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Statements of Stockholders' Equity - USD ($)
Common Stock
Additional paid-in capital
Accumulated Deficit
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Total
Balance at Dec. 31, 2018 $ 566,265 $ 22,695,557 $ (1,342,698) $ (204,947) $ 30,157 $ 21,744,334
Balance, Shares at Dec. 31, 2018 5,662,645     93,683    
Net loss     (1,295,587)     (1,295,587)
Other comprehensive income (loss), net of taxes         (74,052) (74,052)
Public offering of common stock, net of $696,566 of offering costs $ 163,636 8,139,800 8,303,436
Public offering of common stock, net of $696,566 of offering costs, Shares 1,636,364          
Exercise of stock options (16,608)   $ 16,611   3
Exercise of stock options, Shares     (7,593)    
Stock-based compensation   313,144 313,144
Balance at Dec. 31, 2019 $ 729,901 31,131,893 (2,638,285) $ (188,336) (43,895) 28,991,278
Balance, Shares at Dec. 31, 2019 7,299,009     86,090    
Net loss (1,022,117)     (1,022,117)
Other comprehensive income (loss), net of taxes         43,895 43,895
Exercise of stock options   (12,935)   $ 12,944   9
Exercise of stock options, Shares       (5,917)    
Stock-based compensation 253,135 253,135
Balance at Dec. 31, 2020 $ 729,901 $ 31,372,093 $ (3,660,402) $ (175,392) $ 28,266,200
Balance, Shares at Dec. 31, 2020 7,299,009     80,173