XML 13 R6.htm IDEA: XBRL DOCUMENT v3.19.3
Condensed Statements of Stockholders' Equity (Unaudited) - USD ($)
Common Stock
Additional Paid-In Capital
Retained Earnings / Accumulated Deficit
Total
Beginning Balance at Dec. 31, 2017 $ 7,011 $ 64,777,620 $ (47,554,208) $ 17,230,423
Beginning Balance (in shares) at Dec. 31, 2017 7,011,128      
Exercise of stock options $ 118 275,145   275,263
Exercise of stock options (in shares) 117,852      
Cost of tender offer $ (1,250) (5,018,616)   (5,019,866)
Cost of tender offer (in shares) (1,250,000)      
Stock-based compensation   112,133   112,133
Net income (loss)     (225,029) (225,029)
Ending Balance at Mar. 31, 2018 $ 5,879 60,146,282 (47,779,237) 12,372,924
Beginning Balance at Dec. 31, 2017 $ 7,011 64,777,620 (47,554,208) 17,230,423
Beginning Balance (in shares) at Dec. 31, 2017 7,011,128      
Net income (loss)       (408,528)
Ending Balance at Sep. 30, 2018 $ 5,883 60,397,769 (47,962,736) 12,440,916
Ending Balance (in shares) at Sep. 30, 2018 5,883,109      
Beginning Balance at Mar. 31, 2018 $ 5,879 60,146,282 (47,779,237) 12,372,924
Exercise of stock options $ 4 4,032   4,036
Exercise of stock options (in shares) 4,129      
Cost of tender offer   (2,086)   (2,086)
Stock-based compensation   118,843   118,843
Net income (loss)     (138,242) (138,242)
Ending Balance at Jun. 30, 2018 $ 5,883 60,267,071 (47,917,479) 12,355,475
Ending Balance (in shares) at Jun. 30, 2018 5,883,109      
Stock-based compensation   130,698   130,698
Net income (loss)     (45,257) (45,257)
Ending Balance at Sep. 30, 2018 $ 5,883 60,397,769 (47,962,736) 12,440,916
Ending Balance (in shares) at Sep. 30, 2018 5,883,109      
Beginning Balance at Dec. 31, 2018 $ 5,883 $ 60,523,901 (48,125,349) 12,404,435
Beginning Balance (in shares) at Dec. 31, 2018 5,883,109      
Restricted stock grants 116 (116)    
Restricted stock grants (in shares) $ 116,050      
Stock-based compensation   $ 121,965   121,965
Net income (loss)     11,839 11,839
Ending Balance at Mar. 31, 2019 $ 5,999 60,645,750 (48,113,510) 12,538,239
Ending Balance (in shares) at Mar. 31, 2019 5,999,159      
Beginning Balance at Dec. 31, 2018 $ 5,883 60,523,901 (48,125,349) 12,404,435
Beginning Balance (in shares) at Dec. 31, 2018 5,883,109      
Stock-based compensation       392,008
Net income (loss)       225,927
Ending Balance at Sep. 30, 2019 $ 6,000 60,916,306 (47,899,422) 13,022,884
Ending Balance (in shares) at Sep. 30, 2019 5,999,643      
Beginning Balance at Mar. 31, 2019 $ 5,999 60,645,750 (48,113,510) 12,538,239
Beginning Balance (in shares) at Mar. 31, 2019 5,999,159      
Stock-based compensation   137,035   137,035
Net income (loss)     119,790 119,790
Ending Balance at Jun. 30, 2019 $ 5,999 60,782,785 (47,993,720) 12,795,064
Ending Balance (in shares) at Jun. 30, 2019 5,999,159      
Exercise of stock options $ 1 513   514
Exercise of stock options (in shares) 494      
Stock-based compensation   133,008   133,008
Net income (loss)     94,298 94,298
Ending Balance at Sep. 30, 2019 $ 6,000 $ 60,916,306 $ (47,899,422) $ 13,022,884
Ending Balance (in shares) at Sep. 30, 2019 5,999,643