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CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Preferred Stock [Member]
Series II, Class B
Preferred Stock [Member]
Series III, Class B
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total
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   (26,500) 26,500      
Stock Option Exercises     48,600     48,600
Dividends       (5,095,996)   (5,095,996)
Stock option compensation     1,345,916     1,345,916
Repurchase of Common Stock - at cost         $ (154,424) (154,424)
Net income (loss)       28,618,009   28,618,009
Balance at Jun. 30, 2021 156,200 80,245 60,706,417 13,853,792 (154,424) 74,642,230
Balance at Mar. 31, 2021 156,200 101,745 59,333,751 8,248,613   67,840,309
Increase (Decrease) in Stockholders' Equity            
Conversion of Preferred Stock into Common Stock   (21,500) 21,500      
Stock Option Exercises     5,250     5,250
Dividends       (5,056,946)   (5,056,946)
Stock option compensation     1,345,916     1,345,916
Repurchase of Common Stock - at cost         (154,424) (154,424)
Net income (loss)       10,662,125   10,662,125
Balance at Jun. 30, 2021 156,200 80,245 60,706,417 13,853,792 (154,424) 74,642,230
Balance at Dec. 31, 2021 156,200 76,245 63,024,888 41,182,429 (5,270,501) 99,169,261
Increase (Decrease) in Stockholders' Equity            
Stock Option Exercises     10,500     10,500
Dividends       (116,222)   (116,222)
Stock option compensation     2,276,736     2,276,736
Repurchase of Common Stock - at cost         (2,818,177) (2,818,177)
Net income (loss)       3,974,858   3,974,858
Balance at Jun. 30, 2022 156,200 76,245 65,312,124 45,041,065 (8,088,678) 102,496,956
Balance at Mar. 31, 2022 156,200 76,245 64,167,466 48,740,773 (7,818,225) 105,322,459
Increase (Decrease) in Stockholders' Equity            
Dividends       (58,111)   (58,111)
Stock option compensation     1,144,658     1,144,658
Repurchase of Common Stock - at cost         (270,453) (270,453)
Net income (loss)       (3,641,597)   (3,641,597)
Balance at Jun. 30, 2022 $ 156,200 $ 76,245 $ 65,312,124 $ 45,041,065 $ (8,088,678) $ 102,496,956