7Baggers
Quarterly
Annual
    Unit: USD2025-09-30 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 2016-09-30 2016-06-30 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 
      
    		                                                       
      assets
    		                                                       
      current assets:
    		                                                       
      cash and cash equivalents
    		47,103,000 57,050,000 49,137,000 29,627,000 63,261,000 40,313,000 70,781,000 68,098,000 51,440,000 44,239,000 66,332,000 56,354,000 52,131,000 43,223,000 44,520,000 74,358,000 65,745,000 103,302,000 105,431,000 94,255,000 80,149,000 62,970,000 32,842,000   23,331,000 16,992,000 21,955,000 33,394,000 16,378,000 32,153,000 27,780,000 19,245,000 80,691,000 78,987,000 13,423,000 16,642 18,287,000 18,829,000 15,762,000 18,507 45,430,000 50,396,000 52,589,000 55,338,000 56,802,000 52,109,000 50,511,000 59,115,000 74,725,000 79,631,000 75,004,000 79,287,000 79,821,000 1,655,000 
      short-term investments
    		23,278,000 22,467,000 34,408,000 48,392,000 55,364,000 60,697,000 46,577,000 40,445,000 33,095,000 50,832,000 32,338,000 33,479,000 30,156,000 38,479,000 37,702,000 31,332,000 41,900,000 17,394,000 14,617,000 20,446,000 24,373,000 28,409,000 40,995,000 58,736,000 59,905,000 71,854,000 71,771,000 73,338,000 65,446,000 72,207,000 58,108,000 70,020,000 72,241,000 15,049,000 15,095,000 8,029,000  11,442,000 12,033,000 12,548,000                
      accounts receivable
    		44,016,000 32,587,000 32,389,000 64,066,000 31,845,000 20,670,000 25,055,000 46,937,000 23,337,000 15,361,000 11,584,000 34,062,000 18,422,000 13,926,000 26,674,000 20,615,000 13,066,000 7,599,000 16,397,000 11,792,000 11,055,000 12,816,000 13,841,000 12,979,000 20,848,000 15,197,000 17,408,000 10,212,000 7,666,000 11,304,000 12,754,000 12,465,000 11,929,000 8,193,000 8,242,000 11,785,000  10,224,000 9,186,000 6,316,000  3,795,000 8,375,000 8,507,000 9,649,000 6,209,000 14,914,000 15,561,000 12,683,000 10,319,000 8,407,000 11,587,000 20,615,000 13,333,000 12,595,000 
      inventories
    		33,566,000 32,660,000 32,410,000 24,906,000 33,464,000 33,659,000 31,671,000 26,149,000 33,888,000 36,315,000 33,119,000 28,366,000 32,132,000 28,235,000 23,482,000 20,383,000 20,557,000 15,289,000 11,925,000 11,748,000 10,662,000 9,915,000 10,938,000 10,317,000 8,977,000 7,763,000 7,307,000 7,138,000 6,275,000 6,375,000 7,328,000 5,514,000 6,283,000 5,839,000 6,178,000 6,635,000  6,521,000 7,020,000 8,350,000  9,917,000 9,704,000 9,408,000 9,772,000 12,080,000 12,208,000 12,695,000 10,359,000 10,510,000 11,160,000 10,080,000 8,493,000 9,779,000 7,060,000 
      prepaid expenses and other assets
    		7,658,000 7,382,000 6,248,000 6,665,000 5,980,000 3,690,000 4,288,000 3,843,000 4,508,000 3,544,000 4,569,000 5,606,000 6,377,000 5,213,000 6,594,000 5,075,000 5,541,000                                       
      total current assets
    		155,621,000 152,146,000 154,592,000 173,656,000 189,914,000 159,029,000 178,372,000 185,472,000 146,268,000 150,291,000 147,942,000 157,867,000 139,218,000 129,076,000 138,972,000 151,763,000 146,809,000 147,849,000 152,840,000 143,191,000 131,198,000 119,097,000 103,803,000 112,967,000 123,664,000 122,328,000 117,856,000 119,648,000 119,061,000 114,921,000 118,041,000 126,196,000 119,295,000 113,154,000 112,636,000 55,107,000  60,039,000 58,492,000 54,885,000  73,263,000 85,776,000 86,821,000 88,198,000 88,259,000 94,112,000 93,849,000 96,179,000 109,021,000 110,237,000 109,487,000 116,328,000 110,621,000 28,830,000 
      long-term investments
    		9,556,000 14,133,000 23,185,000 21,832,000 21,286,000 37,017,000 12,137,000 13,832,000 21,394,000 2,471,000 3,019,000 3,058,000 4,271,000 4,809,000 14,334,000 2,298,000 765,000    1,418,000 5,510,000 19,361,000 15,419,000 7,549,000 1,507,000 2,548,000 1,269,000 2,341,000       5,355,000  3,705,000 4,466,000 6,806,000                
      deferred tax assets
    		9,711,000 10,341,000 10,645,000 9,004,000 11,029,000 11,441,000 11,652,000 10,324,000 11,183,000 11,672,000 11,415,000 10,263,000 11,214,000 11,548,000 11,070,000 11,421,000 12,093,000 12,471,000                  500,000  460,000 460,000 460,000   2,097,000 2,097,000 2,097,000 1,416,000 1,467,000 1,467,000 1,466,000 1,950,000 1,755,000 1,755,000 1,755,000 1,052,000 1,052,000 
      property and equipment
    		13,341,000 13,632,000 14,585,000 15,424,000 16,352,000 17,248,000 17,889,000 18,699,000 18,747,000 19,391,000 19,703,000 19,580,000 18,724,000 18,958,000 19,932,000 20,361,000 20,905,000 20,443,000 20,734,000 20,176,000 20,535,000 18,838,000 19,780,000 18,843,000 17,442,000 17,384,000 16,239,000 14,619,000 15,634,000 12,988,000 12,742,000 13,393,000 13,632,000 9,182,000 9,762,000 15,554,000  16,522,000 15,935,000 16,123,000  20,787,000 21,382,000 21,900,000 22,314,000 22,866,000 22,585,000 20,855,000 16,958,000 7,031,000 4,399,000 2,605,000 1,845,000 1,694,000 1,736,000 
      operating lease, right of use asset
    		8,198,000 8,687,000 9,168,000 9,695,000 10,152,000 10,599,000 11,038,000 11,469,000 11,892,000 12,306,000 12,713,000 13,115,000 13,510,000 13,898,000 14,279,000 14,653,000 15,021,000 15,383,000 15,739,000 16,090,000 16,444,000 16,810,000 17,253,000 11,195,000 11,449,000 11,700,000 11,946,000 12,189,000 12,428,000 12,669,000 2,511,000                         
      goodwill
    		12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000          12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000  12,790,000 12,790,000 12,790,000  12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000 12,790,000       
      other assets, non-current
    		428,000 546,000 429,000 391,000 1,182,000 919,000 387,000 388,000 387,000 753,000 385,000 366,000 365,000 365,000 365,000 367,000  365,000 1,371,000 988,000 645,000 639,000 632,000 407,000 402,000 308,000 304,000 282,000 287,000 285,000 267,000 12,000 2,000 4,000 2,000 2,000  2,000 2,000 2,000  2,000 2,000 2,000 19,000 41,000 43,000 52,000 53,000 52,000 52,000 51,000 51,000 51,000 51,000 
      total assets
    		209,645,000 212,275,000 225,394,000 242,792,000 262,705,000 249,043,000 244,265,000 252,974,000 222,661,000 209,674,000 207,967,000 217,039,000 200,121,000 191,476,000 211,776,000 213,690,000 208,788,000 209,344,000 215,218,000 204,314,000 194,537,000 185,972,000 190,612,000 188,774,000 190,587,000 183,465,000 180,022,000 179,841,000 181,613,000 174,245,000 155,857,000 161,744,000 149,039,000 141,510,000 141,356,000 97,684,000 104,554 104,825,000 103,594,000 104,308,000 110,713 118,108,000 128,677,000 130,899,000 133,917,000 135,617,000 142,968,000 143,817,000 142,969,000 119,336,000 118,931,000 118,755,000 120,612,000 112,956,000 33,638,000 
      liabilities and stockholders’ equity
    		                                                       
      current liabilities:
    		                                                       
      accounts payable
    		4,744,000 3,444,000 3,404,000 3,109,000 3,414,000 4,753,000 3,492,000 3,000,000 1,809,000 1,741,000 1,959,000 814,000 1,931,000 2,716,000 4,360,000 909,000 3,663,000 2,278,000 1,957,000 1,118,000 1,951,000 1,860,000 1,868,000 1,192,000 1,559,000 1,459,000 1,989,000 1,439,000 4,515,000 1,932,000 2,341,000 4,091,000 3,336,000 1,796,000 1,518,000 1,939,000  1,865,000 1,354,000 1,438,000  1,508,000 1,741,000 1,304,000 1,429,000 1,675,000 3,611,000 3,005,000 1,952,000 803,000 1,838,000 1,811,000 2,270,000 2,090,000 1,834,000 
      accrued expenses and other liabilities
    		12,068,000 11,248,000 11,272,000 17,728,000 10,524,000 10,153,000 8,342,000 15,583,000 11,402,000 10,491,000 8,185,000 14,693,000 11,319,000 9,483,000 8,093,000 13,994,000 9,582,000                                       
      lease liabilities
    		2,472,000 2,414,000 2,357,000 2,020,000 1,964,000 1,909,000 1,854,000 1,791,000 1,740,000 1,689,000 1,645,000 1,600,000 1,552,000 1,505,000 1,459,000 1,564,000 1,518,000   1,243,000 1,209,000 1,196,000 1,209,000 1,023,000 1,019,000 983,000 954,000  764,000 336,000 1,641,000                         
      contract liabilities
    		1,933,000 1,733,000 1,401,000 571,000 2,969,000 3,214,000 3,449,000 1,097,000 1,467,000 1,268,000 1,451,000 1,195,000 2,157,000 1,507,000 2,057,000 3,318,000 1,452,000   1,552,000 1,160,000 980,000 16,509,000 15,746,000 17,507,000 15,447,000 15,656,000 16,270,000 15,899,000 17,651,000 16,831,000                         
      total current liabilities
    		21,217,000 18,839,000 18,434,000 23,428,000 18,871,000 20,029,000 17,137,000 21,471,000 16,418,000 15,189,000 13,240,000 18,302,000 16,959,000 15,211,000 15,969,000 19,785,000 16,215,000 13,265,000 12,277,000 15,729,000 12,974,000 10,807,000 25,742,000 27,830,000 28,604,000 24,045,000 24,282,000 27,132,000 28,245,000 25,477,000 25,603,000 19,833,000 17,690,000 15,065,000 14,033,000 9,745,000  11,796,000 9,218,000 8,121,000  7,650,000 8,943,000 8,452,000 10,347,000 14,090,000 18,189,000 17,582,000 17,495,000 7,644,000 8,638,000 9,225,000 13,193,000 11,032,000 9,433,000 
      lease liabilities, non-current
    		7,527,000 8,144,000 8,751,000 9,297,000 9,861,000 10,415,000 10,959,000 11,488,000 11,992,000 12,488,000 12,970,000 13,278,000 13,732,000 14,177,000 14,615,000 14,879,000  15,682,000 16,074,000 16,443,000 16,802,000 17,155,000 17,523,000 11,533,000 11,777,000 12,050,000 12,311,000 12,556,000 12,797,000 13,033,000 1,273,000                         
      other liabilities, non-current
    		69,000 85,000 96,000 57,000 100,000 86,000 132,000 207,000 222,000 215,000 254,000 121,000 127,000 227,000 226,000 247,000  571,000                                      
      total liabilities
    		28,813,000 27,068,000 27,281,000 32,782,000 28,832,000 30,530,000 28,228,000 33,166,000 28,632,000 27,892,000 26,464,000 31,701,000 30,818,000 29,615,000 30,810,000 34,911,000 32,049,000 29,518,000 28,878,000 32,690,000 30,552,000 28,555,000 52,347,000 52,761,000 55,833,000 56,005,000 60,102,000 66,463,000 72,018,000 71,884,000 64,383,000 79,213,000 80,771,000 83,097,000 83,274,000 13,933,000 17,173 15,789,000 13,334,000 12,008,000 13,759 11,644,000 11,613,000 11,241,000 13,117,000 16,250,000 20,452,000 21,952,000 22,000,000 7,893,000 8,927,000 9,557,000 13,613,000 11,496,000 9,950,000 
      commitments and contingencies
    		                                                       
      stockholders’ equity:
    		                                                       
      common stock
    		67,000 67,000 67,000 66,000 66,000 66,000 65,000 65,000 65,000 65,000 64,000 64,000 64,000 64,000 64,000 64,000 63,000 63,000 63,000 62,000 61,000 61,000 61,000 61,000 60,000 60,000 60,000 59,000 59,000 59,000 59,000 58,000 58,000 56,000 56,000 53,000  53,000 53,000 53,000  53,000 53,000 53,000 53,000 52,000 52,000 51,000 51,000 50,000 50,000 50,000 50,000 50,000 40,000 
      additional paid-in capital
    		242,344,000 239,883,000 237,550,000 235,010,000 231,909,000 225,240,000 222,122,000 217,617,000 211,782,000 209,139,000 207,340,000 204,957,000 202,807,000 200,129,000 198,211,000 195,593,000 192,564,000 191,087,000 187,083,000 179,161,000 174,929,000 173,729,000 171,954,000 170,028,000 168,150,000 165,981,000 162,231,000 158,404,000 157,008,000 154,524,000 152,850,000 149,006,000 146,320,000 136,053,000 134,156,000 118,150,000  116,725,000 116,131,000 115,407,000  114,103,000 113,387,000 112,653,000 112,025,000 111,084,000 110,364,000 109,397,000 108,626,000 100,749,000 99,841,000 99,016,000 98,527,000 98,250,000 21,131,000 
      accumulated other comprehensive income
    		34,000 37,000 75,000 98,000 149,000           -149,000 -86,000 -53,000 -20,000 53,000 100,000 119,000                                  
      treasury stock
    		-163,367,000 -152,660,000 -135,405,000 -130,870,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,486,000 -80,455,000 -61,888,000 -53,832,000 -47,642,000 -42,040,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -30,486,000 -23,981,000 -20,486,000 -20,486,000 -16,210,000 -15,213,000 -4,000,000  -4,000,000 -4,000,000 -800,000                
      retained earnings
    		101,754,000 97,880,000 95,826,000 105,706,000 82,235,000 73,754,000 74,396,000 82,656,000 62,851,000 53,191,000 54,856,000 61,152,000 47,427,000 42,638,000 44,997,000 37,103,000 31,840,000 30,769,000 29,700,000 22,834,000                      -7,582,000 3,744,000 7,082,000 8,840,000 8,344,000 12,194,000 12,516,000 12,448,000 10,795,000 10,245,000 10,316,000 8,762,000 3,498,000 2,875,000 
      total stockholders’ equity
    		180,832,000 185,207,000 198,113,000 210,010,000 233,873,000 218,513,000 216,037,000 219,808,000 194,029,000 181,782,000 181,503,000 185,338,000 169,303,000 161,861,000 180,966,000 178,779,000 176,739,000 179,826,000 186,340,000 171,624,000 163,985,000 157,417,000 138,265,000 136,013,000 134,754,000 127,460,000 119,920,000 113,378,000 109,595,000 102,361,000 91,474,000 82,531,000 68,268,000 58,413,000 58,082,000 83,751,000 87,381 89,036,000 90,260,000 92,300,000 96,954 106,464,000 117,064,000 119,658,000 120,800,000 119,367,000 122,516,000 121,865,000 120,969,000 111,443,000 110,004,000 109,198,000 106,999,000 101,460,000 23,688,000 
      total liabilities and stockholders’ equity
    		209,645,000 212,275,000 225,394,000 242,792,000 262,705,000 249,043,000 244,265,000 252,974,000 222,661,000 209,674,000 207,967,000 217,039,000 200,121,000 191,476,000 211,776,000 213,690,000 208,788,000 209,344,000 215,218,000 204,314,000 194,537,000 185,972,000 190,612,000 188,774,000 190,587,000 183,465,000 180,022,000 179,841,000 181,613,000 174,245,000 155,857,000 161,744,000 149,039,000 141,510,000 141,356,000 97,684,000  104,825,000 103,594,000 104,308,000  118,108,000 128,677,000 130,899,000 133,917,000 135,617,000 142,968,000 143,817,000 142,969,000 119,336,000 118,931,000 118,755,000 120,612,000 112,956,000 33,638,000 
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2024 and 2023
    		                                                       
      accumulated other comprehensive loss
    		     -61,000 -60,000 -44,000 -183,000 -127,000 -271,000 -349,000 -509,000 -515,000 -418,000        -332,000 -37,000 -26,000 -2,000 -73,000      -77,000 -91,000 -101,000 -85,000  -45,000 -53,000 -50,000  -87,000 -97,000 -92,000 -80,000 -75,000 -57,000 -63,000 -66,000 -63,000 -44,000 -16,000 -44,000 -31,000 -18,000 
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2023 and 2022
    		                                                       
      goodwill and other intangible assets
    		           12,790,000 12,819,000 12,822,000 12,824,000 12,827,000 12,830,000 12,833,000 12,835,000 12,839,000                                    
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2022 and 2021
    		                                                       
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2021 and 2020
    		                                                       
      other assets
    		                365,000                                       
      other liabilities
    		                550,000                                       
      prepaid expenses and other assets, current
    		                 4,265,000                                      
      accrued expenses and other liabilities, current
    		                 8,397,000                                      
      lease liabilities, current
    		                 1,473,000 1,428,000                                     
      contract liabilities, current
    		                 1,117,000 1,136,000                                     
      prepaid expenses and other current assets
    		                  4,470,000 4,950,000 4,959,000 4,987,000 5,187,000 4,047,000 3,148,000 2,247,000 3,170,000 2,810,000 2,329,000 1,720,000 1,545,000 1,342,000 1,663,000 1,507,000 1,272,000 4,366,000  4,520,000 4,287,000 4,359,000  4,694,000 6,528,000 4,607,000 4,428,000 4,234,000 3,479,000 2,277,000 1,741,000 1,515,000 1,306,000 1,451,000 984,000 3,060,000 3,774,000 
      deferred tax assets, non-current
    		                  11,699,000 11,030,000 11,454,000 12,231,000 16,932,000 16,897,000 17,120,000 17,033,000 17,769,000 18,318,000 18,082,000 19,444,000 8,309,000 7,902,000 1,711,000 1,021,000 885,000           447,000 447,000 447,000 447,000 106,000 119,000 119,000 119,000 148,000 148,000 
      accrued expenses and other current liabilities
    		                  7,756,000 11,816,000 8,654,000 6,771,000 6,156,000 9,869,000 8,519,000 5,525,000 5,112,000 8,019,000 6,646,000 5,157,000 3,990,000 9,322,000 7,657,000 6,272,000 5,233,000 5,764,000  6,625,000 5,271,000 4,185,000  4,642,000 5,836,000 5,385,000 5,248,000 7,168,000 9,217,000 7,959,000 9,492,000 4,778,000 3,587,000 4,143,000 4,787,000 4,613,000 5,362,000 
      contract liabilities, non-current
    		                  96,000 88,000 104,000 97,000 8,805,000 13,120,000 15,175,000 19,632,000 23,231,000 26,539,000 30,727,000 33,124,000 37,239,000                         
      other non-current liabilities
    		                  431,000 430,000 672,000 496,000 277,000 278,000 277,000 278,000 278,000 236,000 242,000 240,000 255,000 358,000 411,000 598,000 637,000 2,171,000  2,229,000 2,252,000 2,083,000  2,085,000 2,079,000 2,073,000 2,224,000 1,812,000 1,838,000 3,864,000 3,890,000 4,000 5,000 6,000 8,000   
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2020 and 2019
    		                                                       
      other intangible assets
    		                    53,000 57,000 61,000 65,000 171,000 327,000 484,000 640,000 796,000 954,000 1,112,000 1,269,000 1,427,000 2,058,000 2,216,000 4,699,000  6,206,000 6,468,000 6,729,000  7,314,000 7,660,000 8,006,000 8,352,000 8,937,000 9,620,000 10,303,000 10,987,000       
      accumulated earnings
    		                    19,381,000 13,994,000                                  
      accumulated deficit
    		                      -2,932,000 -3,553,000 -2,944,000 -8,093,000 -11,812,000 -14,466,000 -16,885,000 -21,542,000 -37,286,000 -45,922,000 -57,547,000 -61,395,000 -60,816,000 -30,367,000  -23,673,000 -21,847,000 -22,286,000                
      cash, cash equivalents and restricted cash
    		                       26,387,000 29,696,000                               
      contract assets
    		                       501,000 1,090,000 1,936,000 1,107,000 4,083,000 3,237,000 5,984,000 4,948,000                         
      contract assets, non-current
    		                       191,000     108,000 108,000                          
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2019 and december 31, 2018
    		                                                       
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at september 30, 2019 and december 31, 2018
    		                                                       
      restricted cash
    		                          97,000 97,000 509,000 808,000 1,205,000 2,664,000 2,908,000 521,000 1,058,000 5,543,000  5,207,000 3,832,000 6,161,000  6,674,000 4,465,000 4,634,000 4,636,000 5,650,000 7,557,000 5,183,000 5,271,000 2,938,000 2,284,000 5,518,000 246,000   
      income taxes receivable
    		                                                       
      restricted cash, non-current
    		                         88,000 86,000 86,000 86,000 86,000 85,000 182,000 182,000 3,301,000 3,065,000 3,999,000  5,101,000 5,441,000 5,323,000  3,952,000 1,067,000 1,380,000 2,244,000 2,277,000 2,311,000 5,521,000 5,555,000 2,588,000 3,461,000 3,526,000 19,000   
      income taxes payable
    		                         32,000     429,000 432,000 142,000 137,000 89,000 42,000  32,000 29,000 29,000  21,000 26,000 20,000 13,000 38,000 45,000 49,000 350,000 38,000 108,000 111,000 1,657,000 540,000 455,000 
      accrued warranty reserve
    		                         599,000 571,000 478,000 409,000 389,000 359,000 366,000 314,000 394,000 411,000 1,256,000  1,018,000 943,000 864,000  744,000 763,000 867,000 1,028,000 883,000 850,000 708,000 605,000 312,000 295,000 296,000 270,000 248,000 250,000 
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at june 30, 2019 and december 31, 2018
    		                                                       
      income tax receivable
    		                          4,000 15,000 205,000 145,000                          
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at march 31, 2019 and december 31, 2018
    		                                                       
      lease liability
    		                           926,000                            
      current portion of long-term debt
    		                            12,000 12,000 12,000 11,000 11,000 11,000 10,000    21,000 53,000  117,000 128,000 128,000 128,000 128,000 128,000 128,000 265,000 128,000 128,000 128,000 172,000 172,000 172,000 
      long-term debt, less current portion
    		                            7,000 10,000 13,000 16,000                        
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2018 and 2017
    		                                                       
      accumulated comprehensive loss
    		                           -133,000 -101,000 -194,000 -168,000 -125,000                        
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at september 30, 2018 and december 31, 2017
    		                                                       
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at june 30, 2018 and december 31, 2017
    		                                                       
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at march 31, 2018 and december 31, 2017
    		                                                       
      unbilled receivables, current
    		                               1,413,000 573,000 914,000 1,804,000       2,173,000 4,211,000 4,979,000 2,278,000 1,868,000 2,378,000 6,155,000 5,544,000 6,315,000 4,629,000 4,092,000 4,948,000 3,576,000 2,693,000 
      cost and estimated earnings in excess of billings
    		                               4,998,000 4,453,000 440,000                      
      deferred revenue, current
    		                               5,611,000          520,000              
      deferred tax liabilities, non-current
    		                                2,428,000 2,173,000 2,109,000 1,762,000  1,678,000 1,634,000 1,575,000   317,000 317,000 317,000           
      deferred revenue, non-current
    		                               59,006,000 60,223,000 65,231,000 66,462,000 255,000  86,000 230,000 222,000  238,000 216,000 286,000            
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding at december 31, 2017 and 2016
    		                                                       
      deferred revenue
    		                                6,230,000 6,455,000 6,772,000 740,000  2,232,000 1,563,000 1,499,000   330,000 619,000 2,341,000 4,016,000 4,149,000 5,537,000 4,628,000 1,549,000 2,643,000 2,699,000 4,000,000 594,000 487,000 
      long-term debt, net of current portion
    		                                19,000 30,000 33,000                     
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding
    		                                                       
      unbilled receivables, non-current
    		                                   178,000  460,000         1,060,000   229,000 355,000 2,652,000 1,929,000 119,000 2,544,000 
      unbilled receivables
    		                                   3,481,000  1,961,000 1,264,000 929,000                
      land and building held for sale
    		                                   1,345,000  1,417,000 1,581,000 1,650,000                
      current portion of capital lease obligations
    		                                   4,000  24,000 37,000 53,000  98,000 119,000 129,000 160,000 182,000 189,000 196,000 203,000 36,000 39,000 37,000 37,000 36,000 37,000 
      consolidated balance sheet data:
    		                                                       
      long-term liabilities
    		                                    4,317    3,880               
      capital lease obligations, non-current
    		                                       7,000  24,000 37,000 60,000 144,000 231,000 276,000 325,000 369,000  7,000 17,000 27,000 36,000 46,000 
      notes receivable from stockholders
    		                                     -24,000 -24,000 -24,000  -23,000 -23,000 -38,000 -38,000 -38,000 -37,000 -36,000 -90,000 -88,000 -88,000 -168,000   1,000 
      long-term debt
    		                                          21,000 53,000 85,000 117,000 149,000 181,000 246,000 245,000 277,000 309,000 385,000 428,000 471,000 
      deferred income taxes
    		                                         580,000              
      prepaid income taxes
    		                                                 749,000 1,065,000     
      intangible assets
    		                                                 309,000 308,000 315,000 321,000 323,000 329,000 
      liability for early exercise of stock options
    		                                                      1,000 
      customer deposits
    		                                                     2,739,000 835,000 
      preferred stock, 0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding
    		                                                       
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.