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Consolidated Statements of Changes in Stockholders’ Equity (unaudited) - USD ($)
Series 1 Convertible Preferred Stock
Series 2 Convertible Preferred Stock
Common Stock
Additional Paid in Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2019 $ 855,955 $ 21,952,000 $ 1,779 $ 35,313,721 $ (48,155,180) $ 9,968,275
Balance (in Shares) at Dec. 31, 2019 171,191 21,952 17,783,960      
Provision for compensation expense related to stock options 171,815 171,815
Provision for compensation expense related to stock options (in Shares)      
Issuance of warrants in connection with consulting agreement 43,999 43,999
Issuance of warrants in connection with consulting agreement (in Shares)      
Exercise of warrants into common stock $ 10 131,240 131,250
Exercise of warrants into common stock (in Shares) 105,000      
Exchange offer of warrants $ 346 (346)  
Exchange offer of warrants (in Shares) 3,462,683      
Net income (loss) 51,685 51,685
Balance at Mar. 31, 2020 $ 855,955 $ 21,952,000 $ 2,135 35,660,429 (48,103,495) 10,367,024
Balance (in Shares) at Mar. 31, 2020 171,191 21,952 21,351,643      
Balance at Dec. 31, 2019 $ 855,955 $ 21,952,000 $ 1,779 35,313,721 (48,155,180) 9,968,275
Balance (in Shares) at Dec. 31, 2019 171,191 21,952 17,783,960      
Net income (loss)           (210,377)
Balance at Jun. 30, 2020 $ 851,660 $ 21,952,000 $ 2,136 36,214,871 (48,365,557) 10,655,110
Balance (in Shares) at Jun. 30, 2020 170,332 21,952 21,356,112      
Balance at Mar. 31, 2020 $ 855,955 $ 21,952,000 $ 2,135 35,660,429 (48,103,495) 10,367,024
Balance (in Shares) at Mar. 31, 2020 171,191 21,952 21,351,643      
Provision for compensation expense related to stock options 452,033 452,033
Provision for compensation expense related to stock options (in Shares)      
Issuance of warrants in connection with consulting agreement 95,481 95,481
Issuance of warrants in connection with consulting agreement (in Shares)      
Conversion of preferred stock to common stock $ (4,295) 4,295
Conversion of preferred stock to common stock (in Shares) (859) 1,136      
Exercise of stock options into common stock $ 1 2,633 2,634
Exercise of stock options into common stock (in Shares) 3,333      
Net income (loss) (262,062) (262,062)
Balance at Jun. 30, 2020 $ 851,660 $ 21,952,000 $ 2,136 36,214,871 (48,365,557) 10,655,110
Balance (in Shares) at Jun. 30, 2020 170,332 21,952 21,356,112      
Balance at Dec. 31, 2020 $ 851,660 $ 21,952,000 $ 2,136 36,843,326 (48,495,076) 11,154,046
Balance (in Shares) at Dec. 31, 2020 170,332 21,952 21,359,945      
Provision for compensation expense related to stock options 380,263 380,263
Provision for compensation expense related to stock options (in Shares)      
Issuance of warrants in connection with consulting agreement 212,923 212,923
Issuance of warrants in connection with consulting agreement (in Shares)      
Exercise of stock options into common stock $ 2 12,910 12,912
Exercise of stock options into common stock (in Shares) 16,000      
Net income (loss) 1,237 1,237
Balance at Mar. 31, 2021 $ 851,660 $ 21,952,000 $ 2,138 37,449,422 (48,493,839) 11,761,381
Balance (in Shares) at Mar. 31, 2021 170,332 21,952 21,375,945      
Balance at Dec. 31, 2020 $ 851,660 $ 21,952,000 $ 2,136 36,843,326 (48,495,076) 11,154,046
Balance (in Shares) at Dec. 31, 2020 170,332 21,952 21,359,945      
Net income (loss)           943,431
Balance at Jun. 30, 2021 $ 851,660 $ 21,952,000 $ 2,138 37,894,784 (47,551,645) 13,148,937
Balance (in Shares) at Jun. 30, 2021 170,332 21,952 21,381,278      
Balance at Mar. 31, 2021 $ 851,660 $ 21,952,000 $ 2,138 37,449,422 (48,493,839) 11,761,381
Balance (in Shares) at Mar. 31, 2021 170,332 21,952 21,375,945      
Provision for compensation expense related to stock options 249,222 249,222
Provision for compensation expense related to stock options (in Shares)      
Issuance of warrants in connection with consulting agreement 191,926 191,926
Issuance of warrants in connection with consulting agreement (in Shares)      
Exercise of stock options into common stock $ 0 4,214 4,214
Exercise of stock options into common stock (in Shares) 5,333      
Net income (loss) 942,194 942,194
Balance at Jun. 30, 2021 $ 851,660 $ 21,952,000 $ 2,138 $ 37,894,784 $ (47,551,645) $ 13,148,937
Balance (in Shares) at Jun. 30, 2021 170,332 21,952 21,381,278