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Share-Based Compensation - Restricted Common Stock Awards (Details) - Restricted Common Stock
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Shares  
Nonvested outstanding shares beginning balance (in shares) | shares 24,177
Granted (in shares) | shares 17,847
Vested (in shares) | shares (13,355)
Forfeited (in shares) | shares (83)
Nonvested outstanding shares ending balance (in shares) | shares 28,586
Weighted Average Grant-Date Fair Value  
Nonvested outstanding shares beginning balance (in dollars per share) | $ / shares $ 20.50
Granted (in dollars per share) | $ / shares 21.25
Vested (in dollars per share) | $ / shares 20.75
Forfeited (in dollars per share) | $ / shares 19.99
Nonvested outstanding shares ending balance (in dollars per share) | $ / shares $ 20.86