Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator
Net income (loss)	$ 18,430	$ 14,246	$ 20,468
Less: Net income attributable to participating securities	(409)	(429)	(764)
Net income attributable to common stockholders	$ 18,021	$ 13,817	$ 19,704
Denominator
Weighted average shares outstanding used in basic per common share computations (in shares)	14,290	14,038	13,778
Basic EPS (in dollars per share)	$ 1.26	$ 0.98	$ 1.43
Numerator
Net income attributable to common stockholders for diluted EPS	$ 18,021	$ 13,817	$ 19,704
Denominator
Weighted average shares outstanding used in basic per common share computations (in shares)	14,290	14,038	13,778
Weighted average effect of dilutive securities:
Performance share awards (in shares)	28	0	0
Weighted average shares outstanding used in diluted per common share computations (in shares)	14,318	14,038	13,778
Diluted EPS (in dollars per share)	$ 1.26	$ 0.98	$ 1.43