Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Product Information [Line Items]    
Net income $ 2,314,287 $ 814,947
Weighted average common shares outstanding - basic (in shares) 14,178,542 13,890,673
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Unvested restricted stock and stock options (in shares) 676,267 592,911
Weighted average common shares outstanding - diluted (in shares) 14,854,809 14,483,584
Basic earnings per share (in dollars per share) $ 0.16 $ 0.06
Diluted earnings per share (in dollars per share) $ 0.16 $ 0.06
Unvested restricted stock    
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Weighted average potentially dilutive securities (in shares) 1,698 0
Stock options    
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Weighted average potentially dilutive securities (in shares) 14,801 101,692