Quarterly report pursuant to Section 13 or 15(d)

STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited)

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STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total
Beginning balance, value at Dec. 31, 2019 $ 422,398 $ 6,293,069 $ 4,864,817 $ (344,204) $ 11,236,080
Balance beginning (in shares) at Dec. 31, 2019 42,239,788        
Issuance of stock-based compensation $ 92 59,910 60,002
Issuance of stock-based compensation (in shares) 9,189        
Compensation expense related to stock options 300,966 300,966
Issuance upon options exercised $ 1,750 83,750 85,500
Issuance upon options exercised (in shares) 175,000        
Net loss 449,428 449,428
Ending balance, value at Mar. 31, 2020 $ 424,240 6,737,695 5,314,245 (344,204) 12,131,976
Balance ending (in shares) at Mar. 31, 2020 42,423,977        
Beginning balance, value at Dec. 31, 2019 $ 422,398 6,293,069 4,864,817 (344,204) 11,236,080
Balance beginning (in shares) at Dec. 31, 2019 42,239,788        
Net loss         (626,610)
Ending balance, value at Jun. 30, 2020 $ 466,401 34,886,850 4,238,207 (344,204) 39,247,254
Balance ending (in shares) at Jun. 30, 2020 46,640,120        
Beginning balance, value at Mar. 31, 2020 $ 424,240 6,737,695 5,314,245 (344,204) 12,131,976
Balance beginning (in shares) at Mar. 31, 2020 42,423,977        
Issuance of stock-based compensation $ 80 59,922 60,002
Issuance of stock-based compensation (in shares) 7,999        
Compensation expense related to stock options 363,851 363,851
Litigation settlement options 347,008 347,008
Litigation settlement share issuance 952 937,142 938,094
Litigation settlement share issuance (in shares) 95,238        
Issuance upon options exercised $ 5,192 5,189 10,381
Issuance upon options exercised (in shares) 519,156        
Capital raise $ 35,937 26,436,043 26,471,980
Capital raise (in shares) 3,593,750        
Net loss (1,076,038) (1,076,038)
Ending balance, value at Jun. 30, 2020 $ 466,401 34,886,850 4,238,207 (344,204) 39,247,254
Balance ending (in shares) at Jun. 30, 2020 46,640,120        
Beginning balance, value at Dec. 31, 2020 $ 466,801 35,880,986 3,652,754 (3,843,562) 36,156,979
Balance beginning (in shares) at Dec. 31, 2020 46,680,119        
Issuance of stock-based compensation $ 101 56,149 56,250
Issuance of stock-based compensation (in shares) 10,124        
Compensation expense related to stock options 677,934 677,934
Litigation settlement share issuance 952 937,142 938,094
Litigation settlement share issuance (in shares) 95,238        
Issuance upon options exercised $ 11,106 1,218,894 1,230,000
Issuance upon options exercised (in shares) 1,110,580        
Net loss (1,276,138) (1,276,138)
Ending balance, value at Mar. 31, 2021 $ 478,960 38,771,105 2,376,616 (3,843,562) 37,783,119
Balance ending (in shares) at Mar. 31, 2021 47,896,061        
Beginning balance, value at Dec. 31, 2020 $ 466,801 35,880,986 3,652,754 (3,843,562) 36,156,979
Balance beginning (in shares) at Dec. 31, 2020 46,680,119        
Net loss         (2,400,687)
Ending balance, value at Jun. 30, 2021 $ 479,106 39,376,131 1,252,067 (3,843,562) 37,263,742
Balance ending (in shares) at Jun. 30, 2021 47,910,676        
Beginning balance, value at Mar. 31, 2021 $ 478,960 38,771,105 2,376,616 (3,843,562) 37,783,119
Balance beginning (in shares) at Mar. 31, 2021 47,896,061        
Issuance of stock-based compensation $ 146 97,050 97,196
Issuance of stock-based compensation (in shares) 14,615        
Compensation expense related to stock options 441,841 441,841
Compensation expense related to restricted stock awards 66,135 66,135
Issuance upon options exercised
Net loss (1,124,549) (1,124,549)
Ending balance, value at Jun. 30, 2021 $ 479,106 $ 39,376,131 $ 1,252,067 $ (3,843,562) $ 37,263,742
Balance ending (in shares) at Jun. 30, 2021 47,910,676