Quarterly report pursuant to Section 13 or 15(d)

Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details)

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Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details) - USD ($)
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Product Information [Line Items]    
Net (loss) income $ (205,797) $ 2,314,287
Weighted average common shares outstanding - basic (in shares) 14,432,652 14,178,542
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Unvested restricted stock and stock options (in shares) 0 676,267
Weighted average common shares outstanding - diluted (in shares) 14,432,652 14,854,809
Basic earnings per share (in dollars per share) $ (0.01) $ 0.16
Diluted earnings per share (in dollars per share) $ (0.01) $ 0.16
Restricted stocks    
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Weighted average potentially dilutive securities (in shares) 7,447 1,698
Stock options    
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Weighted average potentially dilutive securities (in shares) 502,107 14,801