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CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Preferred Stock
Series I, Class B
Preferred Stock
Series II, Class B
Preferred Stock
Series III Preferred Stock
Preferred Stock
Series IV Preferred Stock
Preferred Stock
Series V Preferred Stock
Additional Paid-in Capital
Retained Earnings/Accumulated Deficit
Total
Balance at Dec. 31, 2019 $ 96,000 $ 171,200 $ 129,245 $ 342,500 $ 34,000 $ 61,660,744 $ (33,891,234) $ 28,542,455
Increase (Decrease) in Stockholders' Equity                
Exchange of Preferred Stock for Common Stock     (2,500) (5,000)   (67,500)   (75,000)
Dividends           (54,800)   (54,800)
Net income             322,773 322,773
Balance at Mar. 31, 2020 $ 96,000 171,200 126,745 $ 337,500 $ 34,000 61,538,444 (33,568,461) 28,735,428
Balance at Dec. 31, 2020   156,200 106,745     59,285,401 (9,668,221) 49,880,125
Increase (Decrease) in Stockholders' Equity                
Conversion of Preferred Stock into Common Stock     (5,000)     5,000    
Stock Option Exercises           43,350   43,350
Dividends           (39,050)   (39,050)
Net income             17,955,884 17,955,884
Balance at Mar. 31, 2021   $ 156,200 $ 101,745     $ 59,294,701 $ 8,287,663 $ 67,840,309