Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings	Total
Beginning balance, shares at Dec. 31, 2019	30,303,395
Beginning treasury stock, shares at Dec. 31, 2019		(711,231)
Beginning balance at Dec. 31, 2019	$ 303	$ (6,540)	$ (1,045)	$ 182,523	$ (37,220)	$ 138,021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				462		462
Issue restricted stock, shares	185,356
Issuance of restricted stock	$ 2			(2)
Forfeiture of restricted stock (in shares)	(3,351)
Cash flow hedge			(984)			(984)
Net income					2,723	2,723
Ending balance, shares at Mar. 31, 2020	30,485,400
Ending treasury stock, shares at Mar. 31, 2020		(711,231)
Ending balance at Mar. 31, 2020	$ 305	$ (6,540)	(2,029)	182,983	(34,497)	$ 140,222
Beginning balance, shares at Dec. 31, 2020	31,171,804					31,171,804
Beginning treasury stock, shares at Dec. 31, 2020		(711,231)				(711,231)
Beginning balance at Dec. 31, 2020	$ 312	$ (6,540)	(1,602)	184,324	(17,000)	$ 159,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				383		383
Exercise of stock options, shares	23,755
Exercise of stock options				86		86
Payments related to tax withholding for stock-based compensation, shares	(6,673)
Payments related to tax withholding for stock-based compensation				(36)		(36)
Cash flow hedge			230			230
Net income					928	$ 928
Ending balance, shares at Mar. 31, 2021	31,188,886					31,188,886
Ending treasury stock, shares at Mar. 31, 2021		(711,231)				(711,231)
Ending balance at Mar. 31, 2021	$ 312	$ (6,540)	$ (1,372)	$ 184,757	$ (16,072)	$ 161,085