7Baggers

Cadiz Inc
(NASDAQ:CDZI) 

CDZI stock logo

Cadiz Inc. operates as a natural resources development company in the United States. It engages in the water resource and agricultural development activities in San Bernardino County properties. The company owns approximately 35,000 acres of land in the Cadiz and Fenner valleys of eastern San Bernar...

Founded: 1983
Full Time Employees: 9
Sector: Utilities
Industry: Utilities-Regulated Water

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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 2010-12-31 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 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 
                                                                                  
      total revenues
    1,632,000 5,084,000 4,149,000 4,126,000 2,954,000 4,750,000 3,224,000 513,000 1,121,000 684,000 368,000 809,000 130,000 574,000 599,000 185,000 142,000 142,000 142,000 141,000 139,000  139,000 148,000 114,000 111,000 110,000 111,000 109,000 111,000 112,000 109,000 108,000  111,000 108,000 108,000                                          
      yoy
    -44.75% 7.03% 28.69% 704.29% 163.51% 594.44% 776.09% -36.59% 762.31% 19.16% -38.56% 337.30% -8.45% 304.23% 321.83% 31.21% 2.16%  2.16% -4.73% 21.93%  26.36% 33.33% 4.59% 0.00% -1.79% 1.83% 0.93%  0.90% 0.93% 0.00%                                              
      qoq
    -67.90% 22.54% 0.56% 39.68% -37.81% 47.33% 528.46% -54.24% 63.89% 85.87% -54.51% 522.31% -77.35% -4.17% 223.78% 30.28% 0.00% 0.00% 0.71% 1.44%   -6.08% 29.82% 2.70% 0.91% -0.90% 1.83% -1.80% -0.89% 2.75% 0.93%   2.78% 0.00%                                           
      costs and expenses:
                                                                                  
      cost of sales
    1,207,000 3,405,000 3,015,000 2,665,000 2,078,000 3,033,000 2,409,000 852,000 1,004,000 1,405,000 692,000 768,000                              43,000 291,000   75,000 282,000   263,000 292,000   226,000 293,000 2,000  725,000 266,000 18,000 432,000 671,000 256,000   754,000 247,000  101,000 889,000 192,000 4,000 13,000 218,000   348,000  
      general and administrative
    6,877,000 8,716,000 5,726,000 6,935,000 8,107,000 8,035,000 5,275,000 6,305,000 4,730,000 4,419,000 5,127,000 5,320,000 3,953,000 4,431,000 3,770,000 3,405,000 3,806,000 3,843,000 4,202,000 6,375,000 3,233,000  2,527,000 3,098,000 3,977,000 2,958,000 2,998,000 3,285,000 2,924,000 4,038,000 2,536,000 2,300,000 2,528,000 4,056,000 2,456,000 2,141,000 4,150,000 2,357,000 1,977,000 2,641,000 2,355,000 3,795,000 3,515,000 3,724,000 2,675,000 2,760,000 2,335,000 2,401,000 2,588,000 3,835,000 2,934,000 2,811,000 3,884,000 3,876,000 2,965,000 2,895,000 2,823,000 2,797,000 2,467,000 2,218,000 2,965,000 2,686,000 2,023,000 2,015,000 4,077,000 2,251,000 1,963,000 3,179,000 2,052,000 2,309,000 2,349,000 2,568,000 3,928,000 3,573,000 3,284,000 1,356,000 1,775,000  
      depreciation
    383,000 355,000 304,000 303,000 302,000 307,000 307,000 305,000 295,000 305,000 308,000 305,000 329,000 181,000 180,000 172,000 121,000 110,000 107,000 103,000 103,000  106,000 96,000 79,000 65,000 68,000 66,000 66,000 64,000 64,000 64,000 66,000 62,000 69,000 72,000 71,000 73,000 73,000 73,000 73,000 72,000 72,000 65,000 61,000 64,000 63,000 63,000 64,000 63,000 63,000 64,000 64,000 65,000 97,000 95,000 93,000 92,000 92,000 92,000 89,000 81,000 81,000 83,000 99,000 86,000 85,000 85,000 86,000 64,000 87,000        
      total costs and expenses
    8,467,000 12,476,000 9,045,000 9,903,000 10,487,000 11,375,000 7,991,000 7,462,000 6,029,000 6,129,000 6,127,000 6,393,000 4,282,000 5,516,000 5,043,000 3,577,000 3,927,000 3,953,000 4,309,000 6,478,000 3,336,000  2,633,000 3,194,000 4,056,000 3,023,000 3,066,000 3,351,000 2,990,000 4,102,000 2,600,000 2,364,000 2,594,000 4,118,000 2,525,000 2,213,000 4,221,000 2,430,000 2,050,000 2,714,000 2,428,000 3,910,000 3,878,000 3,789,000 2,736,000 2,899,000 2,680,000 2,464,000 2,652,000 4,161,000 3,289,000 2,875,000 3,948,000 4,167,000 3,355,000 2,992,000 2,916,000 3,614,000 2,825,000 2,328,000 3,486,000 3,438,000 2,360,000 2,098,000 4,176,000 3,091,000 2,295,000 3,264,000 2,239,000 3,283,000 2,628,000 2,657,000 4,025,000 3,855,000 3,405,000 1,395,000 2,160,000  
      operating income
    -6,835,000 -7,392,000 -4,896,000 -5,777,000 -7,533,000 -6,625,000 -4,767,000 -6,949,000 -4,908,000 -5,445,000 -5,759,000 -5,584,000 -4,152,000 -4,942,000 -4,444,000 -3,392,000 -3,785,000 -3,811,000 -4,167,000 -6,337,000 -3,197,000  -2,494,000 -3,046,000 -3,942,000 -2,912,000 -2,956,000 -3,240,000 -2,881,000 -3,991,000 -2,488,000 -2,255,000 -2,486,000 -4,008,000 -2,414,000 -2,105,000 -4,113,000 -2,321,000 -1,930,000 -2,606,000 -2,353,000 -3,889,000 -3,651,000 -3,751,000 -2,718,000 -2,883,000 -2,375,000 -2,453,000 -2,648,000 -4,050,000 -3,107,000 -2,871,000 -3,944,000 -4,129,000 -3,068,000 -2,986,000 -2,885,000 -3,213,000 -2,704,000 -2,288,000 -3,029,000 -2,696,000 -2,086,000 -2,094,000 -4,173,000 -2,469,000 -2,157,000 -3,245,000 -2,210,000 -2,571,000 -2,381,000 -2,641,000 -4,008,000 -3,792,000 -3,399,000 -1,390,000 -1,808,000  
      yoy
    -9.27% 11.58% 2.71% -16.87% 53.48% 21.67% -17.23% 24.44% 18.21% 10.18% 29.59% 64.62% 9.70% 29.68% 6.65% -46.47% 18.39%  67.08% 108.04% -18.90%  -15.63% -5.99% 36.83% -27.04% 18.81% 43.68% 15.89% -0.42% 3.07% 7.13% -39.56% 72.68% 25.08% -19.22% 74.80% -40.32% -47.14% -30.53% -13.43% 34.89% 53.73% 52.91% 2.64% -28.81% -23.56% -14.56% -32.86% -1.91% 1.27% -3.85% 36.71% 28.51% 13.46% 30.51% -4.75% 19.18% 29.63% 9.26% -27.41% 9.19% -3.29% -35.47% 88.82% -3.97% -9.41% 22.87% -44.86% -32.20% -29.95% 90.00% 121.68%      
      qoq
    -7.54% 50.98% -15.25% -23.31% 13.71% 38.98% -31.40% 41.59% -9.86% -5.45% 3.13% 34.49% -15.99% 11.21% 31.01% -10.38% -0.68% -8.54% -34.24% 98.22%   -18.12% -22.73% 35.37% -1.49% -8.77% 12.46% -27.81% 60.41% 10.33% -9.29% -37.97% 66.03% 14.68% -48.82% 77.21% 20.26% -25.94% 10.75% -39.50% 6.52% -2.67% 38.01% -5.72% 21.39% -3.18% -7.36% -34.62% 30.35% 8.22% -27.21% -4.48% 34.58% 2.75% 3.50% -10.21% 18.82% 18.18% -24.46% 12.35% 29.24% -0.38% -49.82% 69.02% 14.46% -33.53% 46.83% -14.04% 7.98% -9.84% -34.11% 5.70% 11.56% 144.53% -23.12%   
      operating margin %
    -418.81% -145.40% -118.00% -140.01% -255.01% -139.47% -147.86% -1354.58% -437.82% -796.05% -1564.95% -690.23% -3193.85% -860.98% -741.90% -1833.51% -2665.49% -2683.80% -2934.51% -4494.33% -2300.00% NaN% -1794.24% -2058.11% -3457.89% -2623.42% -2687.27% -2918.92% -2643.12% -3595.50% -2221.43% -2068.81% -2301.85% -Infinity% -2174.77% -1949.07% -3808.33% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity%  
      interest expense
    -2,465,000 -2,399,000 -2,173,000 -1,951,000 -2,057,000 -1,997,000 -2,023,000 -1,921,000 -1,939,000 -1,307,000 -1,173,000 -1,338,000 -1,504,000 -2,119,000 -2,097,000 -2,055,000 -1,991,000 -1,986,000 -2,000,000 -4,858,000 -2,542,000  -1,920,000 -1,674,000 -3,572,000 -4,166,000 -4,369,000 -4,303,000 -4,234,000 -4,103,000 -3,829,000 -3,822,000 -3,484,000 -3,066,000 -3,577,000 -7,963,000 -3,113,000 -4,402,000 -3,244,000 -3,038,000 -4,191,000 -3,326,000 -2,313,000 -2,238,000 -2,193,000 -2,222,000 -2,190,000 -2,061,000 -2,045,000 -1,929,000 -1,689,000 -1,589,000 -2,437,000 -1,996,000 -1,665,000 -1,596,000 -1,560,000 -1,535,000 -1,451,000 -1,374,000 -1,343,000 -1,560,000 -1,092,000 -1,049,000 -1,033,000 -1,014,000 -976,000 -1,140,000 -1,184,000 -1,175,000 -1,103,000 -1,054,000 -970,000 -892,000 -818,000 -765,000 -763,000  
      gain on derivative liability
    667,000            130,000                                                                  
      income before income taxes
    -8,633,000 -9,753,000 -7,069,000 -7,728,000 -9,590,000 -8,622,000 -6,790,000 -8,870,000 -6,847,000 -6,752,000 -6,932,000 -7,062,000 -10,689,000 -7,061,000 -6,541,000 -5,447,000 -5,776,000 -5,797,000 -7,566,000 -11,195,000 -5,739,000  -4,414,000 -4,719,000 -19,886,000 -7,041,000 -7,258,000 -7,474,000 -7,259,000 -8,028,000 -6,240,000 -6,029,000 -5,970,000 -7,074,000 -5,991,000 -13,569,000 -7,226,000 -6,723,000 -5,174,000 -5,644,000 -8,794,000 -7,215,000 -5,964,000 -5,989,000 -4,841,000 -5,105,000 -4,565,000 -4,514,000 -4,693,000 -5,979,000 -4,796,000 -4,460,000 -7,436,000 -6,125,000 -4,733,000 -4,582,000 -4,445,000 -3,020,500 -4,103,000 -3,727,000 -4,251,000 -2,881,750 -3,178,000 -3,143,000 -5,206,000 -2,728,000 -3,133,000 -4,385,000 -3,394,000 -3,039,250 -3,484,000 -3,695,000 -4,978,000 -2,235,750 -4,217,000 -2,155,000 -2,571,000  
      income tax expense
    -3,000 -3,000 -3,000 -2,000 -3,000 -3,000 -3,000 -2,000 -3,000 -3,000 -4,000 -2,000 -2,000 -2,000 -2,000 -1,000 -2,000 -5,000 -2,000  -2,000  -2,000 -1,000 -2,000 -10,000 1,000 2,000 1,000 2,000  3,000 1,000 1,000 1,000 1,000 1,000                                          
      net loss and comprehensive loss
    -8,636,000 -9,756,000 -7,072,000 -7,730,000 -9,593,000 -8,625,000 -6,793,000 -8,872,000 -6,850,000 -6,755,000 -6,936,000 -7,064,000 -10,691,000 -6,852,000 -6,545,000 -5,483,000 -5,912,000 -5,904,000 -7,839,000                                                            
      less: preferred stock dividend
    -1,288,000 -954,500 -1,265,000 -1,288,000 -1,265,000 -954,500 -1,265,000 -1,288,000 -1,265,000 -954,500 -1,265,000 -1,288,000 -1,265,000 -954,500 -1,265,000 -1,288,000 -1,265,000                                                              
      net loss and comprehensive loss applicable to common stock
    -9,924,000 -11,021,000 -8,337,000 -9,018,000 -10,858,000 -9,913,000 -8,058,000 -10,160,000 -8,115,000 -8,043,000 -8,201,000 -8,352,000 -11,956,000 -8,140,000 -7,810,000 -6,771,000 -7,177,000 -7,192,000 -9,288,000 -11,562,000 -5,944,000  -4,493,000 -4,793,000 -20,514,000 -5,545,000 -7,444,000 -7,476,000 -7,260,000 -4,560,750 -6,240,000 -6,032,000 -5,971,000 -6,697,250 -5,992,000 -13,570,000 -7,227,000 -4,903,750 -5,175,000 -5,645,000 -8,795,000 -4,199,250 -5,965,000 -5,990,000 -4,842,000 -3,443,750 -4,566,000 -4,515,000 -4,694,000 -4,174,250 -4,797,000 -4,461,000 -7,439,000                          
      basic and diluted net loss per common share
    -120 -130 -100 -110 -140 -140 -120 -150 -120 -120 -120 -130 -190 -150 -150 -130 -160 -160 -220 -300 -160  -130 -140 -660 -212.5 -280 -280 -290 -192.5 -260 -250 -260 -297.5 -260 -600 -330 -267.5 -280 -310 -490 -237.5 -330 -340 -270 -212.5 -280 -280 -290 -270 -310 -290 -480 -222.5 -310 -300 -290 -217.5 -290 -270 -310 -210 -230 -230 -380 -217.5 -250 -350 -270 -255 -290 -310 -420 -190 -350 -180 -220  
      basic and diluted weighted-average shares outstanding
    83,516,000 81,064,000 82,127,000 81,939,000 77,208,000 68,847,000 68,020,000 67,771,000 66,997,000 65,656,000 66,611,000 66,606,000 62,638,000 49,871,000 50,793,000 50,770,000 44,433,000 40,561,000 41,855,000 39,099,000 37,834,000 34,188,000 35,036,000 34,798,000 31,113,000  26,970,000 26,479,000 25,327,000  24,451,000 23,883,000 23,075,000  22,857,000 22,451,000 22,097,000  18,809,000 17,949,000 17,897,000  17,822,000 17,725,000 17,707,000  16,186,000 16,172,000 16,166,000  15,453,000 15,453,000 15,448,000  15,439,000 15,439,000 15,436,000  14,161,000 13,957,000 13,808,000  13,678,000 13,678,000 13,655,000  12,649,000 12,600,000 12,510,000  11,958,000 11,958,000 11,957,000  11,906,000 11,889,000 11,680,000  
      loss on derivative liability
               -350,000                                                                   
      loss on early extinguishment of debt
                -5,331,000                                                                  
      loss from equity-method investments
                 -42,750 -2,000 -35,000 -134,000 -102,000 -271,000 -366,000 -203,000  -77,000 -73,000 -626,000 -675,000 185,000                                                    
      interest income
               210,000 168,000           1,000 22,000 37,000 67,000 69,000 53,000 66,000 77,000 48,000                                               
      cost of goods sold
                 290,750 1,163,000                                                                
      loss on extinguishment of debt
                      -1,399,000      -12,394,000                                                      
      less: preferred stock dividend requirements
                     4,186,000 -1,449,000                                                            
      tax expense
                       -1,000                                                           
      debt conversion expense
                                -197,000                                                  
      loss on extinguishment of debt and debt refinancing
                                       -3,501,000     -2,250,000            -1,055,000                          
      revenues
                                     81,750    75,750 120,000 108,000 75,000 70,750 227,000 38,000 18,000 80,000 305,000 11,000 4,000 47,500 182,000 4,000 4,000 81,000 287,000 6,000 31,000 154,500 121,000 40,000 457,000 70,250 274,000 4,000 3,000 46,500 138,000 19,000 29,000 70,000 247,000 16,000 17,000 90,750 6,000 5,000 352,000  
      income tax provision
                                         750 1,000 1,000 1,000 750 1,000 1,000 1,000 750 1,000 1,000 1,000 1,250 1,000 1,000 3,000 2,000 3,000 2,000 3,000 1,250 2,000 1,000 2,000 750 1,000 1,000 1,000 750 1,000 1,000 1,000 1,500 2,000 3,000 1,000 2,250 1,000 3,000 5,000  
      other income
                                                70,000              52,000  121,000      -976,000 -1,140,000      2,344,000     
      net loss applicable to common stock
                                                         -3,442,000 -4,736,000 -4,584,000 -4,448,000 -4,750,000 -4,105,000 -3,728,000 -4,253,000 -4,369,000 -3,179,000 -3,144,000 -5,207,000    -3,395,000 -3,746,000 -3,486,000 -3,698,000 -4,979,000 -4,681,000 -4,218,000 -2,158,000 -2,576,000  
      other expense
                                                               -65,000                   
      net income
                                                                     -2,728,750 -3,134,000 -4,386,000 -3,395,000 -3,746,000 -3,486,000 -3,698,000 -4,979,000 -4,681,000 -4,218,000 -2,158,000 -2,576,000  
      yoy
                                                                     -27.16% -10.10% 18.60% -31.81% -19.97% -17.35% 71.36% 93.28%      
      qoq
                                                                     -12.93% -28.55% 29.19% -9.37% 7.46% -5.73% -25.73% 6.37% 10.98% 95.46% -16.23%   
      net income margin %
    0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity%  
      net loss available to common stockholders
                                                                     -2,728,750 -3,134,000 -4,386,000           
      other (expense)
                                                                        -1,184,000  -1,103,000 -1,054,000 -970,000  -818,000 -765,000 -763,000  
      depreciation and amortization
                                                                           85,000 84,000 64,000 121,000 39,000 37,000  
      change in fair value of derivative liability
                                                                                  
    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 2018-06-30 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 2010-12-31 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 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 
                                                                                    
        assets
                                                                                    
        current assets:
                                                                                    
        cash and cash equivalents
      16,535,000 8,599,000 4,430,000 13,205,000 21,569,000 17,292,000 3,326,000 10,102,000 19,212,000 4,502,000 13,306,000 19,237,000 26,277,000 9,997,000 6,957,000 13,239,000 18,819,000 10,965,000 18,575,000 11,186,000 18,671,000 7,290,000 7,502,000 5,568,000 10,518,000 15,682,000 15,272,000 19,481,000 16,235,000 12,558,000 17,667,000 20,237,000 8,577,000 13,030,000 16,055,000 19,434,000 9,407,000 12,172,000 3,893,000 5,918,000 2,103,000 2,690,000 6,395,000 10,606,000 13,548,000 16,206,000 3,365,000 5,311,000 7,450,000 11,887,000 5,141,000 7,219,000 11,051,000 1,685,000 1,373,000 4,016,000 6,861,000 11,370,000 3,452,000 2,980,000 2,811,000 5,911,000 2,992,000 4,621,000 6,175,000 8,878,000 1,425,000 1,167,000 1,456,000 2,014,000 2,732,000 4,258,000 6,697,000 8,921,000 2,340,000 4,098,000 5,632,000 10,397,000 
        accounts receivable
      4,736,000 5,613,000 3,647,000 4,090,000 4,968,000 4,586,000 3,243,000 1,619,000 1,581,000 904,000 410,000 880,000 225,000 454,000 546,000 154,000 124,000 270,000 83,000 66,000 18,000 55,000 96,000 138,000 76,000 49,000 93,000 108,000 59,000 38,000 106,000 106,000 38,000 36,000 56,000 50,000 84,000 39,000 66,000 58,000 38,000 187,000 283,000 95,000 69,000 239,000 530,000 243,000 301,000 291,000 356,000 89,000 44,000 260,000 372,000 166,000 137,000 139,000 144,000 24,000 181,000 277,000 283,000 45,000 98,000 175,000 113,000 70,000 39,000 66,000 202,000 21,000 31,000 20,000 29,000 15,000 45,000 301,000 
        inventories
      1,468,000 1,138,000 2,795,000 3,011,000 3,052,000 3,020,000 4,346,000 4,497,000 2,756,000 2,106,000 2,128,000 1,165,000   335,000                             184,000 105,000  68,000 205,000 111,000  217,000 298,000 147,000  316,000        235,000 270,000 88,000  266,000    459,000        
        prepaid expenses and other current assets
      978,000 701,000 845,000 733,000 1,000,000 888,000 1,090,000 1,006,000 993,000 508,000 782,000 613,000 1,690,000 696,000 814,000 910,000 793,000 691,000 737,000 1,235,000 818,000  635,000 629,000 632,000  523,000 572,000 652,000  535,000 604,000 702,000  525,000                                            
        total current assets
      23,717,000 16,051,000 11,717,000 21,039,000 30,589,000 25,786,000 12,005,000 17,224,000 24,542,000 8,020,000 16,626,000 23,183,000 29,457,000 12,435,000 9,917,000 15,591,000 21,001,000 13,214,000 20,844,000 12,487,000 19,507,000 8,036,000 8,233,000 6,335,000 11,226,000 16,117,000 15,888,000 20,161,000 16,946,000 13,004,000 18,308,000 20,947,000 9,317,000 13,477,000 16,636,000 20,000,000 10,154,000 15,602,000 7,414,000 6,307,000 2,703,000 3,186,000 7,171,000 11,426,000 14,441,000 16,791,000 4,446,000 6,162,000 8,399,000 12,528,000 6,185,000 8,093,000 11,912,000 2,349,000 3,271,000 5,696,000 8,778,000 12,113,000 4,334,000 3,740,000 3,630,000 6,487,000 3,779,000 5,263,000 6,803,000 9,415,000 2,238,000 3,498,000 5,169,000 7,087,000 3,974,000 5,155,000 7,477,000 9,157,000 11,452,000 13,289,000 14,607,000 10,941,000 
        property, plant, equipment and water programs
      96,380,000 95,384,000 93,675,000 92,605,000 92,105,000 88,362,000 86,760,000 87,034,000 87,045,000 87,217,000 85,536,000 85,439,000 85,199,000 84,138,000 80,771,000 80,509,000 79,381,000 78,890,000 77,579,000 76,098,000 53,704,000 53,481,000 52,682,000 52,447,000 51,626,000 49,947,000 47,590,000 47,356,000 46,923,000 46,619,000 46,302,000 46,019,000 45,780,000 45,269,000 44,724,000 44,659,000 44,239,000 44,182,000 44,255,000 44,328,000 44,401,000 44,474,000 44,546,000 43,952,000 43,596,000 43,640,000 43,655,000 43,707,000 43,756,000 43,820,000 43,883,000 43,946,000 44,010,000 44,074,000 44,196,000 43,667,000 42,458,000 41,886,000 40,822,000 39,990,000 38,879,000 38,315,000 37,014,000 36,764,000 36,819,000 36,613,000 35,603,000 35,680,000 35,755,000 35,784,000 35,868,000 35,940,000 36,008,000 36,032,000 35,982,000 35,290,000 35,154,000 35,190,000 
        long-term deposit/prepaid expenses
      420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 420,000 3,000,000 3,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000                                                 
        goodwill
      5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 5,714,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 3,813,000 
        right-of-use asset
      3,299,000 3,394,000 3,485,000 3,575,000 3,660,000 3,746,000 2,186,000 2,221,000 2,254,000 431,000 463,000 494,000 524,000 553,000  3,269,000 3,275,000 3,281,000 3,287,000 3,294,000 3,301,000                                                          
        long-term restricted cash
      2,759,000 2,759,000 2,759,000 2,759,000 2,759,000 134,000 134,000 134,000 134,000 134,000 134,000 134,000 1,232,000 2,497,000 3,785,000 5,050,000 6,338,000 7,603,000 8,891,000                                                            
        other assets
      13,831,000 17,192,000 10,236,000 10,267,000 10,329,000 10,332,000 5,334,000 5,365,000 5,398,000 5,438,000 5,562,000 5,473,000 5,001,000 5,030,000 4,510,000 4,538,000 4,567,000 4,296,000 4,324,000 4,487,000 4,936,000 4,679,000 4,299,000 4,339,000 4,378,000 4,118,000 4,157,000 4,196,000 4,247,000 3,873,000 3,901,000 3,930,000 3,959,000 3,946,000 3,716,000 3,745,000 3,773,000 3,502,000 3,531,000 3,674,000 3,588,000 3,317,000 3,345,000 3,374,000 3,403,000 3,131,000 3,159,000 3,216,000 3,216,000 2,945,000 2,975,000 3,118,000 3,152,000 282,000 213,000 539,000 384,000 186,000 352,000 365,000 417,000 321,000 416,000 427,000 436,000 478,000 536,000 592,000 706,000 728,000 522,000 541,000 553,000 570,000 587,000 603,000 368,000 382,000 
        total assets
      146,120,000 140,914,000 128,006,000 136,379,000 145,576,000 134,494,000 112,553,000 118,112,000 125,507,000 107,374,000 114,455,000 120,857,000 127,547,000 110,787,000 104,122,000 114,097,000 119,737,000 112,493,000 120,107,000 101,643,000 89,549,000 74,363,000 73,374,000 70,932,000 74,071,000 76,724,000 73,519,000 77,526,000 73,929,000 69,309,000 72,324,000 74,709,000 62,869,000 66,505,000 68,889,000 72,217,000 61,979,000 67,099,000 59,013,000 58,122,000 54,505,000 55,416,000 59,526,000 63,284,000 66,032,000 68,212,000 55,973,000 57,857,000 60,197,000 64,174,000 57,978,000 60,148,000 64,116,000 50,518,000 51,493,000 53,715,000 55,433,000 57,998,000 49,321,000 47,908,000 46,739,000 48,936,000 45,022,000 46,267,000 47,871,000 50,319,000 42,190,000 43,583,000 45,443,000 47,412,000 44,177,000 45,449,000 47,851,000 49,572,000 51,834,000 52,995,000 53,942,000 50,326,000 
        liabilities and stockholders’ equity
                                                                                    
        current liabilities:
                                                                                    
        accounts payable
      5,339,000 3,783,000 1,593,000 2,319,000 2,107,000 2,261,000 1,787,000 1,901,000 2,700,000 1,245,000 1,626,000 1,163,000 1,404,000 1,107,000 462,000 633,000 1,095,000 286,000 579,000 117,000 177,000 548,000 438,000 1,075,000 961,000 194,000 666,000 1,086,000 1,038,000 225,000 1,086,000 649,000 1,168,000 411,000 418,000 642,000 853,000 439,000 659,000 246,000 504,000 309,000 553,000 624,000 615,000 302,000 584,000 222,000 87,000 833,000 963,000 370,000 508,000 957,000 2,092,000 756,000 855,000 1,069,000 863,000 891,000 855,000 358,000 380,000 117,000 192,000 499,000 232,000 22,000 71,000 247,000 440,000 456,000 747,000 408,000 524,000 343,000 381,000 444,000 
        accrued liabilities
      2,902,000 2,370,000 5,593,000 4,521,000 7,026,000 7,997,000 1,987,000 2,309,000 2,108,000 1,170,000 1,184,000 1,623,000 1,070,000 1,545,000 907,000 1,582,000 1,539,000 808,000 2,481,000 2,156,000 2,066,000 674,000 863,000 1,026,000 975,000 4,536,000 927,000 1,369,000 1,053,000 2,070,000 889,000 972,000 668,000 2,281,000 597,000 5,799,000 739,000 3,953,000 3,911,000 1,164,000 2,379,000 1,665,000 1,786,000 1,955,000 1,333,000 1,580,000 896,000 1,188,000 1,184,000 1,738,000 1,224,000 850,000 1,769,000 1,395,000 2,126,000 2,407,000 1,406,000 1,049,000 918,000 1,029,000 650,000 1,518,000 727,000 613,000 579,000 829,000 513,000 1,207,000 749,000 775,000 866,000 641,000 954,000 744,000 1,282,000 811,000 524,000 380,000 
        current portion of long-term debt
      29,000 51,000 71,000 92,000 101,000 120,000 138,000 155,000 171,000 182,000 193,000 128,000 131,000 140,000 148,000 57,000 82,000 107,000 134,000 43,000 47,000 51,000 54,000 17,000 20,000 31,000 42,000 53,000 60,000 59,000 58,000 57,000 57,000  1,378,000 1,398,000 1,503,000  42,564,000 167,000 49,000  36,933,000 36,194,000 35,441,000  11,000 11,000 11,000  11,000 11,000 11,000  11,000                        
        derivative liabilities
      2,557,000 5,050,000          2,570,000 2,220,000                                               59,000 330,000 451,000                 
        dividend payable
      1,288,000 1,265,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,449,000                                                            
        deferred revenue
      180,000  424,000 3,002,000 1,949,000  2,032,000 1,843,000 723,000 625,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000  750,000 750,000 750,000  750,000 750,000 750,000  750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 750,000 1,053,000 728,000 670,000                     
        operating lease liabilities
      340,000 364,000 384,000 372,000 340,000 314,000 186,000 171,000 157,000 127,000 119,000 116,000 109,000 109,000  26,000 25,000 24,000 24,000 25,000 26,000                                                          
        total current liabilities
      12,635,000 13,188,000 9,330,000 11,594,000 13,988,000 14,406,000 8,845,000 9,117,000 8,574,000 5,835,000 5,930,000 5,768,000 5,429,000 5,639,000 2,782,000 3,586,000 4,006,000 2,513,000 4,667,000 2,341,000 2,316,000 3,135,000 3,108,000 4,190,000 4,548,000 4,805,000 2,601,000 3,474,000 3,116,000 4,142,000 3,152,000 3,206,000 3,764,000 6,487,000 9,035,000 7,839,000 3,095,000 4,562,000 47,134,000 1,577,000 2,932,000 2,023,000 39,272,000 38,773,000 37,389,000 1,893,000 1,491,000 1,421,000 1,282,000 2,582,000 2,198,000 1,231,000 2,288,000 2,363,000 5,473,000 4,407,000 2,582,000 2,443,000 1,789,000 1,932,000 1,521,000 1,892,000 1,123,000 746,000 789,000 1,348,000 1,087,000 1,253,000 845,000 1,031,000 1,315,000 1,106,000 1,710,000 1,161,000 1,815,000 1,163,000 914,000 833,000 
        long-term debt
      85,599,000 72,705,000 59,840,000 58,751,000 57,713,000 56,708,000 55,699,000 54,724,000 54,229,000 37,711,000 37,394,000 36,924,000 36,620,000 48,950,000 48,353,000 47,606,000 47,029,000 46,477,000 45,929,000 82,476,000 78,921,000 78,596,000 75,225,000 73,739,000 72,397,000 137,565,000 141,409,000 137,988,000 136,716,000 136,246,000 133,287,000 129,937,000 126,782,000 123,768,000 120,929,000 117,842,000 101,847,000 102,374,000 67,846,000 109,285,000 100,983,000 108,218,000 73,186,000 72,585,000 71,086,000 104,384,000 102,537,000 100,409,000 98,404,000 96,417,000 87,090,000 85,460,000 83,925,000 63,250,000 56,831,000 55,146,000 53,572,000 52,032,000 50,517,000 49,080,000 45,725,000 44,403,000 39,801,000 38,722,000 37,685,000 36,665,000 35,661,000 34,695,000 35,184,000 33,975,000 32,814,000 31,716,000 30,655,000 29,652,000 28,639,000 27,681,000 26,756,000 25,881,000 
        long-term lease obligations with related party
      28,685,000 27,967,000 27,281,000 26,594,000 25,915,000 25,275,000 24,665,000 24,055,000 23,452,000 22,877,000 22,333,000 21,789,000 21,251,000 20,745,000 20,263,000 19,780,000 19,303,000 18,855,000 18,428,000 18,001,000  17,183,000    15,707,000             12,068,000 11,849,000                                       
        long-term operating lease liabilities
      2,912,000 3,122,000 3,147,000 3,201,000 3,253,000 3,473,000 1,976,000 1,976,000 1,974,000 318,000 354,000 384,000 418,000 444,000  3,083,000 3,010,000 3,257,000 3,183,000 3,109,000                                                           
        other long-term liabilities
      52,000 51,000 50,000 48,000 47,000 46,000 44,000 43,000 42,000 41,000 39,000 38,000 37,000 36,000 35,000 34,000 33,000 32,000 31,000 31,000    2,000 3,000 15,000 26,000 37,000 48,000  923,000 923,000 923,000 923,000 1,443,000 3,683,000 1,443,000 1,443,000 1,443,000 1,369,000 3,173,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000 923,000   923,000 923,000 1,423,000 1,423,000 923,000 923,000 923,000 923,000 923,000 752,000             
        total liabilities
      130,508,000 117,658,000 100,273,000 100,813,000 101,541,000 100,533,000 91,854,000 90,540,000 88,896,000 67,407,000 66,800,000 68,223,000 66,725,000 76,564,000 72,183,000 74,839,000 74,131,000 71,884,000 72,988,000 106,708,000 102,601,000 99,664,000 95,890,000 95,112,000 93,758,000 158,842,000 160,162,000 157,294,000 155,347,000 155,549,000 152,233,000 148,647,000 145,763,000 145,204,000 145,180,000 142,884,000 119,654,000 121,416,000 129,241,000 124,830,000 119,471,000 111,914,000 114,131,000 113,031,000 110,148,000 107,950,000 105,701,000 103,503,000 101,359,000 100,672,000 90,961,000 88,364,000 87,886,000 67,286,000 63,054,000 60,606,000 57,805,000 56,068,000 54,050,000 52,815,000 48,820,000 47,990,000 42,168,000 40,712,000 39,735,000 39,086,000 36,748,000 35,948,000 36,029,000 35,006,000 34,129,000 32,822,000 32,365,000 30,813,000 30,454,000 28,844,000 27,670,000 26,714,000 
        commitments and contingencies
                                                                                    
        stockholders’ equity:
                                                                                    
        preferred stock - .01 par value...
      1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000  1,000 1,000 1,000                                                       
        8.875% series a cumulative, perpetual preferred stock - .01 par value...
      1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000                                                              
        common stock - .01 par value...
      836,000  818,000 817,000 816,000  679,000 676,000 671,000  664,000 664,000 663,000  506,000 506,000 506,000  424,000 405,000   353,000 347,000                                             126,000   120,000    119,000 119,000  
        additional paid-in capital
      715,602,000 714,616,000 709,349,000 710,111,000 730,171,000 709,303,000 686,201,000 685,019,000 683,903,000 679,150,000 678,796,000 675,574,000 675,411,000 636,963,000 626,589,000 626,098,000 625,675,000 613,572,000 612,902,000 551,449,000 531,923,000 513,744,000 508,527,000 502,376,000 502,076,000 419,194,000 407,330,000 406,762,000 397,622,000 383,521,000 381,824,000 381,556,000 366,580,000 364,806,000 360,144,000 359,776,000 359,201,000 355,336,000 332,729,000 331,077,000 327,182,000 326,855,000 321,532,000 320,427,000 320,068,000 319,604,000 304,523,000 304,040,000 304,009,000 303,979,000 301,521,000 301,491,000 301,476,000 301,039,000 300,440,000 300,374,000 300,309,000 300,163,000 288,766,000 284,487,000 283,584,000 282,359,000 279,898,000 279,420,000 278,857,000 276,749,000 267,482,000 266,542,000 263,935,000 263,533,000 257,434,000 256,527,000 255,688,000 253,983,000 251,923,000 250,476,000 250,439,000 245,206,000 
        accumulated deficit
      -700,828,000 -692,192,000 -682,436,000 -675,364,000 -686,954,000 -676,096,000 -666,183,000 -658,125,000 -647,965,000 -639,850,000 -631,807,000 -623,606,000 -615,254,000 -603,298,000 -595,158,000 -587,348,000 -580,577,000 -573,400,000 -566,208,000 -556,920,000 -545,358,000 -539,414,000 -531,397,000 -526,904,000 -522,111,000 -501,597,000 -494,243,000 -486,799,000 -479,299,000 -470,008,000 -461,978,000 -455,738,000 -449,706,000 -443,735,000 -436,660,000 -430,668,000 -417,098,000 -409,871,000 -403,147,000 -397,972,000 -392,327,000 -383,532,000 -376,316,000 -370,351,000 -364,361,000 -359,519,000 -354,413,000 -349,847,000 -345,332,000 -340,638,000 -334,658,000 -329,861,000 -325,400,000 -317,961,000 -312,155,000 -307,419,000 -302,835,000 -298,387,000 -293,637,000 -289,532,000 -285,803,000 -281,550,000 -277,181,000 -274,002,000 -270,858,000 -265,651,000 -262,167,000 -259,033,000 -254,647,000 -251,252,000 -247,506,000 -244,020,000 -240,322,000 -235,343,000 -230,662,000 -226,444,000 -224,286,000 -221,710,000 
        total stockholders’ equity
      15,612,000  27,733,000 35,566,000 44,035,000  20,699,000 27,572,000 36,611,000  47,655,000 52,634,000 60,822,000  31,939,000 39,258,000 45,606,000  47,119,000                                         -4,907,000 -2,081,000  2,854,000 5,555,000 8,136,000  5,442,000 7,635,000 9,414,000  10,048,000 12,627,000 15,486,000  21,380,000 24,151,000 26,272,000  
        total liabilities and stockholders’ deficit
      146,120,000  128,006,000 136,379,000 145,576,000  112,553,000 118,112,000 125,507,000  114,455,000 120,857,000 127,547,000   114,097,000 119,737,000   101,643,000 89,549,000  73,374,000 70,932,000 74,071,000  73,519,000              54,505,000  59,526,000 63,284,000 66,032,000  55,973,000 57,857,000 60,197,000  57,978,000 60,148,000 64,116,000                          
        liabilities and stockholders' equity
                                                                                    
        contingent consideration liabilities
          1,200,000 1,200,000 1,450,000 1,450,000 1,450,000 1,450,000 1,450,000 1,450,000 1,450,000 1,450,000                                                                 
        short-term deferred revenue
       305,000    1,226,000    373,000 93,000                                                                    
        long-term deferred revenue
       625,000    625,000                                                                         
        stockholders' equity:
                                                                                    
        common stock - 0.01 par value...
       830,000    752,000    665,000    556,000    436,000        285,000                179,000        161,000            137,000        125,000         
        total stockholders' equity
       23,256,000    33,961,000    39,967,000    34,223,000    40,609,000                                        1,930,000    946,000    11,233,000    12,406,000    18,759,000    23,612,000 
        total liabilities and stockholders' equity
       140,914,000    134,494,000    107,374,000    110,787,000                                        50,518,000    57,998,000    48,936,000    50,319,000    47,412,000    49,572,000    50,326,000 
        asset
                                                                                    
        restricted cash
                 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,265,000 1,288,000 1,449,000                                                            
        equity-method investments
                    906,000 907,000 942,000 976,000 949,000 1,044,000 1,288,000 1,354,000 2,347,000 1,998,000 1,028,000 729,000                                                     
        stockholders' equity
                                                                                    
        total liabilities and stockholders’ equity
                    104,122,000    120,107,000                                    51,493,000 53,715,000 55,433,000  49,321,000 47,908,000 46,739,000  45,022,000 46,267,000 47,871,000  42,190,000 43,583,000 45,443,000  44,177,000 45,449,000 47,851,000  51,834,000 52,995,000 53,942,000  
        warrant derivative liabilities
                            1,727,000 2,037,000 2,547,000      1,119,000 1,528,000 1,871,000                                              
        total liabilities and stockholders' equitu
                       112,493,000                                                             
        stockholders’ equity
                                                                                    
        liabilities and stockholders’ deficit
                                                                                    
        stockholders’ deficit:
                                                                                    
        total stockholders’ deficit
                         -5,065,000 -13,052,000  -22,516,000 -24,180,000 -19,687,000  -86,643,000              -64,966,000  -54,605,000 -49,747,000 -44,116,000  -49,728,000 -45,646,000 -41,162,000  -32,983,000 -28,216,000 -23,770,000                          
        long-term lease obligations with related parties
                          17,579,000                                                          
        long-term operating lease liabilities
                          3,035,000                                                          
        31, 2021 and december 31, 2020; shares issued and outstanding – 7,531 at march 31, 2021 and 7,531 at december 31, 2020
                          1,000                                                          
        authorized at march 31, 2021 and december 31, 2020; shares issued and outstanding – 38,342,952 at
                                                                                    
        march 31, 2021 and 36,902,361 at december 31, 2020
                          382,000                                                          
        prepaid expenses and other
                           691,000    386,000    408,000    411,000  516,000 663,000 3,391,000 3,455,000 331,000 562,000 309,000 493,000 541,000 719,000 346,000 483,000 403,000 537,000 350,000 471,000 487,000 670,000 404,000 1,210,000 1,514,000 1,780,000 604,000 738,000 736,000 638,000 299,000    362,000  761,000 674,000 507,000 581,000 876,000 749,000 216,000 308,000 518,000 390,000 243,000 
        liabilities and stockholders' deficit
                                                                                    
        warrant liabilities
                           1,847,000        865,000    2,387,000 6,642,000                                            
        other liabilities
                           15,000 26,000 35,000 45,000 44,000 966,000 966,000 965,000 923,000                         923,000 923,000                       
        stockholders' deficit:
                                                                                    
        authorized at december 31, 2020 and december 31, 2019; shares issued and outstanding: 36,902,361 at december 31, 2020, and 28,480,567 at december 31, 2019
                           368,000                                                         
        total stockholders' deficit
                           -25,301,000    -82,118,000  -79,768,000 -81,418,000 -86,240,000 -79,909,000 -73,938,000 -82,894,000 -78,699,000 -76,291,000 -70,667,000 -57,675,000 -54,317,000 -70,228,000 -66,708,000  -56,498,000    -39,738,000    -36,498,000                             
        total liabilities and stockholders' deficit
                           74,363,000    76,724,000  77,526,000 73,929,000 69,309,000 72,324,000 74,709,000 62,869,000 66,505,000 68,889,000 72,217,000 61,979,000 67,099,000 59,013,000 58,122,000  55,416,000    68,212,000    64,174,000                             
        long-term lease obligations
                            16,807,000 16,431,000 16,060,000  15,376,000 15,045,000 14,717,000  14,121,000 13,831,000 13,544,000  13,023,000 12,770,000 12,519,000    11,633,000                                      
        december 31, 2019; shares issued – 10,000 at march 31, 2020 and 0 at december 31, 2019
                              1,000                                                      
        december 31, 2019; shares issued and outstanding – 34,772,030 at
                                                                                    
        march 31, 2020 and 28,480,567 at december 31, 2019
                              347,000                                                      
        long-term investments
                                71,000                                                    
        authorized at september 30, 2019 and december 31, 2018;
                                                                                    
        shares issued and outstanding - 26,996,060 at
                                                                                    
        september 30, 2019 and 24,654,911 at december 31, 2018
                                270,000                                                    
        authorized at june 30, 2019 and december 31, 2018;
                                                                                    
        shares issued and outstanding - 26,942,085 at
                                                                                    
        june 30, 2019 and 24,654,911 at december 31, 2018
                                 269,000                                                   
        authorized at march 31, 2019 and december 31, 2018;
                                                                                    
        shares issued and outstanding - 25,940,052 at
                                                                                    
        march 31, 2019 and 24,654,911 at december 31, 2018
                                  259,000                                                  
        long-term lease obligations with related party, net deferred revenue
                                   14,411,000    13,276,000    12,287,000                                         
        authorized; shares issued and outstanding: 24,654,911 at december 31, 2018, and 22,987,434 at december 31, 2017
                                   247,000                                                 
        authorized at september 30, 2018 and december 31, 2017;
                                                                                    
        shares issued and outstanding – 24,453,358 at
                                                                                    
        september 30, 2018 and 22,987,434 at december 31, 2017
                                    245,000                                                
        authorized at june 30, 2018 and december 31, 2017;
                                                                                    
        shares issued and outstanding – 24,425,296 at
                                                                                    
        june 30, 2018 and 22,987,434 at december 31, 2017
                                     244,000                                               
        and december 31, 2017; shares issued and outstanding – 23,216,535 at
                                                                                    
        march 31, 2018 and 22,987,434 at december 31, 2017
                                      232,000                                              
        current portion of long term debt
                                       1,408,000    170,000    49,000    11,000    11,000    11,000    4,000 8,000 12,000 16,000 16,000 16,000 16,000 18,000 20,000 22,000 24,000 25,000 9,000 9,000 9,000 9,000 9,000 9,000 9,000 9,000 9,000 
        authorized; shares issued and outstanding: 22,987,434 at december 31, 2017, and 21,768,864 at december 31, 2016
                                       230,000                                             
        authorized at september 30, 2017 and december 31, 2016;
                                                                                    
        shares issued and outstanding - 22,530,376 at
                                                                                    
        september 30, 2017 and 21,768,864 at december 31, 2016
                                        225,000                                            
        authorized; shares issued and outstanding – 22,483,122 at
                                                                                    
        june 30, 2017 and 21,768,864 at december 31, 2016
                                         225,000                                           
        authorized; shares issued and outstanding – 22,205,685 at
                                                                                    
        march 31, 2017 and 21,768,864 at december 31, 2016
                                          222,000                                          
        authorized; shares issued and outstanding: 21,768,864 at december 31, 2016, and 17,876,016 at december 31, 2015
                                           218,000                                         
        contingencies
                                                                                    
        authorized; shares issued and outstanding – 19,014,953 at
                                                                                    
        september 30, 2016 and 17,876,016 at december 31, 2015
                                            190,000                                        
        authorized; shares issued and outstanding – 18,677,053 at
                                                                                    
        june 30, 2016 and 17,876,016 at december 31, 2015
                                             187,000                                       
        authorized; shares issued and outstanding – 17,934,223 at
                                                                                    
        march 31, 2016 and 17,876,016 at december 31, 2015
                                              179,000                                      
        debt issuance costs
                                               626,000 651,000 719,000 779,000 837,000 900,000 959,000 1,013,000 1,068,000 1,122,000 1,178,000 1,229,000                          
        authorized; shares issued and outstanding – 17,861,658 at
                                                                                    
        september 30, 2015 and 17,681,274 at december 31, 2014
                                                179,000                                    
        authorized; shares issued and outstanding – 17,740,807 at
                                                                                    
        june 30, 2015 and 17,681,274 at december 31, 2014
                                                 177,000                                   
        authorized; shares issued and outstanding – 17,719,251 at
                                                                                    
        march 31, 2015 and 17,681,274 at december 31, 2014
                                                  177,000                                  
        authorized; shares issued and outstanding: 17,681,274 at
                                                                                    
        december 31, 2014, and 16,152,756 at december 31, 2013
                                                   177,000                                 
        authorized; shares issued and outstanding – 16,202,862 at
                                                                                    
        september 30, 2014 and 16,152,756 at december 31, 2013
                                                    162,000                                
        authorized; shares issued and outstanding – 16,172,239 at
                                                                                    
        june 30, 2014 and 16,152,756 at december 31, 2013
                                                     161,000                               
        march 31, 2014 and 16,152,756 at december 31, 2013
                                                      161,000                              
        authorized; shares issued and outstanding – 15,452,756 at
                                                                                    
        september 30, 2013 and 15,438,961 at december 31, 2012
                                                        154,000                            
        june 30, 2013 and 15,438,961 at december 31, 2012
                                                         154,000                           
        march 31, 2013 and 15,438,961 at december 31, 2012
                                                          154,000                          
        tax liability
                                                            321,000 321,000 321,000 321,000 321,000 321,000 321,000 321,000 321,000 321,000 338,000 321,000             
        stockholders' (deficit) equity:
                                                                                    
        authorized; shares issued and outstanding: 15,438,961 at
                                                                                    
        december 31, 2012, and 15,429,541 at december 31, 2011
                                                           154,000                         
        total stockholders' (deficit) equity
                                                           -16,768,000                         
        authorized; shares issued and outstanding – 15,438,961 at
                                                                                    
        september 30, 2012 and 15,429,541 at december 31, 2011
                                                            154,000                        
        total stockholders’ (deficit) equity
                                                            -11,561,000 -6,891,000 -2,372,000  -4,729,000                    
        june 30, 2012 and 15,429,541 at december 31, 2011
                                                             154,000                       
        march 31, 2012 and 15,429,541 at december 31, 2011
                                                              154,000                      
        authorized; shares issued and outstanding: 15,429,541 at
                                                                                    
        december 31, 2011, and 13,677,772 at december 31, 2010
                                                               154,000                     
        authorized; shares issued and outstanding – 14,192,874 at
                                                                                    
        september 30, 2011 and 13,677,772 at december 31, 2010
                                                                142,000                    
        authorized; shares issued and outstanding – 13,829,238 at
                                                                                    
        june 30, 2011 and 13,677,772 at december 31, 2010
                                                                 138,000                   
        authorized; shares issued and outstanding – 13,827,354 at
                                                                                    
        march 31, 2011 and 13,677,772 at december 31, 2010
                                                                  138,000                  
        prepaid expenses
                                                                    269,000 327,000 442,000  326,000            
        authorized; shares issued and outstanding – 13,677,772 at
                                                                                    
        september 30, 2010 and 13,500,997 at december 31, 2009
                                                                    137,000                
        june 30, 2010 and 13,500,997 at december 31, 2009
                                                                     137,000               
        march 31, 2010 and 13,500,997 at december 31, 2009
                                                                      137,000              
        short-term investments
                                                                         1,500,000 3,000,000 4,500,000         
        authorized; shares issued and outstanding: 13,500,997 at
                                                                                    
        december 31, 2009, and 12,453,210 at december 31, 2008
                                                                       135,000             
        tax receivable
                                                                        108,000            
        tax liabilities
                                                                        320,000            
        authorized; shares issued and outstanding – 12,659,548 at
                                                                                    
        september 30, 2009 and 12,453,210 at december 31, 2008
                                                                        127,000            
        authorized; shares issued and outstanding – 12,600,236 at
                                                                                    
        june 30, 2009 and 12,453,210 at december 31, 2008
                                                                         126,000           
        authorized; shares issued and outstanding – 11,958,210 at
                                                                                    
        september 30, 2008 and 11,903,611 at december 31, 2007
                                                                            120,000        
        march 31, 2008 and 11,903,611 at december 31, 2007
                                                                              120,000      
        series f convertible preferred stock – .01 par value:
                                                                                    
        1,000 shares issued and outstanding at december 31, 2006
                                                                                    
        and none at and december 31, 2007
                                                                                    
        authorized; shares issued and outstanding: 11,903,661 at
                                                                                    
        december 31, 2007 and 11,536,597 at december 31, 2006
                                                                               119,000     
        marketable securities
                                                                                8,775,000 8,658,000 8,540,000  
        series f convertible preferred stock - .01 par value:
                                                                                    
        no shares authorized and outstanding on september 30, 2007; 100,000 shares authorized, 1,000 issued and outstanding on december 31, 2006
                                                                                    
        common stock - .01 par value:
                                                                                    
        70,000,000 shares authorized; shares issued and outstanding - 11,903,611 at september 30, 2007 and 11,536,597 at december 31, 2006
                                                                                119,000    
        series f convertible preferred stock - .01 par value: 100,000 shares authorized; shares issued and outstanding - none at june 30, 2007 and 1,000 at december 31, 2006
                                                                                    
        100,000 shares authorized; shares issued and outstanding - 1,000 at march 31, 2007 and december 31, 2006
                                                                                    
        prepaid interest expense
                                                                                    
        100,000 shares authorized, shares issued and outstanding -
                                                                                    
        1,000 at december 31, 2006 and 1,000 at december 31, 2005
                                                                                    
        authorized; shares issued and outstanding: 11,536,597 at
                                                                                    
        december 31, 2006 and 11,330,463 at december 31, 2005
                                                                                   116,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-06-30 2025-03-31 2024-12-31 2024-06-30 2024-03-31 2023-12-31 2023-06-30 2023-03-31 2022-12-31 2022-06-30 2022-03-31 2021-12-31 2021-06-30 2021-03-31 2020-12-31 2020-06-30 2020-03-31 2019-12-31 2019-06-30 2019-03-31 2018-12-31 2018-06-30 2018-03-31 2017-12-31 2017-06-30 2017-03-31 2016-12-31 2016-06-30 2016-03-31 2015-12-31 2015-06-30 2015-03-31 2014-12-31 2014-06-30 2014-03-31 2013-12-31 2013-06-30 2013-03-31 2012-12-31 2012-06-30 2012-03-31 2011-12-31 2011-06-30 2011-03-31 2010-12-31 2010-06-30 2010-03-31 2009-12-31 2009-06-30 2009-03-31 2008-12-31 2008-06-30 2008-03-31 2007-12-31 2007-06-30 2007-03-31 
                                                                  
          cash flows from operating activities:
                                                                  
          net loss
        -8,636,000  -17,323,000  -8,625,000 -15,722,000  -6,755,000 -17,755,000 -10,691,000  -11,395,000 -5,912,000 -5,904,000 -17,506,000  -8,017,000 -25,307,000 -20,514,000     -12,003,000       -8,795,000 -7,216,000 -10,832,000 -4,842,000    -5,980,000                -8,677,000     
          adjustments to reconcile net loss to net cash from operating activities:
           -9,593,000   -6,850,000                                                    
          depreciation
        383,000 355,000 605,000 302,000 307,000 600,000 295,000 305,000 634,000 329,000 181,000 293,000 121,000 110,000 206,000 103,000 100,000 175,000 79,000 65,000 132,000 66,000 64,000 130,000 66,000 62,000 143,000 71,000 73,000 146,000 73,000 72,000 126,000 61,000 64,000 127,000 64,000 63,000 128,000 64,000 65,000 188,000 93,000 92,000 181,000 89,000 81,000 182,000 99,000 87,000 171,000 86,000 85,000      
          amortization of debt discount and issuance costs
        508,000 467,000 737,000 361,000 357,000 611,000 269,000 77,000 273,000 194,000 637,000 1,160,000 568,000 564,000 2,372,000 453,000  587,000 351,000  2,031,000 1,009,000  1,986,000 992,000  1,835,000 742,000  2,574,000 1,949,000  449,000 222,000  417,000 207,000  1,362,000 1,311,000  1,425,000                 
          amortization of right-of-use asset
        95,000 91,000 171,000 86,000 62,000 66,000 33,000 32,000 59,000 29,000 12,000 6,000 15,000 15,000                                           
          interest expense added to loan principal
        720,000 724,000 1,362,000 671,000 674,000 1,024,000 380,000 281,000 435,000 166,000    2,000 4,209,000 1,792,000 3,150,000 3,331,000 1,854,000 2,508,000 4,978,000 2,489,000 2,521,000 4,771,000 2,361,000 2,385,000 4,534,000 2,038,000 694,000 4,518,000 2,182,000 2,172,000 3,982,000 1,971,000 2,000,000 3,689,000 1,838,000 1,772,000 2,664,000 1,126,000  1,733,000 860,000  1,563,000 771,000  1,327,000 655,000  1,047,000 516,000  993,000 485,000  938,000 456,000 
          interest expense added to lease liability
        712,000 679,000 1,307,000 634,000 603,000 1,166,000 569,000 537,000 1,032,000 500,000 476,000 913,000 442,000 420,000 806,000 390,000 369,000 712,000 347,000 325,000 622,000 300,000 284,000 543,000 262,000  471,000 226,000                               
          compensation charge for stock and share option awards
        479,000 1,477,000 3,319,000 2,769,000 1,039,000 2,380,000 1,259,000 354,000 489,000 326,000 528,000 856,000 433,000 611,000 3,440,000 147,000  1,551,000 1,250,000  245,000 122,000  227,000 105,000  1,921,000 1,816,000  759,000 165,000  510,000 260,000  61,000 30,000                      
          unrealized gain on derivative liability
        -667,000         -130,000                                   -56,000 -121,000             
          changes in operating assets and liabilities:
                                                                  
          accounts receivable
        877,000 -1,960,000 496,000 -382,000 -1,343,000 -715,000 -677,000 -494,000 -426,000 229,000 92,000 116,000 146,000 -187,000 -11,000 37,000 41,000 -89,000 -27,000 44,000 -70,000 -21,000 68,000 -70,000 -2,000                                  
          inventories
        -330,000 1,657,000 9,000 -32,000 1,326,000 -2,391,000 -650,000 22,000 -849,000                                                  
          prepaid expenses and other current assets
        -277,000 144,000 155,000 -112,000 202,000 -498,000 -485,000 274,000 -233,000 -994,000 118,000 -219,000 -102,000 -374,000 -544,000 -127,000 -56,000 -243,000 -246,000 137,000 -164,000 -244,000 127,000 -193,000 -291,000                                  
          other assets
        33,000 1,033,000 65,000 3,000 2,000 73,000 40,000 124,000 -443,000 29,000 -470,000 -242,000 -271,000 28,000 177,000 -272,000 -391,000 -243,000 -271,000 29,000 -243,000 -284,000 28,000 16,000 -13,000                                  
          accounts payable
        540,000 338,000 1,137,000 1,021,000 -956,000 670,000 1,485,000 -375,000 816,000 523,000 -140,000 216,000 664,000 -183,000 -154,000 -188,000 -97,000 879,000 738,000 -473,000 668,000 663,000 -600,000 114,000 528,000                                  
          lease liabilities
        -234,000 -45,000 -214,000 -194,000 3,000 -154,000 -170,000 -28,000 -53,000 -26,000  -172,000 -246,000  -175,000 -255,000                                           
          deferred revenue
        -125,000 -119,000 1,776,000 723,000 -806,000 1,470,000 350,000 155,000                                                   
          other accrued liabilities
        412,000 -2,108,000 1,398,000 99,000 945,000 1,177,000 972,000 -31,000 599,000 116,000  743,000 795,000  1,170,000 1,396,000                                           
          net cash from operating activities
        -5,510,000 -6,920,000 -5,000,000 -3,644,000 -6,210,000 -9,936,000 -2,873,000 -5,522,000 -9,871,000 -4,069,000 -5,225,000 -7,550,000 -3,222,000 -5,631,000 -5,999,000 -2,823,000 -3,132,000 -7,019,000 -4,379,000 -3,004,000 -6,872,000 -4,035,000 -3,549,000 -6,419,000 -3,937,000 -2,740,000 -4,867,000 -2,635,000 -3,104,000 -4,821,000 -1,480,000 -3,135,000 -5,348,000 -2,636,000 -1,632,000 -6,557,000 -4,434,000 -3,141,000 -10,551,000 -6,722,000 -3,231,000 -6,064,000 -4,020,000 -2,170,000 -2,814,000 -1,986,000 -1,635,000 -3,831,000 -2,344,000 -1,330,000 -3,818,000 -2,047,000 -1,050,000 -4,575,000 -2,162,000 -1,826,000 -2,632,000 -1,393,000 
          capital expenditures
        -242,000 -1,326,000 -5,800,000 -1,289,000 -412,000 -467,000 -186,000 -1,972,000 -3,213,000 -2,206,000 -944,000 -1,748,000 -530,000 -1,814,000 -20,177,000 -513,000 -4,712,000 -3,453,000 -818,000 -165,000 -927,000 -502,000 -335,000 -161,000 -116,000 -555,000 -240,000 -19,000 -47,000 -14,000 -167,000 -167,000 -1,777,000 -858,000 -257,000 -1,037,000 -2,109,000 -1,110,000 -441,000 -412,000 -352,000 -45,000 -67,000 -57,000 -1,000 -77,000 -60,000 -115,000 -176,000 
          free cash flows
        -5,752,000 -8,246,000 -10,800,000 -4,933,000 -6,622,000 -10,403,000 -3,059,000 -7,494,000 -13,084,000 -6,275,000 -6,169,000 -9,298,000 -3,752,000 -7,445,000 -26,176,000 -3,336,000 -3,132,000 -11,731,000 -7,832,000 -3,004,000 -7,690,000 -4,200,000 -3,549,000 -7,346,000 -4,439,000 -3,075,000 -5,028,000 -2,751,000 -3,104,000 -4,821,000 -1,480,000 -3,690,000 -5,588,000 -2,655,000 -1,679,000 -6,571,000 -4,434,000 -3,141,000 -10,718,000 -6,889,000 -5,008,000 -6,922,000 -4,277,000 -3,207,000 -4,923,000 -3,096,000 -2,076,000 -4,243,000 -2,696,000 -1,375,000 -3,885,000 -2,104,000 -1,051,000 -4,652,000 -2,222,000 -1,941,000 -2,808,000 -1,393,000 
          cash flows from investing activities:
                                                                  
          additions to property, plant and equipment and water programs
        -242,000 -1,326,000 -5,800,000 -1,289,000 -412,000 -467,000 -186,000 -1,972,000 -3,213,000 -2,206,000 -944,000 -1,748,000 -530,000 -1,814,000 -20,177,000 -513,000  -4,712,000 -3,453,000  -818,000 -165,000  -927,000 -502,000                                  
          additions to deposits for asset purchase options
         -5,000,000 -5,000,000                                                       
          net cash from investing activities
        -242,000 -1,326,000 -10,800,000 -6,289,000 -662,000 -467,000 -186,000 -1,972,000 -3,213,000 -2,206,000 -1,589,000 -1,848,000 -630,000 -1,943,000 -20,436,000 -650,000 -2,026,000 -6,995,000 -4,693,000 -1,075,000 -818,000 -165,000 -2,468,000 -927,000 -502,000 -335,000 -161,000 -116,000    -555,000 -240,000 -19,000 -47,000 -14,000  -167,000 -167,000 -1,412,000 -1,286,000 -485,000 -1,037,000 -2,109,000 -1,110,000 -441,000 -412,000 -352,000 -45,000 2,933,000 1,443,000       
          cash flows from financing activities:
                                                                  
          net proceeds from issuance of stock
          18,335,000 18,335,000     38,490,000 38,490,000  11,741,000 11,741,000  30,354,000 14,867,000  3,923,000 3,923,000  14,642,000 7,891,000                                     
          dividend payments
        -1,265,000  -2,553,000 -1,288,000  -2,553,000 -1,288,000  -2,553,000 -1,288,000  -2,553,000 -1,288,000                                              
          proceeds from the issuance of long-term debt
        15,000,000    20,000,000 20,000,000   12,000                 7,600,000                             
          principal payments on long-term debt
        -22,000 -28,000 -72,000 -40,000 -32,000 -98,000 -52,000 -45,000 -15,088,000 -15,047,000 -53,000 -69,000 -35,000 -36,000 -27,000 -13,000 -13,000 -23,000 -15,000 -15,000 -29,000 -14,000 -14,000 -28,000 -14,000 -13,000 -44,900,000 -14,000 845,000 -10,958,000 -10,514,000 -15,000 -12,000 -3,000 -3,000 -5,000 -3,000 -3,000 -5,000 -65,960,000 -3,000 -4,000 -4,000 -4,000 -8,000 -4,000 -5,000 -14,000 -7,000 -6,000 -9,000 -2,000 -2,000 -4,000 -2,000 -3,000   
          taxes paid related to net share settlement of equity awards
        -25,000 -61,000 -172,000 -172,000 -52,000 -52,000 -261,000 -261,000                                                 
          net cash from financing activities
        13,688,000 12,415,000 14,338,000 16,835,000 20,838,000 16,003,000 17,769,000 -1,310,000 19,961,000 21,267,000 8,589,000 9,119,000 10,418,000 -1,485,000 30,331,000 14,854,000 4,946,000 3,900,000 3,908,000 4,490,000 14,613,000 7,877,000 908,000 14,553,000 -14,000 50,000 12,290,000 -14,000 11,383,000 8,049,000 893,000 -15,000 -12,000  14,520,000 -5,000 -3,000 9,887,000 16,252,000 16,255,000 4,955,000 -4,000  11,125,000 1,992,000 -4,000 4,995,000 -14,000 -7,000 8,828,000 38,000 46,000    -3,000 5,167,000  
          net increase in cash, cash equivalents and restricted cash
        7,936,000  -1,462,000 6,902,000  5,600,000 14,710,000  6,877,000 14,992,000 1,775,000 -279,000 6,566,000 -9,059,000 3,896,000   -10,114,000 -5,164,000  6,923,000   7,207,000                                   
          cash, cash equivalents and restricted cash, beginning of period
        11,358,000 17,426,000 17,426,000 4,636,000 4,636,000 13,782,000 13,782,000 19,856,000 19,856,000 7,424,000 7,424,000  15,816,000 15,816,000  12,691,000 12,691,000  13,163,000 13,163,000                                  
          cash, cash equivalents and restricted cash, end of period
        19,294,000 4,169,000 15,964,000 24,328,000 13,966,000 10,236,000 19,346,000 -8,804,000 20,659,000 28,774,000 1,775,000 19,577,000 26,422,000 -9,059,000 11,320,000 18,805,000  5,702,000 10,652,000  19,614,000 16,368,000  20,370,000 8,710,000                                  
          finance expense
            307,000 307,000                                                    
          unrealized gain on derivative liabilities
                                                                  
          payments for contingent consideration liabilities
                                                                  
          net proceeds from issuance of common stock
                                                  11,129,000               
          dividend payment
                                                                  
          issuance costs of long-term debt
               -27,000 -27,000                                                
          payment for contingent consideration liabilities
         -1,200,000                                                        
          issuance costs long-term debt
             -1,294,000 -839,000                                                    
          net decrease in cash, cash equivalents and restricted cash
                             3,677,000   -4,453,000                                  
          loss on early extinguishment of debt
               5,331,000 5,331,000                 3,501,000   2,250,000 2,250,000                            
          unrealized loss on derivative liabilities
                                                                  
          costs for extinguishment of debt
                                                                  
          unrealized loss on derivative liability
                220,000                                                  
          costs for early extinguishment of debt
                -600,000 -600,000                                                 
          gain/loss on equity method investments
                                                                  
          contributions to equity-method investments
                  -112,000 -100,000 -100,000 -129,000 -259,000 -137,000 -400,000 -2,283,000 -1,240,000                                        
          distributions from equity-method investments
                                                                  
          payments for acquisitions, net of cash acquired
                                                                  
          adjustments to reconcile net loss to net cash from operating activities:
                                                                  
          loss on equity method investments
                  -211,000 169,000 134,000 102,000 569,000 203,000 1,393,000 699,000 626,000                                        
          loss on debt conversion and extinguishment of debt
                       12,394,000 12,396,000                                        
          unrealized gain on warrant derivative liabilities
                              -859,000 -516,000                                  
          accrued and other liabilities
                                                                  
          net proceeds from the issuance of 8.875% series a cumulative, perpetual preferred stock
                                                                  
          other
                                                             -7,000     
          unrealized loss on warrant derivative liabilities
                      -573,000 -573,000  51,000 561,000    -254,000                                    
          proceeds from the exercise of warrants
                                                                  
          costs of extinguishment of debt
                                                                  
          taxes paid related to net settlement of equity awards
                                                                  
          proceeds from the issuance of warrants
                      4,000                                            
          adjustments to reconcile net loss tonet cash from operating activities:
                                                                  
          additions to long-term investments
                                                                  
          net proceeds from the issuance of 8.857% series a cumulative, perpetual preferred stock
                                                                  
          adjustments to reconcile net loss to
                       -5,944,000           -20,797,000          -4,694,000   -7,439,000                   
          net cash from operating activities:
                                                                  
          net increase increase in cash, cash equivalents and restricted cash
                       11,381,000                                           
          amortization of deferred loan costs
                                                                  
          amortization of debt discount
                                                                  
          debt conversion expense
                           197,000 197,000                                     
          compensation charge for stock awards and share options
                                                       2,673,000 2,110,000 440,000 1,392,000   2,544,000     
          additions to property, plant and equipment
                                 -335,000 -161,000 -116,000    -555,000 -240,000 -19,000 -47,000 -14,000  -167,000 -167,000 -1,777,000 -858,000 -257,000 -1,037,000 -2,109,000 -1,110,000 -441,000 -412,000 -352,000 -45,000 -67,000 -57,000 -1,000 -77,000 -60,000 -115,000 -176,000  
          net increase in cash and cash equivalents and restricted cash
                                                                  
          cash and cash equivalents and restricted cash, beginning of period
                                                                  
          cash and cash equivalents and restricted cash, end of period
                                                                  
          accrued liabilities
                         -1,516,000 -1,523,000  -559,000 -1,072,000 1,007,000 -1,138,000 -1,459,000                                  
          loss on debt conversions
                                                                  
          additions to long-term deposit
                                                                  
          contributions and advances to equity-method investments
                                                                  
          net loss adjustments to reconcile net loss to
                            -14,736,000 -7,260,000   -5,971,000   -7,227,000  -14,440,000      -9,209,000      -9,032,000 -4,448,000  -7,982,000 -4,253,000  -8,351,000 -5,207,000  -7,781,000 -3,395,000   -4,979,000  -4,734,000 -2,576,000 
          loss on debt conversion
                            27,000   57,000 1,000 2,000                                 
          adjustments to reconcile net loss to net cash
                                                                  
          used for operating activities:
                                                                  
          loss on early extinguishment of debt and debt refinancing
                                             835,000 835,000                   
          net proceeds from issuance of long-term debt
                                                                  
          net proceeds from the issuance of stock
                               14,581,000                                   
          net proceeds from the issuance of long-term debt
                                  57,190,000                                
          other long-term liabilities
                                                                  
          increase in warrant liabilities
                                 -1,139,000                                 
          interest added to lease liability
                                                                  
          decrease in accounts receivable
                                 20,000 -11,000 -45,000 27,000 129,000 149,000  144,000 170,000  48,000 -10,000  171,000 216,000 112,000 -27,000 2,000 5,000 253,000 96,000  130,000 77,000   27,000   -11,000    
          decrease in prepaid expenses and other
                                 114,000 2,875,000 2,728,000                   -9,000 14,000    -167,000   -533,000    
          increase in other assets
                                  -243,000 -271,000 29,000 -357,000 -271,000 28,000 -243,000 -272,000 28,000 -271,000 -271,000                      
          increase in accounts payable
                                 -26,000 40,000 414,000 -220,000 -63,000 195,000 -244,000 324,000 315,000 -284,000   -130,000   52,000 -832,000 -622,000 104,000 507,000 497,000      -176,000   339,000    
          increase in accrued liabilities
                                 1,616,000 1,464,000 -3,127,000 -58,000 -315,000 876,000  571,000    -554,000  -546,000 372,000 -701,000 575,000 174,000 257,000 -210,000  -255,000 34,000  -88,000 432,000 -26,000   210,000    
          up-front payment related to lease liability
                                      11,509,000                            
          debt issuance costs
                                    -863,000 -102,000 -102,000       -1,243,000 -1,243,000                   
          net increase in cash and cash equivalents
                                 -3,025,000 7,262,000  8,279,000 3,228,000     12,841,000 -6,576,000 -4,437,000 6,746,000 5,534,000 9,366,000             -718,000 -4,663,000  6,581,000 -6,299,000  
          cash and cash equivalents, beginning of period
                                 12,172,000 12,172,000 2,690,000 2,690,000 16,206,000 16,206,000 11,887,000 11,887,000 1,685,000 1,685,000 11,370,000 11,370,000 5,911,000 5,911,000 8,878,000 8,878,000 2,014,000 2,014,000 8,921,000 8,921,000 10,397,000 10,397,000 
          cash and cash equivalents, end of period
                                 -3,025,000 19,434,000 9,407,000 8,279,000 5,918,000 2,103,000 -3,705,000 10,606,000 13,548,000 12,841,000 5,311,000 7,450,000 6,746,000 7,219,000 11,051,000 312,000 4,016,000 6,861,000 7,918,000 2,980,000 2,811,000 2,919,000 4,621,000 6,175,000 7,453,000 1,167,000 1,456,000 -718,000 4,258,000 6,697,000 6,581,000 4,098,000 5,632,000 
          (increase) in other assets
                                                                  
          gain on debt conversion
                                  55,000                                
          (decrease) in other long-term liabilities
                                  -655,000                                
          net decrease in cash and cash equivalents
                                   -2,765,000   -587,000  -5,600,000 -2,658,000        -7,354,000 -4,509,000  -2,931,000 -3,100,000  -4,257,000 -2,703,000  -847,000 -558,000   -2,224,000   -4,765,000 
          increase in prepaid expenses and other
                                     -22,000 -253,000  -379,000 -478,000  -258,000 -298,000  -381,000 -413,000  -910,000 -1,176,000  -437,000 -339,000   -101,000  -157,000        
          up-front payment related to lease liability with related party
                                     11,509,000                             
          increase in accounts receivable
                                                          -4,000        
          decrease in accrued liabilities
                                         -43,000  -550,000          -411,000   -32,000          
          net cash from by financing activities
                                         -3,000                         
          adjustments to reconcile net loss to net cash from operating activities used for operating activities:
                                                                  
          increase in deferred revenue
                                                553,000 228,000                
          increase in inventories
                                                       -249,000 -67,000          
          decrease in accounts payable
                                           -611,000 -746,000  -420,000 -282,000        -382,000 -307,000          
          decrease in other assets
                                             30,000 -2,917,000 -2,951,000 -140,000 31,000 9,000 146,000 -83,000 -115,000 188,000 32,000 32,000 49,000         
          compensation charge for stock and share options
                                              453,000 439,000  232,000 159,000  1,793,000 1,226,000             
          (decrease ) increase in accrued liabilities
                                                                  
          increase in restricted cash
                                                 -428,000 -228,000                
          proceeds from issuance of long-term debt
                                              17,500,000 83,458,000 4,958,000   2,000,000     -1,000 47,000 48,000       
          net loss adjustments to reconcile net loss to net cash from operating activities:
                                              -11,900,000                    
          interest added to loan principal
                                                                  
          amortization of debt discount & issuance costs
                                                  701,000  1,157,000 574,000  759,000 380,000  1,307,000 685,000  1,112,000 538,000  895,000 435,000 
          net cash provided used in financing activities
                                                  -4,000                
          issuance of stock for services
                                                                 
          increase in tax liability
                                                        17,000          
          proceeds from sale of marketable securities
                                                                  
          increase in other long-term liabilities
                                                    500,000              
          investments in short-term deposits
                                                                  
          (increase) in accounts receivable
                                                                  
          (increase) in inventories
                                                                  
          (decrease) in accounts payable
                                                                  
          proceeds from sale of short-term investments
                                                          3,000,000        
          net loss on disposal of assets
                                                                  
          increase increase in accounts payable
                                                                  
          increase (decrease) in tax liability
                                                                  
          proceeds from exercise of stock options
                                                                  
          increase in prepaid expenses
                                                                  
          increase (decrease) in accounts payable
                                                          -225,000   48,000   -101,000 -63,000 
          compensation charge for stock awards and share options changes in operating assets and liabilities:
                                                           403,000   1,705,000  102,000 65,000 
          proceeds from marketable securities
                                                           1,500,000       
          loss on extinguishment of debt and debt refinancing
                                                                  
          change in value of derivative liability
                                                                  
          decrease (increase) in accounts receivable
                                                             -1,000  9,000 286,000 256,000 
          decrease (increase) in prepaid borrowing expense
                                                                  
          decrease (increase) in prepaid expenses and other
                                                             -660,000  92,000 -275,000 -147,000 
          (decrease) increase in accounts payable
                                                                  
          (decrease) increase in accrued liabilities
                                                                  
          investment in short-term deposits
                                                                  
          proceeds from asset disposition
                                                                  
          deferred loan costs
                                                                  
          decrease in inventories
                                                                  
          investment in marketable securities
                                                               -44,000 -8,658,000 -8,540,000 
          net cash used by investing activities
                                                             -84,000 -60,000  -8,834,000 -8,541,000 
          cash flows provided by (used by) financing activities:
                                                                  
          net proceeds from exercise of stock options
                                                                140,000 140,000 
          net proceeds from exercise of warrants
                                                                5,031,000 5,031,000 
          net cash from (used by) financing activities
                                                             -4,000 -2,000   5,169,000 
          depreciation and amortization
                                                             169,000 84,000 64,000 76,000 37,000 
          increase (decrease) in accrued liabilities
                                                             -103,000   431,000 144,000 
          non-cash financing and investing activities:
                                                                  
          issuance of common stock for services accrued in prior year
                                                                  
          decrease (increase) in other assets
                                                                -250,000  
          supplemental disclosure of non-cash investment and financing activities
                                                                  
          reclassification of loan conversion option fair value from liabilities to stockholder’s equity
                                                                  
          cash flows provide by (used by) financing activities:
                                                                  
          amortization of debt issuance costs
                                                                  
          interest added to loan principal net loss on disposal of assets
                                                                  
          write-off of permanent and developing crops
                                                                  
          deconsolidation of subsidiary
                                                                  
          decrease (increase) in restricted cash
                                                                  
          non-cash financing and investing activities
                                                                  
          settlement of note receivable from officer
                                                                  
          issuance of common stock to prepay interest on term loan obligations
                                                                  
          exchange of deferred stock units for common stock