Annual report pursuant to Section 13 and 15(d)

Share-based Compensation - Summary of Restricted Share Activity, Excluding Company's Employee Stock Purchase Plan (Details)

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Share-based Compensation - Summary of Restricted Share Activity, Excluding Company's Employee Stock Purchase Plan (Details) - Restricted Stock - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of shares      
Unvested, number of shares (in shares) 145,000    
Share-based compensation arrangement, equity instruments other than options, grants in period (in shares) 213,027    
Vested, number of shares (in shares) (54,184)    
Vested shares forgone to satisfy minimum statutory withholding, number of shares (in shares) (1,901)    
Forfeitures, number of shares (in shares) (11,000)    
Unvested, number of shares (in shares) 290,942 145,000  
Weighted average grant date fair value      
Unvested, weighted average grant date fair value (in dollars per share) $ 9.78    
Granted, weighted average grant date fair value (in dollars per share) 18.85 $ 10.12 $ 7.04
Vested, weighted average grant date fair value (in dollars per share) 12.29    
Vested shares forgone to satisfy minimum statutory withholding, weighted average grant date fair value (in dollars per share) 12.29    
Forfeitures, weighted average grant date fair value (in dollars per share) 17.97    
Unvested, weighted average grant date fair value (in dollars per share) $ 15.61 $ 9.78  
Vested, aggregate fair value $ 920,125 $ 367,273 $ 712,969
Vested shares forgone to satisfy minimum statutory withholding, aggregate fair value $ 32,282 $ 62,479 $ 422,779