Earnings (Loss) Per Share - Calculation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
BASIC
Net income (loss)	$ 5,846	$ (1,005)
Weighted-average common shares outstanding (in shares)	13,960	13,827
Basic earnings (loss) per share (in dollars per share)	$ 0.42	$ (0.07)
DILUTED
Net income (loss)	$ 5,846	$ (1,005)
Weighted-average common shares outstanding (in shares)	13,960	13,827
Dilutive effect of stock options, restricted stock and common stock warrants (in shares)	251	0
Weighted-average common shares outstanding on a diluted basis (in shares)	14,211	13,827
Diluted earnings (loss) per share (in dollars per share)	$ 0.41	$ (0.07)