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Condensed Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) - USD ($)
Common Shares
Treasury Shares
Common Shares
Additional Paid-in Capital
Retained Earnings (Accumulated Deficit)
Total
Balance at Dec. 31, 2018 $ 6,869   $ 19,867,259 $ (4,720,291) $ 15,153,837
Balance (in Shares) at Dec. 31, 2018 6,868,679        
Stock-based compensation expense for restricted stock awards and stock options   1,385,118 1,385,118
Issuance of common stock for consulting services $ 10   29,005 29,015
Issuance of common stock for consulting services (in Shares) 10,225        
Repurchases of common stock   (2,015) (2,015)
Repurchases of common stock (in Shares) (1,900)        
Net income (loss)   (8,380,060) (8,380,060)
Balance at Dec. 31, 2019 $ 6,879   (2,015) 21,281,382 (13,100,351) 8,185,895
Balance (in Shares) at Dec. 31, 2019 6,878,904 (1,900)        
Stock-based compensation expense   89,206 89,206
Repurchases of common stock   (7,240) (7,240)
Repurchases of common stock (in Shares) (6,600)        
Net income (loss)   (438,384) (438,384)
Balance at Mar. 31, 2020 $ 6,879   (9,255) 21,370,588 (13,538,735) 7,829,477
Balance (in Shares) at Mar. 31, 2020 6,878,904 (8,500)        
Balance at Dec. 31, 2019 $ 6,879   (2,015) 21,281,382 (13,100,351) 8,185,895
Balance (in Shares) at Dec. 31, 2019 6,878,904 (1,900)        
Issuance of common stock for consulting services $ 38   43,462 43,500
Issuance of common stock for consulting services (in Shares) 37,500        
Stock-based compensation expense   243,197 243,197
Repurchases of common stock   (8,844) (8,844)
Repurchases of common stock (in Shares) (8,050)        
Net income (loss)   1,371,262 1,371,262
Balance at Dec. 31, 2020 $ 6,917   (10,859) 21,568,041 (11,729,089) 9,835,010
Balance (in Shares) at Dec. 31, 2020 6,916,404 (9,950)        
Stock-based compensation expense   31,368 31,368
Net income (loss)   916,729 916,729
Balance at Mar. 31, 2021 $ 6,917   $ (10,859) $ 21,599,409 $ (10,812,360) $ 10,783,107
Balance (in Shares) at Mar. 31, 2021 6,916,404 (9,950)