Share-based Compensation - Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Unvested, beginning balance (in shares) | shares	203,757
Vested (in shares) | shares	(78,974)
Unvested, ending balance (in shares) | shares	124,783
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested, weighted average grant date fair value at beginning of period (in dollars per share) | $ / shares	$ 4.96
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	5.12
Unvested, weighted average grant date fair value at end of period (in dollars per share) | $ / shares	$ 4.86