Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income	$ 6,818	$ 951	$ (2,933)	$ 4,843	$ 5,067	$ 3,497	$ 4,836	$ 13,407
Denominator:
Denominator for basic earnings per common share - weighted-average shares (in shares)	25,945,114			26,398,136			25,963,524	26,778,897
Effect of dilutive securities:
Employee stock awards (in shares)	509,145			85,837			321,805	131,675
Denominator for dilutive earnings per common share (in shares)	26,454,259			26,483,973			26,285,329	26,910,572
Basic earnings per common share (in usd per share)	$ 0.26			$ 0.18			$ 0.19	$ 0.50
Diluted earnings per common share (in usd per share)	$ 0.26			$ 0.18			$ 0.18	$ 0.50
Performance shares
Anti-dilutive securities excluded from the calculation of earnings per share:
Shares excluded from the calculation of diluted earnings per share (in shares)				0				0
Employee stock option
Anti-dilutive securities excluded from the calculation of earnings per share:
Shares excluded from the calculation of diluted earnings per share (in shares)	0			0			0	0
Restricted stock
Anti-dilutive securities excluded from the calculation of earnings per share:
Shares excluded from the calculation of diluted earnings per share (in shares)	967			0			58,070	0
Share-based Payment Arrangement [Member]
Anti-dilutive securities excluded from the calculation of earnings per share:
Shares excluded from the calculation of diluted earnings per share (in shares)				0				0