment
                                                   
          debt issuance costs associated with 7% convertible debentures converted to common stock
                                                   
          7% convertible debentures converted to common stock
                                                   
          series 2 preferred stock converted to common stock of which 12,303,000 was charged to accumulated deficit
                                                   
          trade receivables
                                                   
          insurance claims
                                                   
          allowance for doubtful accounts
                                                   
          balance at beginning of period
                                                   
          benefit from (realization of) losses
                                                   
          write-offs/disposals
                                                   
          balance at end of period
                                                   
          add: charged to costs and expenses
                                                   
          deduct: costs incurred
                                                   
          accrued income, property and other taxes
                                                   
          deferred revenue on extended warranty contracts
                                                   
          accrued commissions
                                                   
          accrued death benefits
                                                   
          accrued warranty costs
                                                   
          accrued insurance
                                                   
          accrued contractual manufacturing obligations
                                                   
          accrued precious metals costs
                                                   
          accrued executive benefits
                                                   
          less noncurrent portion
                                                   
          current portion of accrued and other liabilities
                                                   
          working capital revolver loan due 2012
                                                   
          5.5% convertible senior subordinated notes due 2012
                                                   
          secured term loan due 2012
                                                   
          other, with current interest rates of 5.99% to 9.36%, most of which is secured by machinery, equipment and real estate
                                                   
          less current portion of long-term debt
                                                   
          long-term debt due after one year
                                                   
          ·
                                                   
          description
                                                   
          interest rate cap contracts
                                                   
          exchange-traded futures contracts
                                                   
          total
                                                   
          total gains included in earnings:
                                                   
          cost of sales
                                                   
          interest expense
                                                   
          change in unrealized gains relating to contracts still held at march 31, 2008:
                                                   
          liabilities and stockholders’ equity
                                                   
          current liabilities:
                                                   
          short-term financing and drafts payable
                                                   
          accrued and other liabilities
                                                   
          current portion of long-term debt
                                                   
          total current liabilities
                                                   
          long-term debt
                                                   
          noncurrent accrued and other liabilities:
                                                   
          contingencies
                                                   
          stockholders' equity:
                                                   
          series b 12% cumulative, convertible preferred stock, 100 par value; 20,000 shares issued and outstanding
                                                   
          series d 6% cumulative, convertible class c preferred stock, no par value; 1,000,000 shares issued
                                                   
          common stock, .10 par value; 75,000,000 shares authorized, 24,590,810 shares issued
                                                   
          capital in excess of par value
                                                   
          accumulated other comprehensive loss
                                                   
          accumulated deficit
                                                   
          less treasury stock at cost:
                                                   
          common stock, 3,648,518 shares
                                                   
          total stockholders' equity
                                                   
          net income (income) from discontinued operations
                                                   
          realization of losses on inventory
                                                   
          benefit from (realization and reversal of) losses on firm sales commitments
                                                   
          change in fair value of interest rate caps
                                                   
          purchase of interest rate cap contracts
                                                   
          proceeds from 5.5% convertible debentures, net of fees
                                                   
          proceeds from 7% convertible debentures, net of fees
                                                   
          acquisition of 10-3/4% senior unsecured notes
                                                   
          proceeds from short-term financing and drafts payable
                                                   
          acquisition of non-redeemable preferred stock
                                                   
          debt issuance costs
                                                   
          accounts payable and other long-term debt associated with purchases of property, plant and equipment
                                                   
          gains on property insurance recoveries
                                                   
          provisions for losses on accounts receivables
                                                   
          realization and reversal of losses on inventory
                                                   
          provisions for impairment on long-lived assets
                                                   
          other accrued and noncurrent liabilities
                                                   
          proceeds from property insurance recoveries
                                                   
          acquisition of 10 3/4 % senior unsecured notes
                                                   
          purchases of preferred stock
                                                   
          net proceeds from issuance of common stock
                                                   
          net increase in cash
                                                   
          long-term and other debt issued for property, plant and equipment
                                                   
          cash flows provided (used) by continuing operating activities
                                                  -7,101,000 
          cash flows from investing activities:
                                                   
          proceeds from sale of property and equipment
                                                  31,000 
          net change in restricted cash
                                                   
          cash flows from financing activities:
                                                   
          proceeds from revolving debt
                                                   
          payments on revolving debt
                                                  -236,000 
          payment on long-term debt
                                                   
          net change in due to/from lsb and affiliates
                                                   
          advances to/from affiliates
                                                  8,437,000 
          net decrease in cash from all activities
                                                  -108,000 
          cash at the beginning of period
                                                  201,000 
          cash at the end of period
                                                  93,000 
          cash flows used by continuing operating activities
                                                   
          payments on long-term and other debt
                                                   
          long-term borrowings
                                                   
          net change in due to/from subsidiaries
                                                   
          net proceeds from issuance of common stock and warrants
                                                   
          cash at the beginning of year
                                                   
          cash at the end of year