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Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Total
Common Stock
Treasury Stock
Additional Paid-In Capital
Retained Earnings (Accumulated Deficit)
Balance, shares at Dec. 31, 2019   13,518,036      
Balance, amount at Dec. 31, 2019 $ 31,282,082 $ 13,518 $ 0 $ 27,584,610 $ 3,683,954
Stock-based compensation 565,057 $ 0 0 565,057 0
Restricted stock granted for services, shares   57,087      
Restricted stock granted for services, amount 57 $ 57 0 0 0
Net income 2,032,180 $ 0 0 0 2,032,180
Balance, shares at Jun. 30, 2020   13,575,123      
Balance, amount at Jun. 30, 2020 33,879,376 $ 13,575 0 28,149,667 5,716,134
Balance, shares at Dec. 31, 2019   13,518,036      
Balance, amount at Dec. 31, 2019 31,282,082 $ 13,518 0 27,584,610 3,683,954
Restricted stock granted for services, amount 179,000        
Balance, shares at Dec. 31, 2020   13,628,675      
Balance, amount at Dec. 31, 2020 36,364,273 $ 13,629 (146,465) 28,811,389 7,685,720
Balance, shares at Mar. 31, 2020   13,536,742      
Balance, amount at Mar. 31, 2020 32,480,013 $ 13,537 0 27,907,344 4,559,132
Stock-based compensation 242,323 $ 0 0 242,323 0
Restricted stock granted for services, shares   38,381      
Restricted stock granted for services, amount 38 $ 38 0 0 0
Net income 1,157,002 $ 0 0 0 1,157,002
Balance, shares at Jun. 30, 2020   13,575,123      
Balance, amount at Jun. 30, 2020 33,879,376 $ 13,575 0 28,149,667 5,716,134
Balance, shares at Dec. 31, 2020   13,628,675      
Balance, amount at Dec. 31, 2020 36,364,273 $ 13,629 (146,465) 28,811,389 7,685,720
Stock-based compensation 568,817 0 0 568,817 0
Net income 6,461,855 0 0 0 6,461,855
Common stock dividends (1,496,852) $ 0 0 0 (1,496,852)
Restricted common stock granted for services, shares   44,491      
Restricted common stock granted for services, amount 44 $ 44 0 0 0
Balance, shares at Jun. 30, 2021   13,673,166      
Balance, amount at Jun. 30, 2021 41,898,137 $ 13,673 (146,465) 29,380,206 12,650,723
Balance, shares at Mar. 31, 2021   13,638,041      
Balance, amount at Mar. 31, 2021 39,694,150 $ 13,638 (146,465) 29,079,460 10,747,517
Stock-based compensation 300,746 0   300,746 0
Net income 2,719,811 0 0 0 2,719,811
Common stock dividends (816,605) $ 0 0 0 (816,605)
Restricted common stock granted for services, shares   35,125      
Restricted common stock granted for services, amount 35 $ 35 0 0 0
Balance, shares at Jun. 30, 2021   13,673,166      
Balance, amount at Jun. 30, 2021 $ 41,898,137 $ 13,673 $ (146,465) $ 29,380,206 $ 12,650,723