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Condensed Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) - USD ($)
Common Shares
Stock Amount
Additional Paid- in Capital
Accumulated Deficit
Total
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)      
Stock-based compensation expense     57,183   57,183
Repurchases of common stock   $ (1,604)     (1,604)
Repurchases of common stock (in Shares)   (1,450)      
Net income (loss)       531,541 531,541
Balance at Jun. 30, 2020 $ 6,879 $ (10,859) 21,427,771 (13,007,194) 8,416,597
Balance (in Shares) at Jun. 30, 2020 6,878,904 (9,950)      
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)      
Reversal of stock compensation expense of non-vested options, net     (192,342)   (192,342)
Net income (loss)       821,684 821,684
Balance at Jun. 30, 2021 $ 6,917 $ (10,859) $ 21,407,067 $ (9,990,676) $ 11,412,449
Balance (in Shares) at Jun. 30, 2021 6,916,404 (9,950)