7Baggers

Lightbridge Corporation
(NASDAQ:LTBR) 

LTBR stock logo

Lightbridge Corporation, together with its subsidiaries, develops nuclear fuel technology under the Lightbridge Fuel name. It focuses on developing and commercializing metallic nuclear fuels that could enhance resistance of nuclear fuel in existing and new nuclear reactors with a meaningful impact o...

Founded: 1992
Full Time Employees: 13
Sector: Industrials
Industry: Electrical Equipment & Parts

Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 
                                                                         
      revenue
                                                                         
      yoy
    NaN%    NaN%  NaN% NaN% NaN%  NaN% NaN% NaN%  NaN% NaN% NaN%  NaN% NaN% NaN%  NaN% NaN%                                              
      qoq
          NaN% NaN%   NaN% NaN%   NaN% NaN%   NaN% NaN%   NaN% NaN%   NaN%                                           
      operating expenses
                                                                         
      general and administrative
    4,334,520 4,869,584 3,164,343 2,502,637 3,480,010 2,833,952 1,676,209 1,792,613 2,157,745 2,077,884 1,609,142 1,596,818 1,865,929 2,112,901 2,023,937 1,439,684 1,913,564 2,071,798 1,763,060 1,515,899 1,782,860 1,511,691 2,835,471 2,028,667 1,936,755 1,645,985 1,463,568 1,230,154 1,357,762 1,149,356 1,889,401 1,453,030 2,223,590 1,053,626 1,149,847 971,290 1,208,303 1,879,061 1,106,125 1,112,582 1,096,109 2,244,020 1,067,166 1,108,807 931,643 3,834,586 285 1,149,420 1,131,419 672,084 881,778 3,841,370 183 1,246,233 75 6,342,590 87 1,480,471 1,727,186 1,942,132 2,543,647 2,372,263 6,271,565 1,550,994 1,140,223 1,037,495 2,478,894 1,597,941 1,519,046 
      research and development
    3,347,627 3,864,864 2,039,857 1,639,864 1,665,913 1,366,942 1,298,601 909,612 1,023,823 555,215 552,751 366,855 448,044 68,648 172,871 165,476 262,823 284,102 439,630 273,314 369,450 124,128 261,898 115,776 389,824 554,706.5 751,473 545,118 922,235 578,281 864,060 538,031 911,034 367,162.5 458,663 545,644 464,343         33.5 42     13.75 92  39 7.75 36             
      total operating expenses
    7,682,147 8,734,448 5,204,200 4,142,501 5,145,923 4,200,894 2,974,810 2,702,225 3,181,568 2,633,099 2,161,893 1,963,673 2,313,973 2,181,549 2,196,808 1,605,160 2,176,387 2,380,840 2,202,690 1,789,213 2,152,310 7,005,463 3,097,369 2,144,443 2,326,579 2,103,315 2,215,041 1,775,272 2,279,997 2,294,609 2,753,461 1,991,061 3,134,624 1,867,914 1,608,510 1,516,934 1,672,646 3,176,444 1,547,999 1,532,080 1,682,359 2,817,726 1,370,078 1,503,522 1,144,474   1,773,868 1,563,405 1,287,365 1,525,051   1,764,593    2,019,626 2,226,826 2,504,915 2,701,884 2,577,006 2,898,848 3,011,209 2,901,692 2,716,486 4,075,501 3,176,105 3,013,510 
      operating income
    -7,682,147 -8,734,448 -5,204,200 -4,142,501 -5,145,923 -4,200,894 -2,974,810 -2,702,225 -3,181,568 -1,602,127.75 -2,161,893 -1,963,673  -1,425,041.5 -2,125,473 -1,521,659  -1,393,554.25 -1,913,806 -1,611,419  -1,884,682 -3,067,707 -2,144,443 -2,326,579 -2,293,637.25 -2,522,586 -3,432,215 -3,219,748 -3,318,763 -4,293,621 -3,577,475 -3,762,608 -1,865,578 -1,602,738 -1,506,809 -1,622,524 -3,070,293 -1,508,699                     -1,710,336 -2,002,497 -1,683,364 -2,067,686 -2,291,213 -1,360,053 -1,520,951 808,690 -611,167 -846,389 
      yoy
    49.29% 107.92% 74.94% 53.30% 61.74% 162.21% 37.60% 37.61%  12.43% 1.71% 29.05%  2.26% 11.06% -5.57%  -26.06% -37.61% -24.86%  -17.83% 21.61% -37.52% -27.74% -30.89% -41.25% -4.06% -14.43% 77.89% 167.89% 137.42% 131.90% -39.24% 6.23%                         -25.35% 47.24% 10.68% -355.68% 274.89% 60.69%     
      qoq
    -12.05% 67.83% 25.63% -19.50% 22.50% 41.22% 10.09% -15.07% 98.58% -25.89% 10.09%   -32.95% 39.68%   -27.18% 18.77%   -38.56% 43.05% -7.83% 1.44% -9.08% -26.50% 6.60% -2.98% -22.70% 20.02% -4.92% 101.69% 16.40% 6.37% -7.13% -47.15% 103.51%                      -14.59% 18.96% -18.59% -9.76% 68.46% -10.58% -288.08% -232.32% -27.79%  
      operating margin %
    NaN% -Infinity% -Infinity% -Infinity% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% 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% 
      other income
                                        20                     291            
      interest income
    1,337,308 1,544,798 1,104,955 622,067 374,911 264,207 318,649 327,591 361,984 263,085 322,065 291,449 256,365 178,970 87,943 19,017 3,505 1,944 1,551 1,322 3,309 4,404 4,645 12,337 62,493 77,421 81,172 125,298 109,221 95,741 79,035 60,462 23,557     22 19                     3,809 896 152 705 5,197 13,492 3,028 19,113 53,898  
      total other income
    1,337,308 1,544,798 1,104,955 622,067 374,911 264,207 318,649 327,591 361,984 263,085 322,065 291,449 256,365 178,970 87,943 19,017 3,505 1,944 1,551 1,322 37,003 4,404 4,645 12,337 62,493                                             
      net loss before income taxes
    -6,344,839 -7,189,650 -4,099,245 -3,520,434 -4,771,012 -3,936,687 -2,656,161 -2,374,634 -2,819,584 -2,370,014 -1,839,828 -1,672,224 -2,026,580 -1,908,156 -2,037,530 -1,502,642 -2,049,529 -2,301,325 -1,912,255 -1,610,097 -2,011,988    -2,264,086         -1,988,378 -1,733,548 -1,637,663 -1,745,308 -3,209,749 -1,503,517                     -1,670,964 -2,003,585 -1,683,758   -1,346,950 -1,522,461    
      income taxes
                                                                      -24,799 1,111 30,828 
      net income
    -6,344,839 -7,189,650 -4,099,245 -3,520,434 -4,771,012 -3,936,687 -2,656,161 -2,374,634 -2,819,584 -2,370,014 -1,839,828 -1,672,224 -2,026,580 -1,908,156 -2,037,530 -1,502,642 -2,049,529 -2,301,325 -1,912,255 -1,610,097 -2,011,988 -6,958,012 -3,063,062 -2,132,106 -2,264,086 -1,728,266 -2,441,414 -3,306,917 -3,110,527 -3,223,022 -4,214,586 -3,517,013 -4,721,487 -1,988,378 -1,733,548 -1,637,663 -1,745,308 -3,209,749 -1,503,517             29.75 211   18.25 71 -1,161,932  -1,670,964 -2,003,585 -1,683,758 -2,076,978 -2,286,923 -1,346,950 -1,522,461 852,602 -997,130 -787,935 
      yoy
    32.99% 82.63% 54.33% 48.25% 69.21% 66.10% 44.37% 42.00% 39.13% 24.20% -9.70% 11.29% -1.12% -17.08% 6.55% -6.67% 1.87% -66.93% -37.57% -24.48% -11.13% 302.60% 25.46% -35.53% -27.21% -46.38% -42.07% -5.97% -34.12% 62.09% 143.12% 114.76% 170.52% -38.05% 15.30%                 63.01% 197.18%   -100.00% -100.00% -30.99%  -26.93% 48.75% 10.59% -343.60% 129.35% 70.95%     
      qoq
    -11.75% 75.39% 16.44% -26.21% 21.19% 48.21% 11.86% -15.78% 18.97% 28.82% 10.02% -17.49% 6.21% -6.35% 35.60% -26.68% -10.94% 20.35% 18.77% -19.97% -71.08% 127.16% 43.66% -5.83% 31.00% -29.21% -26.17% 6.31% -3.49% -23.53% 19.83% -25.51% 137.45% 14.70% 5.85% -6.17% -45.62% 113.48%              -85.90%    -74.30% -100.01%   -16.60% 18.99% -18.93% -9.18% 69.79% -11.53% -278.57% -185.51% 26.55%  
      net income margin %
    NaN% -Infinity% -Infinity% -Infinity% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% NaN% -Infinity% NaN% NaN% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% Infinity% Infinity% NaN% NaN% Infinity% Infinity% -Infinity% NaN% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% -Infinity% -Infinity% 
      net loss per common share
                                                                         
      basic and diluted
    -0.2 -0.25 -0.16 -0.16 -0.24 -0.24 -0.19 -0.17 -0.21 -0.18 -0.15 -0.14 -0.17   -0.14 -0.2    -0.33 -1.37 -0.8  -0.74    -0.09     -0.18 -0.16 -0.17 -0.2                                 
      weighted-average number of common shares outstanding
    32,043,868 24,517,972  22,257,221 19,547,312 14,487,834  13,930,032 13,491,954 12,099,574   11,673,736 10,834,574 11,085,657   7,035,510 6,759,662 6,595,483 6,589,392 4,216,568 4,053,644 3,486,566 3,294,998 3,107,580 3,222,226 36,774,571 34,631,048  29,506,791 25,702,352 19,231,578  10,836,115 9,911,864 9,138,014                                 
      weighted-average number of common shares outstanding
    32,043,868 24,517,972  22,257,221 19,547,312 14,487,834  13,930,032 13,491,954 12,099,574   11,673,736 10,834,574 11,085,657   7,035,510 6,759,662 6,595,483 6,589,392 4,216,568 4,053,644 3,486,566 3,294,998 3,107,580 3,222,226 36,774,571 34,631,048  29,506,791 25,702,352 19,231,578  10,836,115 9,911,864 9,138,014                                 
      basic and diluted
      25,624,598    14,189,787    12,252,342 11,773,594    10,523,238                                                      
      the accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
                                                                         
      other operating income
                                                                         
      contributed services - research and development
                31,028 94,423 71,335 83,501                                                      
      total other operating income
                31,028 94,423 71,335 83,501 123,353 77,571 288,884 177,794 103,319                                                 
      total operating loss
                -2,282,945    -2,053,034    -2,048,991                                                 
      distribution from joint venture
                     9,641  110,000                                                  
      foreign currency transaction gain
                                                                         
      accumulated preferred stock dividend
                     -78,153 -135,091 -133,313 -131,434 -129,867 -128,937 -128,238 -125,911 -124,144 -123,455 -121,703 -120,815 -127,520 -119,000 -119,000 -112,902 -129,578 -49,000 -49,000 -49,000 -47,911 -32,667                               
      deemed additional dividend on preferred stock dividend due to the beneficial conversion feature
                     -43,802.75 -59,314 -58,408 -57,489     -53,466 -53,047                                           
      net loss attributable to common stockholders
                 -1,397,425.25 -2,037,530 -1,502,642  -1,527,347.25 -2,106,660 -1,801,818  -2,001,972.75 -3,247,939 -2,315,638 -2,444,314 -2,345,265.75 -2,617,916 -3,480,434 -3,282,713 -3,886,660.5 -4,382,959 -3,685,386 -7,490,359 -1,315,879.75 -1,782,548 -1,686,663 -1,794,308 -937,348.5 -2,117,484                               
      net loss per common share, basic and diluted
                 -0.133 -0.18   -0.23 -0.31 -0.27      -0.768 -0.81 -0.09  -0.158 -0.15 -0.14 -0.39     -0.228 -0.44                     -0.14 -0.19 -0.17    -0.01    
      additional deemed dividend on preferred stock due to the beneficial conversion feature
                                                                         
      contributed services – research and development
                    123,353                                                     
      net loss attributable to common shareholders
                    -2,049,529    -2,200,911                                                 
      weighted-average number of common shares outstanding – basic and diluted
                    10,283,280                                                     
      grant income
                     114,999.25 288,884 67,794 103,319 43,047 29,662                                               
      foreign transaction gain
                        33,694                                                 
      other operating income and
                                                                         
      other income from joint venture
                             -193,098 247,568 305,375 355,281 265,997 203,180 187,031 400,343                                     
      equity in loss from joint venture
                             490,726 -555,113 -1,962,318 -1,295,032 -1,290,151 -1,743,340 -1,773,445 -1,028,327                                     
      total other operating income and
                         43,047 29,662   297,628 -307,545 -1,656,943  -938,639.5 -1,540,160 -1,586,414                                      
      income before income taxes
                         -1,864,813.5 -3,063,062 -2,132,106  -2,214,714.5 -2,441,414 -3,306,917 -3,110,527 -3,113,271.5 -4,214,586 -3,517,013 -4,721,487                   29.75 211   18.25 71             
      deemed additional dividend on preferred stock dividend due the beneficial conversion feature
                         -41,387.75 -55,940 -55,294    -51,814  -33,763.25 -49,373 -49,373 -31,134                                     
      net loss per common share basic and diluted
                           -0.66                                              
      deemed additional dividend on preferred stock dividend due to beneficial conversion feature
                            -54,317    -51,371                                         
      net loss per common share,
                                                                         
      basic and diluted
    -0.2 -0.25 -0.16 -0.16 -0.24 -0.24 -0.19 -0.17 -0.21 -0.18 -0.15 -0.14 -0.17   -0.14 -0.2    -0.33 -1.37 -0.8  -0.74    -0.09     -0.18 -0.16 -0.17 -0.2                                 
      other income and
                                                                         
      financing costs
                                    -982,436 -106,709 -130,828 -130,877 -122,804 -105,695 -73,279                               
      total other income and
                             77,421 81,172 125,298 109,221 95,741 79,035 60,462 -958,879 -122,800 -130,810 -130,854 -122,784 -139,456 5,182 174,635 1,249,333 -435,837 1,080,598     603 388         140,769            
      deemed dividend on issuance on series b convertible preferred stock due to the beneficial conversion feature
                                                                         
      deemed dividend on issuance on series b convertible preferred stock due to beneficial conversion feature
                                 -656,209                                        
      total other operating income and loss
                                -939,751    -627,984                                     
      consulting revenue
                                     10,400 15,136 14,425 135,485 388,435 83,219 122,377 166,546 254,311 234,163 298,162 123,895   349,131 254,107 658,859 515,950   981,016    2,292,549 1,578,094 2,050,456 1,962,295 2,399,132 2,132,292 2,009,548 3,430,485 2,944,053 6,746,500 4,301,500 3,815,125 
      cost of consulting services provided
                                     8,064 9,364 4,300 85,363 282,284 43,919 62,137 68,225 242,285 118,954 275,662 57,391   230,974 125,012 365,704 284,337   607,780    1,575,624 1,093,019 1,255,877 1,262,908 1,505,490 1,301,130 1,289,552 1,888,846 1,748,518 1,862,309 1,736,562 1,648,004 
      gross margin
                                     2,336 5,772 10,125 50,122 106,151 39,300 60,240 98,321 12,026 115,209 22,500 66,504   118,157 129,095 293,155 231,613   373,236    716,925 485,075 794,579 699,387 893,642 831,162 719,996 1,541,639 1,195,535 4,884,191 2,564,938 2,167,121 
      yoy
                                     -97.80% -85.31% -83.19% -49.02% 782.68% -65.89% 167.73% 47.84%   -80.96% -48.48%     -21.46%    -47.94%    -19.77% -41.64% 10.36% -54.63% -25.25% -82.98% -71.93% -28.86%     
      qoq
                                     -59.53% -42.99% -79.80% -52.78% 170.10% -34.76% -38.73% 717.57% -89.56% 412.04% -66.17%    -8.47% -55.96% 26.57%        47.80% -38.95% 13.61% -21.74% 7.52% 15.44% -53.30% 28.95% -75.52% 90.42% 18.36%  
      gross margin %
    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% NaN% NaN% NaN% NaN% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% NaN% NaN% Infinity% Infinity% Infinity% Infinity% NaN% NaN% Infinity% NaN% NaN% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      revenue:
                                                                         
      deemed dividend on issuance of series b convertible preferred stock due to beneficial conversion feature
                                    -2,624,836                                     
      warrant revaluation
                                         28,632 78,442 311,645 1,253,854 -435,629 1,083,495                           
      warrant modification expense
                                         -33,029                                
      investment income
                                     15.25 18 23    274  122 164 163    603 388  15,556   81,510    140,478 105,822           
      other expenses
                                         -15.5                        -546        
      deemed dividend on convertible preferred stock, due to beneficial conversion feature
                                         -145,325 -581,300                               
      research and development expenses
                                         1,297,383 441,874 419,498 586,250 573,706 302,912 394,715 212,831   624,448 431,986 615,281 643,273   518,360    539,155 499,640 562,783 158,237 204,743 294,247 325,044 559,112 453,805 211,779 154,788 130,661 
      weighted-average number of shares outstanding
                                 26,636,250    10,424,481    4,728,943 4,804,044  19,657,528 18,239,302 18,170,152 18,082,874 18,082,874 15,463,392  15,067,885 15,058,163 12,555,156 12,529,045 12,491,106  12,491,750  12,376,548  12,362,929 12,353,251           
      weighted-average shares outstanding
                                           4,273,031                              
      net income before income taxes
                                                             -1,161,932         827,803 -996,019 -757,107 
      net earnings per common share,
                                                                         
      basic and diluted
                                                                         
      consolidated statements of income data:
                                                                         
      revenues
                                                 25 100     25 100  100 25 100             
      costs and expenses:
                                                                         
      cost of revenues
                                                 14 49     15.5 63  61 16 51             
      gross profit
                                                 11 51     9.5 37  39 49             
      total costs and expenses
                                                 120.75 327     42.75 275  114 28.5 123             
      income from operations
                                                       33.25 238   19.5 74             
      other income and expense
                                                                         
      benefit from income taxes
                                                                         
      total other income and expenses
                                                      14,516   76,421     103,012 39,372 -1,088 -394 -9,292 4,290 13,103 -1,510 19,113 -384,852 89,282 
      investment income, interest income and other
                                                        27                 
      interest income and other
                                                       3.5   13               
      investment income and other
                                                           1.25             
      net income per common share, basic and diluted
                                                             -0.09     -0.128 -0.23      
      other
                                                               35,563 -1,984         
      weighted average number of shares outstanding for the period used to compute per share data -
                                                               11,703,932 10,296,694  10,021,429 10,140,767      
      weighted average number of shares outstanding for the period used to compute per share data
                                                                 10,168,412    301,667,403    
      general and administrative - stock-based compensation
                                                                  916,741 1,135,171      
      realized loss on marketable securities
                                                                       -438,750  
      foreign currency transaction loss
                                                                  -1,458.5 -907      
      net income ( loss) before income taxes
                                                                  -1,289,083.5 -2,286,923      
      other comprehensive income
                                                                         
      unrealized gain on marketable securities
                                                                         
      total comprehensive income
                                                                  -1,289,083.5 -2,286,923   1,289,836   
      stock-based compensation
                                                                    1,202,357 1,225,186 1,384,828 1,423,376 1,363,803 
      realized loss on marketable securities and other
                                                                    -389     
      unrealized loss on marketable securities
                                                                         
      total comprehensive loss
                                                                    -1,346,950 -1,522,461  -899,750 -888,830 
      weighted average number of shares outstanding for the period
                                                                    301,841,722     
      other income and expenses
                                                                     -4,538    
      other incomes
                                                                         
      other comprehensive income unrealized gain marketable securities
                                                                      437,234   
      weighted-average number of shares outstanding for the period used to compute per share data
                                                                      299,615,349 299,366,947 299,064,014 
      total revenue
                                                                       4,301,500 3,815,125 
      unrealized gain marketable securities
                                                                       128,208 -131,723 
      interest income/expense, other
                                                                        89,282 
    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 2015-12-31 2015-09-30 2015-06-30 2014-12-31 2014-06-30 2014-03-31 2013-06-30 2013-03-31 2012-12-31 2011-12-31 2011-06-30 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 2008-06-30 2008-03-31 
                                                                    
        assets
                                                                    
        current assets
                                                                    
        cash and cash equivalents
      215,671,445 201,862,421 153,330,134 97,901,357 56,929,988 39,990,827 26,634,951 27,067,039 27,942,421 28,598,445 29,235,892 28,204,016 28,051,303 28,899,997 31,284,501 29,268,074 28,226,863 24,747,613 16,133,652 13,855,982 15,236,151 21,531,665 17,410,899 17,056,313 16,334,353 17,958,989 20,581,978 20,975,684 23,528,241 24,637,295 25,328,649 25,707,368 21,973,862 4,515,398 4,214,386 3,992,160 5,215,035 3,584,877 3,214,065 1,484,099 623,184 1,675,673 2,371,266 4,220,225 987,954 2,177,072 586,016 1,082,948 2,197,555 3,569,098 1,294,332 3,569,526 3,569,526 3,077,451 2,000,134 3,028,791 3,872,046 4,910,717 4,375,361 10,360,068 5,185,597 4,705,577 
        prepaid expenses and other current assets
      1,465,618 712,983 1,293,501 460,913 546,267 324,378 403,922 302,668 401,859 207,063 252,403 355,619 393,437 115,264 305,919 409,339 558,777 113,452 247,211 389,461 637,651 172,460 164,652 254,652 344,652 47,371 97,033 154,804 194,059 36,745 121,201 107,861 146,612 70,067 97,567 131,317 165,067 80,933 135,222 189,511 168,029 112,569 203,795       269,697             
        total current assets
      217,137,063 202,575,404 154,623,635 98,362,270 57,476,255 40,315,205 27,038,873 27,369,707 28,344,280 28,805,508 29,488,295 28,559,635 28,444,740 29,015,261 31,590,420 29,677,413 28,785,640 24,861,065 16,490,863 15,030,443 15,873,802 21,704,125 17,575,551 17,310,965 16,679,005 18,406,360 21,312,419 21,637,762 24,081,101 24,767,293 25,971,122 26,230,186 22,609,159 5,087,033 4,932,334 4,739,593 6,072,920 4,659,424 4,037,664 1,778,327 1,256,842 2,368,947 3,147,710 5,219,676 2,307,412 3,718,038 3,410,481 4,374,238 5,525,839 9,814,712 12,561,560 16,062,392 16,062,392 4,862,508 5,975,064 6,676,148 7,458,859 10,126,599 10,141,670 11,235,583 5,401,728 6,986,389 
        other assets
                                                                    
        prepaid project costs and other long-term assets
      1,673,316 1,140,000 327,148 491,719 702,562 528,805 472,875 476,250 479,625 483,000 486,375 489,750                                                   
        trademarks
      127,007 119,391 114,982 114,981 108,865 108,865 108,865 108,865 108,865 108,865 108,865 108,225 108,225 108,225 107,757 107,757 101,583 101,583 101,583 100,217 85,562                                          
        total assets
      218,937,386 203,834,795 155,065,765 98,968,970 58,287,682 40,952,875 27,620,613 27,954,822 28,932,770 29,397,373 30,083,535 29,157,610 28,897,965 29,468,486 31,698,177 29,785,170 28,887,223 24,962,648 16,592,446 15,130,660 15,959,364 21,789,687 19,400,877 19,067,471 18,481,912 20,204,844 23,038,272 23,408,341 25,767,283 26,344,714 28,182,891 30,152,086 28,260,324 6,945,993 6,866,124 6,752,107 8,135,956 6,802,375 6,264,676 2,826,845 2,207,436 3,262,134 4,031,485 6,053,236 3,072,126 4,443,626 4,089,262 5,020,293 6,143,656 10,518,787 13,164,015 16,551,782 16,551,782 5,331,853 6,428,004 7,136,038 7,927,391 10,595,482 10,600,889 13,932,635 7,462,128 7,233,978 
        liabilities and stockholders’ equity
                                                                    
        current liabilities
                                                                    
        accounts payable and accrued liabilities
      1,291,564 847,451 1,560,097 1,194,377 966,209 424,585 1,159,566 932,832 907,421 486,326 875,639 592,719 575,978 350,331 1,190,386 482,661 452,826 171,521 1,107,865 539,095 634,037 382,130 1,815,791 893,938 485,693 350,299 1,195,892 468,706 614,622 258,056 1,389,124 1,405,341 1,291,777 1,151,210 1,328,393 1,002,339 1,159,163 1,216,321 951,705 1,343,984 1,182,371 608,346 452,571 653,668 854,848 636,742 422,942 393,619 385,223 1,680,433 1,477,010 1,634,889 1,634,889 1,546,336 1,575,718 2,162,221 2,081,323 3,637,997 3,542,581 3,010,118 2,799,489 2,645,888 
        total current liabilities
      1,291,564 847,451 1,560,097 1,194,377 966,209 424,585 1,159,566 932,832 907,421 486,326 875,639 592,719 575,978 350,331 1,190,386 482,661 452,826 171,521 1,107,865 1,214,095 634,037 4,582,130 1,815,791 893,938 485,693 350,299 1,686,618 468,706 687,917 476,319 1,389,124 1,405,341 1,291,777 1,151,210 1,328,393 1,002,339 1,159,163 1,216,321 979,082 1,412,020 1,182,371 608,346 452,571 653,668 854,848 636,742 422,942 393,619 385,223 1,680,433          6,280,118 2,812,680 3,138,983 
        commitments and contingencies - note 5
                                                                    
        stockholders’ equity
                                                                    
        preferred stock, 0.001 par value...
                                        1,020 1,020 1,020 1,020 1,020                        
        common stock, 0.001 par value...
      35,000 33,407 30,385 25,545 21,557 18,784 15,276 14,591 14,190 13,698 12,934 12,485 12,126 11,900 11,540 11,009 10,589 9,759  6,595 6,591 6,567 4,417 3,809 3,364 3,252 3,249 37,606 36,149 32,863 30,501 28,622 23,928 12,738 11,427 9,912 9,716 7,112 5,183 4,800 18,629 18,523 18,083 18,083 15,072 15,064 12,556 12,549  12,427  12,334 12,334     301,842     
        additional paid-in capital
      407,720,844 386,719,120 330,050,816 270,225,336 226,255,770 204,694,348 186,693,926 184,599,393 183,228,519 181,295,125 179,222,724 176,740,340 174,825,571 173,595,385 173,077,225 169,834,944 167,464,610 161,772,641 150,163,990 146,684,313 146,482,966 146,353,232 139,121,290 136,647,267 134,338,275 133,932,615 133,701,433 132,813,643 131,647,886 129,329,674 127,034,386 124,774,561 119,483,933 93,602,539 91,358,420 89,838,423 89,427,982 86,266,075 82,598,391 77,101,722 72,853,744 71,873,603                     
        accumulated deficit
      -190,110,022 -183,765,183 -176,575,533 -172,476,288 -168,955,854 -164,184,842 -160,248,155 -157,591,994 -155,217,360 -152,397,776 -150,027,762 -148,187,934 -146,515,710 -144,489,130 -142,580,974 -140,543,444 -139,040,802 -136,991,273 -134,689,948 -132,777,693 -131,167,596 -129,155,608 -121,544,000 -118,480,938 -116,348,832 -114,084,746 -112,356,480 -109,915,066 -106,608,149 -103,497,622 -100,274,600 -96,060,014 -92,543,001 -87,821,514 -85,833,136 -84,099,587 -82,461,925 -80,716,617 -77,506,867                -50,407,044 -48,723,286 -46,646,308 -44,359,385  -39,563,035 -40,415,637  
        total stockholders’ equity
      217,645,822 202,987,344 153,505,668 97,774,593 57,321,473 40,528,290 26,461,047 27,021,990 28,025,349 28,911,047 29,207,896 28,564,891 28,321,987 29,118,155 30,507,791  28,434,397 24,791,127 15,484,581    17,585,086 18,173,533 17,996,219  21,351,654 22,939,635 25,079,366      5,537,731                            
        total liabilities and stockholders’ equity
      218,937,386 203,834,795 155,065,765 98,968,970 58,287,682 40,952,875 27,620,613 27,954,822 28,932,770 29,397,373 30,083,535 29,157,610 28,897,965 29,468,486 31,698,177  28,887,223 24,962,648 16,592,446    19,400,877 19,067,471 18,481,912  23,038,272 23,408,341 25,767,283      6,866,124                            
        commitments and contingencies – note 5
                                                                    
        the accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
                                                                    
        prepaid project costs
                  345,000 345,000                                                 
        commitments and contingencies
                                                                    
        liabilities and stockholders' equity
                                                                    
        stockholders' equity
                                                                    
        total stockholders' equity
                     29,302,509    13,916,565 15,325,327 17,207,557    19,854,545    25,868,395 26,793,767 28,746,745 26,968,547 5,794,783  5,749,768 6,976,793 5,557,590 5,097,727 1,103,170  762,222 3,578,914 5,399,568 2,217,278 3,806,884 3,666,320 4,626,674 5,758,433 8,838,354 11,108,605 14,916,893 14,916,893 3,572,217 4,852,286 4,973,817 5,846,068 6,957,485 7,058,308 7,652,517 4,649,448 4,094,995 
        total liabilities and stockholders' equity
                     29,785,170    15,130,660 15,959,364 21,789,687    20,204,844    26,344,714 28,182,891 30,152,086 28,260,324 6,945,993  6,752,107 8,135,956 6,802,375 6,264,676 2,826,845 2,207,436 3,262,134 4,031,485 6,053,236 3,072,126 4,443,626 4,089,262 5,020,293 6,143,656 10,518,787 13,164,015 16,551,782 16,551,782 5,331,853 6,428,004 7,136,038 7,927,391 10,595,482 10,600,889 13,932,635 7,462,128 7,233,978 
        commitments and contingencies - note 4
                                                                    
        accrued legal settlement costs
                         675,000  4,200,000                                         
        convertible series a preferred shares, 0 and 699,878 shares issued and outstanding at december 31, 2021 and 2020, respectively
                                                                    
        convertible series b preferred shares, 0 and 2,666,667 shares issued and outstanding at december 31, 2021 and 2020
                                                                    
        other receivables
                        110,000 785,000                                           
        preferred stock, 0.001par value, 10,000,000authorized shares
                                                                    
        convertible series a preferred shares,663,767shares and 699,878 shares issued and outstanding at september 30, 2021 and december 31, 2020, respectively
                        663                                            
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at september 30, 2021 and december 31, 2020
                        2,667                                            
        common stock
                        7,209                              12,526  12,363   10,308 10,168 10,168 10,154  301,842 301,395 299,395 299,334 
        convertible series a preferred shares, 683,852 shares and 699,878 shares issued and outstanding at june 30, 2021 and december 31, 2020, respectively
                         683                                           
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at june 30, 2021 and december 31, 2020
                         2,667                                           
        convertible series a preferred shares, 699,878 shares issued and outstanding at march 31, 2021 and december 31, 2020, respectively
                          699                                          
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at march 31, 2021 and december 31, 2020
                          2,667                                          
        other receivable from joint venture
                               400,000 633,408 507,274 358,801 93,253 521,272 414,957 488,685                              
        patents and trademarks
                           85,562                                         
        commitments and contingencies - note 7
                                                                    
        convertible series a preferred shares, 699,878 shares and 757,770 shares issued and outstanding at december 31, 2020 and 2019, respectively
                           699                                         
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at december 31, 2020 and 2019
                           2,667                                         
        patent costs
                            1,825,326 1,756,506 1,802,907 1,798,484 1,725,853 1,706,192 1,686,182 1,577,421 1,539,881 1,506,672 1,462,492 1,367,692 1,319,718 1,275,637 1,203,354 1,160,465 1,121,771 1,048,518 950,594 893,187 883,775              241,845      
        commitments and contingencies –
                                                                    
        convertible series a preferred shares, 712,126 and 757,770 shares issued and outstanding at september 30, 2020 and december 31, 2019, respectively
                            712                                        
        convertible series b preferred shares, 2,666,667 issued and outstanding at september 30, 2020 and december 31, 2019,
                            2,667                                        
        convertible series a preferred shares, 728,816 and 757,770 shares issued and outstanding at june 30, 2020 and december 31, 2019, respectively
                             728                                       
        convertible series b preferred shares, 2,666,667 issued and outstanding at june 30, 2020 and december 31, 2019,
                             2,667                                       
        convertible series a preferred shares, 745,896 and 757,770 shares issued and outstanding at march 31, 2020 and december 31, 2019, respectively
                              745                                      
        convertible series b preferred shares, 2,666,667 issued and outstanding at march 31, 2020 and december 31, 2019,
                              2,667                                      
        total other assets
                               1,798,484    1,577,421 1,539,881 1,506,672 1,462,492 1,858,960 1,933,790 2,012,514 2,063,036            600,596 657,561 542,627 410,047 410,047 385,202 362,332 362,331 367,393 361,763 357,102 2,485,771 2,033,191 219,924 
        investee losses in excess of investment
                                490,726  73,295 218,263                                 
        commitments and contingencies - note 6
                                                                    
        convertible series a preferred shares, 757,770 shares and 813,624 shares issued and outstanding at december 31, 2019 and 2018, respectively
                               757                                     
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at december 31, 2019 and 2018
                               2,667                                     
        convertible series a preferred shares, 785,877 shares and 813,624 shares issued and outstanding at september 30, 2019 and december 31, 2018, respectively
                                785                                    
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at september 30, 2019 and december 31, 2018
                                2,667                                    
        investment in joint venture
                                 64,387   671,888 2,415,228 4,188,673                              
        convertible series a preferred shares, 785,877 shares and 813,624 shares issued and outstanding at june 30, 2019 and december 31, 2018, respectively
                                 785                                   
        convertible series b preferred shares, 2,666,667 shares issued and outstanding at june 30, 2019 and december 31, 2018
                                 2,667                                   
        convertible series a preferred shares, 813,624 shares and 813,624 shares issued and outstanding at march 31, 2019 and december 31, 2018, respectively
                                  813                                  
        convertible series b preferred shares, 2,666,667 and 2,666,667 shares issued and outstanding at march 31, 2019 and december 31, 2018, respectively
                                  2,667                                  
        accounts receivable - project revenue and reimbursable project expenses
                                                                    
        deferred financing costs
                                       491,168 491,168 491,168 491,168 491,168                         
        convertible series a preferred shares, 813,624 shares and 1,020,000 shares issued and outstanding at december 31, 2018 and 2017, respectively
                                   813                                 
        convertible series b preferred shares, 2,666,667 and 0 shares issued and outstanding at december 31, 2018 and 2017, respectively
                                   2,667                                 
        accounts receivable - project revenue and reimbursable project costs
                                        15,136 10,889 87,614  83,219 69,696  255,035 247,144  408,231 507,738 663,229 418,113 601,803 277,211 1,290,392 1,271,360 1,271,360 1,132,656 2,647,233 2,421,088 2,070,121 3,898,475 4,319,212    
        total liabilities
                                    1,389,124 1,405,341 1,291,777 1,151,210 1,328,393 1,002,339 1,159,163 1,244,785 1,166,949 1,723,675 3,706,504 2,499,912         2,055,410 1,634,889 1,634,889 1,759,636 1,575,718 2,162,221 2,081,323 3,637,997 3,542,581 6,280,118 2,812,680 3,138,983 
        convertible series a preferred shares, 813,624 shares and 1,020,000 shares issued and outstanding at september 30, 2018 and december 31, 2017, respectively
                                    813                                
        convertible series b preferred shares, 2,666,667 and 0 shares issued and outstanding at september 30, 2018 and december 31, 2017, respectively
                                    2,667                                
        convertible series a preferred shares, 908,740 shares and 1,020,000 shares issued and outstanding at june 30, 2018 and december 31, 2017, respectively
                                     909                               
        convertible series b preferred shares, 2,666,667 and 0 shares issued and outstanding at june 30, 2018 and december 31, 2017, respectively
                                     2,667                               
        convertible series a preferred shares, 1,020,000 shares issued and outstanding at march 31, 2018 and december 31, 2017
                                      1,020                              
        convertible series b preferred shares, 2,666,667 and 0 shares issued and outstanding at march 31, 2018 and december 31, 2017, respectively
                                      2,667                              
        restricted cash
                                        114,077 114,059 114,036 114,012 113,990 35,021 325,832 325,670 325,505 325,181 555,562 555,187 554,452 554,092 553,682 551,883 551,190 263,619 263,619 263,300 652,174 652,174 651,409 650,000 650,000    
        accounts receivable - project revenue and reimbursable project
                                       10,400    388,434   139,797                      
        long-term liabilities
                                                                    
        deferred lease abandonment liability
                                           28,464 67,354 112,700 196,938                      
        convertible preferred stock, 0.001 par value...
                                       1,020                             
        commitments and contingencies – note 4
                                                                    
        derivative warrant liability
                                            120,513 198,955 2,327,195                      
        deferred financing cost
                                            491,168                        
        note payable
                                            27,377 68,036                       
        warrant liability
                                               1,891,566                     
        property plant and equipment -net
                                                    4,831  17,221   79,343 79,343 84,143 90,608 97,559 101,139  102,117 211,281 27,209  
        additional paid-in capital - stock and stock equivalents
                                                82,016,278 81,276,339                   
        marketable securities
                                                  16,523 16,165 1,085,039 1,612,716 1,598,209 5,146,823 8,613,011 10,429,252 10,429,252          
        accounts receivable - project revenue and reimbursable
                                                 469,086                   
        prepaid expenses & other current assets
                                                 205,184 339,142 461,876 521,745 706,369 574,590  812,635 528,635 528,635 389,101 675,523 574,095 865,283 667,407 797,097 115,586 216,131 232,158 
        patent costs - net
                                                 833,560 764,714 725,588 673,950  600,596 537,075 422,141 289,561 289,561 264,716 241,845 241,845  236,215 234,277 217,875 217,875  
        additional paid in capital - stock and stock equivalents
                                                  76,369,046 76,303,552 72,169,379 72,105,896 71,955,631 70,946,951 70,098,180 68,917,377 68,917,377 56,539,091 54,836,265 54,108,685 52,996,913 51,086,020 49,902,488 46,744,676 44,530,174 43,156,026 
        deficit
                                                        -59,087,438 -54,082,318 -54,082,318 -52,410,629     -43,012,435   -39,418,507 
        liabilities and stockholders equity
                                                                    
        commitments and contingencies –note 6
                                                                    
        common stock reserved for issuance, 2,264 shares at december 31, 2012
                                                                    
        property plant and equipment –net
                                                     11,102              27,665 
        patent costs – net
                                                     634,953              217,875 
        security deposits
                                                       120,486 120,486 120,486 120,486 120,486 120,487 120,486 125,548 125,548 122,825 140,467 140,467 2,049 
        common stock reserved for issuance, 2,264 shares and 17,120 shares at december 31, 2012 and december 31, 2011, respectively
                                                      3,125              
        property, plant and equipment -net
                                                       46,514 59,828       107,120     
        deferred revenue
                                                        578,400   213,300      3,270,000   
        common stock reserved for issuance, 17,120 shares and 6,451 shares at december 31, 2011 and
                                                                    
        december 31, 2010, respectively
                                                       34,750             
        common stock reserved for issuance, 19,226 shares and 6,451 shares at june 30, 2011 and december 31, 2010, respectively
                                                        85,500            
        common stock reserved for issuance, 10,087 shares and 5,721 shares at september 30, 2010 and december 31, 2009, respectively
                                                         69,500 69,500          
        common stock reserved for issuance, 4,204 shares and 5,721 shares at june 30, 2010 and december 31, 2009, respectively
                                                           34,750         
        deferred stock compensation
                                                           -601,303 -721,367 -456,500 -548,941 -180,289 -168,587 -409,168 -417,485 -430,278 
        common stock reserved for issuance, 135,318 and 5,721 shares at march 31, 2010 and december 31, 2009, respectively
                                                            1,134,264        
        common stock reserved for issuance, 5,721 shares and 16,135 shares (restated for reverse stock split of 1 for 30, prior to reverse stock split was 484,055 shares) at december 31, 2009 and 2008, respectively
                                                             34,750       
        common stock reserved for issuance, 3,869 shares and 16,135 shares (restated for reverse stock split of 1 to 30) at september 30, 2009 and december 31, 2008, respectively
                                                              34,250      
        common stock reserved for issuance, 505,972 shares and 484,055 shares at june 30, 2009 and december 31, 2008, respectively
                                                               109,297     
        common stock reserved for issuance, 152,174 shares and 484,055 shares at march 31, 2009 and december 31, 2008, respectively
                                                                35,000    
        accounts receivable - reimbursable project costs
                                                                 759,929   
        deferred project costs
                                                                   51,729 
        marketable securities - available for sale
                                                                 2,127,429 1,674,849 1,996,925 
        current portion long term debt
                                                                    
        customer deposit and other current liabilities
                                                                  13,191 493,095 
        notes payable - long term
                                                                    
        common stock reserved for issuance, 484,055 shares and 2,000,000 shares at september 30, 2008 and december 31, 2007, respectively
                                                                 114,787   
        accumulated other comprehensive income
                                                                 463,862 26,628 -101,580 
        common stock reserved for issuance, 2,127,626 shares and 2,000,000 shares at june 30, 2008 and december 31, 2007, respectively
                                                                  626,373  
        preferred stock, -.001 par value...
                                                                    
        common stock reserved for issuance, 2,000,000 shares at march 31, 2008 and december 31, 2007
                                                                   590,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-06-30 2014-03-31 2013-06-30 2013-03-31 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 
                                                                     
          operating activities
                                                                     
          net loss
        -6,344,839 -7,189,650 -4,099,245 -3,520,434 -4,771,012 -3,936,687 -2,656,161 -2,374,634 -2,819,584 -2,370,014 -1,839,828 -1,672,224 -2,026,580 -1,908,156 -2,037,530 -1,502,642 -2,049,529 -2,301,325 -1,912,255 -1,610,097 -2,011,988 -6,958,012 -3,063,062 -2,132,106 -2,264,086 -1,728,266 -2,441,414 -3,306,917 -3,110,527 -3,223,022 -4,214,586 -3,517,013 -4,721,487 -1,988,378 -1,733,553 -1,637,658 -1,745,308 -3,209,749              -1,671,689 -2,003,585 -1,683,758 -2,076,978 -2,286,923 -1,346,950 -1,522,461    
          adjustments to reconcile net loss to net cash from operating activities:
                                                                     
          stock-based compensation
        2,497,269 2,043,349 1,640,569 750,892 1,355,181 808,634 388,477 384,216 456,904 355,830 300,729 316,798 284,360 228,337 175,659 173,772 264,936 525,910 54,180     6,085 6,085 231,157 19,378 237,272 335,013 428,511 529,649 148,710 1,273,035 594,821 170,605 198,249 229,631 1,040,587 392,872 365,096 185,456 863,877 235,413   65,501 59,796  147,163             
          changes in operating assets and liabilities:
                                                                     
          prepaid expenses and other current assets
        -827,635 505,518 -581,782 40,354 -266,889 34,544 57,940 99,191 -194,796 45,340 103,216 37,818 -278,173 190,655 103,420 149,438 -445,325 133,759 142,250 248,190 -465,191 -7,808 90,000 90,000 -297,281 49,662 57,771                         -139,534 286,422 -101,428 291,188 -210,746 126,967 -387,189 100,545 16,027 -28,123 
          prepaid project costs and other long-term assets
        -533,316 -812,852 164,571 210,843 -173,757 -55,930 3,375 3,375 3,375 3,375 3,375                                                   
          accounts payable and accrued liabilities
        438,113 -712,646 365,720 213,168 556,624 -734,981 226,734 25,411 676,095 -389,313 282,920 16,741 440,647 -840,055 707,725 29,835 296,305 -921,344 568,770 -109,942 321,597 -1,433,661 921,853 408,245 135,394 -845,593 727,186 -145,916 356,566 -1,131,068 -16,217 113,564 140,567 -4,349 212,842 -126,802 78,262 263,319 -392,875 -273,982 505,498                     
          net cash from operating activities
        -4,770,408 -6,166,281 -2,510,167 -2,305,177 -3,299,853 -3,824,420 -1,943,829 -1,847,441 -1,878,006 -2,339,782 -1,134,588 -1,430,617 -1,579,746 -2,659,219 -1,035,726 -1,134,597 -1,933,613 -2,243,006 -1,132,055 -1,365,514 -6,295,514 -2,996,338 -2,038,269 -1,515,926 -2,019,888 -2,550,358 -1,208,100 -1,362,461 -1,546,778 -2,122,953 -2,077,469 -1,368,815 -1,851,952 -1,415,700 -1,084,586 -1,362,953 -1,140,089 -2,067,210              -1,431,170 711,314 -1,028,657 -891,016 -1,030,569 549,333 -1,188,481 5,819,249 157,944 -3,244,731 
          capital expenditures
                     
          free cash flows
        -4,770,408 -6,166,281 -2,510,167 -2,305,177 -3,299,853 -3,824,420 -1,943,829 -1,847,441 -1,878,006 -2,339,782 -1,134,588 -1,430,617 -1,579,746 -2,659,219 -1,035,726 -1,134,597 -1,933,613 -2,243,006 -1,132,055 -1,365,514 -6,295,514 -2,996,338 -2,038,269 -1,515,926 -2,019,888 -2,550,358 -1,208,100 -1,362,461 -1,546,778 -2,122,953 -2,077,469 -1,368,815 -1,851,952 -1,415,700 -1,084,586 -1,362,953 -1,140,089 -2,067,210              -1,431,170 711,314 -1,028,657 -891,016 -1,030,569 549,333 -1,188,481 5,819,249 157,944 -3,244,731 
          investing activities
                                                                     
          trademarks
        -7,616 -4,409 -1          -468                                               
          net cash from investing activities
        -7,616 -4,409 -1          -468   -1,366   -71,744 -68,820 -65,449 -4,423 -72,631 -19,661 -2,120,010 -1,548,761 -437,540 -33,209 -44,180 -5,311,800 -47,974 -44,081 -72,283 -42,889 -38,694            -39,051 1,926,476 -10,415,459   -1,818 -6,693 -13,977 -16,402    
          financing activities
                                                                     
          proceeds from sale of common stock in public offerings
        19,215,191                                                             
          issuance costs related to sale of common stock in public offerings
        -628,143                                                             
          net proceeds from the exercise of stock options
         1,126,044 610,419 412,678 220,697                                                         
          payments for taxes related to net share settlement of equity awards
         -1,924,200 -39,743 -194,878                                                         
          net cash from financing activities
        18,587,048 54,702,977 57,938,945 43,282,662 20,239,014 17,180,296 1,511,741 972,059 1,221,982 1,702,335 2,167,104 1,583,330 731,052 275,183 3,052,153 2,181,982 5,412,863 10,856,967    7,188,848 2,461,675 2,303,335 399,675 834,055 929,914 1,986,485 1,869,139 1,731,959 5,146,501 24,622,216 1,764,686 1,350,893 212,361 2,813,136 2,476,716 3,320,574 1,845,781 1,504,553 116,207          12,338,704   49,579    39,542 
          net increase in cash and cash equivalents
        13,809,024 48,532,287 55,428,777 40,971,369 16,939,161 13,355,876    -637,447 1,031,876 152,713 -848,694 -2,384,504 2,016,427 1,041,211 3,479,250         -2,622,989 -393,706 -2,552,557 -1,109,054 -691,354 -378,719 3,733,506 17,458,464 301,012 222,226 -1,222,875 1,630,158 370,812 1,729,966 732,834 128,081         -1,720,029 640,940           
          cash and cash equivalents, beginning of period
        201,862,421  39,990,827  28,598,445  28,899,997  24,747,613  21,531,665  17,958,989  24,637,295  4,515,398  3,584,877  623,184    3,672,877 2,197,555 2,373,421 3,028,791  5,580,244 9,907,691 
          cash and cash equivalents, end of period
        215,671,445  55,428,777 40,971,369 56,929,988  -432,088 -875,382 27,942,421  1,031,876 152,713 28,051,303  2,016,427 1,041,211 28,226,863  2,277,670 -1,380,169 15,236,151  354,586 721,960 16,334,353  -393,706 -2,552,557 23,528,241  -378,719 3,733,506 21,973,862  222,226 -1,222,875 5,215,035  1,729,966 732,834 751,265  -695,593   -1,189,118 2,177,072 -496,932 1,082,948 -1,720,029 3,014,361 492,075 1,077,317 2,000,134  -1,038,671 535,356 4,375,361 5,174,471 480,020 4,705,577 
          issuance costs paid related to sale of common stock in public offerings
                                                                     
          cash and cash equivalents, beginning of year
                                                                     
          cash and cash equivalents, end of year
                                                                     
          supplemental disclosure of cash flow information
                                                                     
          cash paid during the year:
                                                                     
          interest paid
                                              651 1,134 484                  -143 183 
          income taxes paid
                                                               266,000 1,111 30,828 
          non-cash financing activities:
                                                                     
          payment of accrued liabilities with common stock
         15,000 -240,000 255,000 215,000 15,000 15,000                                           
          common stock issued for prepaid consulting services
                                                                    
          gross proceeds from the issuances of common stock under the atm program
                                                                     
          payment of offering costs and commissions
                                                                     
          cash paid during the period:
                                                                     
          the accompanying notes are an integral part of these unaudited condensed consolidated financial statements
                                                                     
          net proceeds from the issuances of common stock
           42,909,727 20,213,195    1,221,982    731,052    5,412,863                                             
          adjustments to reconcile net loss to net cash from operating activities
                                                                     
          common stock issued for services
             60,000 35,806   15,000 15,000   15,000 15,000   209,994 15,000 -39,690 69,690                                        
          changes in operating assets and liabilities
                                                                     
          non-cash financing activities
                                                                     
          common stock issued for consulting services
                                                                    
          adjustments to reconcile net loss from operations to net cash from operating activities:
                                                                     
          net proceeds from the issuances of common stock and tax payments for share settlement of equity awards
              1,511,741                                                       
          the accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
                                                                     
          net decrease in cash and cash equivalents
               -875,382 -656,024          2,277,670 -1,380,169 -6,295,514  354,586 721,960 -1,624,636                            1,077,317 -1,028,657   535,356 -1,204,883  157,944 -3,205,189 
          net proceeds from the issuance of common stock
                  2,167,104              399,675 834,055 929,914 1,986,485 1,869,139 1,731,959 5,146,501 20,722,215 1,650,609 1,350,911 212,384 2,813,160 2,504,115 640,202 1,595,148 1,396,339 116,369                    
          prepaid project costs
                                                                     
          accrued legal settlement costs
                         -675,000 675,000 -4,200,000                                         
          accumulated preferred stock dividend
                         116,662 194,405 191,721 188,923 186,512 184,877 183,532 180,228 177,610 176,502 173,517 172,186 315,412 119,000 70,631 144,036 129,578 49,000 49,000 49,000 47,911                        
          exchanges of preferred stock series a and b to common stock
                                                                     
          adjustments to reconcile net loss from operations to net cash from operating activities
                                                                     
          changes in operating working capital items
                                                                     
          other receivables
                          675,000                                           
          net proceeds from issuances of common stock and exercise of stock options
                              2,461,675                                       
          cash paid during the period
                                                                     
          conversion of series a convertible preferred stock to common stock and payment of paid-in-kind dividends to series a preferred stockholder
                          22,712    15,039 14,057 8,975 96,255   206,169                                
          changes in operating working capital items:
                                                                     
          net proceeds from issuances of common stock
                                                                     
          supplemental disclosure of cash flow information:
                                                                     
          patent write-off and impairment loss
                                                                     
          amortization of patents
                                                                     
          other receivable from joint venture
                             400,000 233,408 -126,134 -148,473 -265,548 428,019 -106,315 73,728 -488,685                             
          patent write-offs
                                                                     
          patents and trademarks
                          -1,366                                           
          common stock issued for services and stock-based compensation
                            60,068 45,231                                        
          equity in loss from joint venture
                                 -490,726 555,113 1,962,318 1,295,032 1,290,151 1,743,340 1,773,445 1,028,327                             
          investment in joint venture
                                 -2,100,000 -1,440,000 -400,000 -5,217,000                             
          net proceeds from the issuance of common stock and exercise of stock options
                                                                     
          conversion of series a convertible preferred stock and payment of paid-in-kind dividends to common stock
                                                                     
          patent write-off
                                                                    
          patent costs
                              -68,820 -65,449 -4,423 -72,631 -19,661 -20,010 -108,761 -37,540 -33,209 -44,180 -94,800 -47,974 -44,081 -72,283 -42,889 -38,694              -24,845   -5,630 -1,938 -16,402    
          operating activities:
                                                                     
          investing activities:
                                                                     
          financing activities:
                                                                     
          write off of deferred financing costs
                                       982,436                             
          accounts receivable - fees and reimbursable project costs
                                     10,400 4,736 -4,247 76,725 300,820 -305,215 -13,523    -7,891     -245,116 183,690  85,597       1,038,592    
          net proceeds from the issuance of preferred stock
                                     3,900,001                            
          cash paid during the year
                                                                     
          deemed dividend on issuance series b convertible preferred stock due to beneficial conversion feature
                                                                   
          non-cash financing activity:
                                                                     
          deemed dividend on issuance series b convertible preferred stock due to the beneficial conversion feature
                                                                     
          prepaid expenses and other assets
                                    -157,314 84,456 -13,340 38,751 -76,545 27,500 33,750 33,750 -84,134 54,289    -55,459 91,226                   
          deemed dividend on series b convertible preferred stock due to beneficial conversion feature
                                        2,624,836                             
          the accompanying notes are an integral part of these condensed consolidated financial statements.
                                                                     
          amortization of deferred financing costs
                                           122,805 122,804                         
          abandonment loss
                                         -71,972                            
          implied interest expense on deferred lease abandonment liability
                                                                     
          deferred lease abandonment liability
                                         -116,957 3,460 -30,022 -42,164 -64,546                        
          restricted cash
                                         114,077 -18 -23 -24 -22 -78,969             -319          
          interest
                                                                     
          income taxes
                                                                     
          decrease in accrued liabilities - stock-based compensation
                                                                   
          amortization of deferred financing cost
                                                                     
          warrant revaluation
                                                                     
          warrant modification expense
                                             33,029                       
          proceeds from the issuance of note payable
                                             135,000                     
          repayment of note payable
                                             -27,377                        
          deferred financing costs
                                                                     
          warrant liability – reclassification to equity
                                                                     
          deemed dividend on convertible preferred stock due to beneficial conversion feature
                                                                     
          deferred financing cost - paid with stock purchase warrants
                                                                     
          warrant liability - reclassification to equity
                                                                    
          deemed dividend on convertible preferred stock, due to beneficial conversion feature
                                                                     
          warrant liability
                                                                     
          decrease in accrued liabilities – stock-based compensation
                                            121,720                         
          warrant revaluation income
                                                                     
          shares issued for offering costs
                                                                     
          payments for stock offering costs
                                                                     
          net income
                                                                  852,602 -997,130 -787,935 
          adjustments to reconcile net income from operations to net cash from operating activities:
                                                                     
          changes in non-cash operating working capital items:
                                                                     
          loss on marketable securities
                                                                     
          accounts receivable - fees and reimburseable project costs
                                                           -138,704 1,514,577 -226,145  1,828,354      
          proceeds from the sale of marketable securities
                                                                     
          warrant liability - fair value of warrants exercised
                                                                     
          cash flows from operating activities:
                                                                     
          unrealized gain on marketable securities
                                                                     
          cash flows from investing activities:
                                                                     
          payments for patent costs
                                                                     
          cash flows from financing activities:
                                                                     
          supplemental disclosure of non-cash flow financing activities
                                                                     
          shares issued for stock offering costs
                                                                     
          net cash outflow
                                                                     
          1.
                                                                     
          adjustments to reconcile net loss from operations to net cash used
                                                                     
          depreciation and amortization
                                                       6,271 6,119 6,617 7,297 4,800 6,465 6,951 5,398 7,044 7,036 6,004 8,126 456 3,011 
          accounts payable, accrued liabilities and other current
                                                                     
          purchase of marketable securities
                                                                     
          net cash from (used in) investing activities
                                                                     
          unrealized and realized (gains) loss on marketable securities
                                                                     
          accounts payable, accrued liabilities and other current liabilities
                                                     218,107 160,113 29,323 8,396   88,639 -28,381 116,147 80,898 -1,556,674 95,416 -1,596,398 -992,731 150,086 523,239 
          adjustments to reconcile net loss from operations to net cash from
                                                                     
          (gains) loss on marketable securities
                                                                     
          stock based compensation
                                                          404,377 677,256 722,516 859,576   1,246,127 1,272,971    
          unrealized and realized (gains) and losses on marketable securities
                                                                     
          property and equipment
                                                              -1,818 -1,063      
          proceeds from the issuance of common stock
                                                                     
          unrealized (gains) loss on marketable securities
                                                        3,359             
          adjustments to reconcile net loss from operations to net cash used in operating activities:
                                                                     
          unrealized gains on marketable securities
                                                                     
          deferred revenue
                                                         -356,840 837,130           
          grant of common stock for payment of accrued liabilities
                                                           85 1,001 702,651        
          net cash inflow
                                                                     
          item 1.
                                                                     
          (gains) losses on marketable securities
                                                                     
          proceeds from sale of marketable securities
                                                                     
          proceeds from the issuance of common stock - net of offering costs
                                                                     
          redemption of common stock into treasury stock
                                                                     
          retirement of treasury stock
                                                                     
          item 4.
                                                                     
          marketable securities
                                                                     
          unrealized loss on marketable securities
                                                          37,756           
          prepaid expenses, deferred project costs and other assets
                                                                     
          sales of marketable securities
                                                          1,949,893           
          non-cash financing activity
                                                                     
          gain on marketable securities - available for sale
                                                                     
          security deposits
                                                              5,062      
          deferred project costs - net
                                                                     
          proceeds from issue of common shares
                                                                  49,975 
          payments on notes payable and other
                                                                  -10,433 
          increase in restricted cash
                                                              -765       
          loss on marketable securities - available for sale
                                                                     
          reclassification of cash equivalents to marketable securities - available for sale
                                                                  -452,580 322,076 -1,996,925 
          deferred project costs – net
                                                                     
          proceeds from issuance of common shares
                                                                     
          cash paid during the period for:
                                                                     
          shares issued for other than cash for payment of expenses
                                                                  1,713,233 1,423,375 1,363,803 
          amortization of deferred revenue - net
                                                                     
          amortization of deferred project costs
                                                                  1,862,309 1,775,437 1,609,129 
          realized loss on marketable securities
                                                                     
          settlement expense
                                                                     
          accounts receivable - reimbursable project costs
                                                                     
          deferred project costs
                                                                  -1,862,309 -1,723,708 -1,289,227 
          purchase of office equipment
                                                                     
          other
                                                                     
          non-cash transactions:
                                                                     
          conversion of liabilities to equity
                                                                     
          amortization of deferred revenue
                                                                   -3,793,125 
          other current liabilities
                                                                   -479,904 -713,780 
          non-cash transactions
                                                                     
          unrealized loss on marketable securities – available for sale
                                                                    -131,723