Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Treasury Stock	Other Comprehensive Income (Loss)	Additional Paid-In Capital	Retained Earnings	Total
Beginning balance, shares at Dec. 31, 2020	31,171,804
Beginning treasury stock, shares at Dec. 31, 2020		(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 (loss)					928	928
Ending balance, shares at Mar. 31, 2021	31,188,886
Ending treasury stock, shares at Mar. 31, 2021		(711,231)
Ending balance at Mar. 31, 2021	$ 312	$ (6,540)	$ (1,372)	184,757	(16,072)	$ 161,085
Beginning balance, shares at Dec. 31, 2021	31,712,457					31,712,457
Beginning treasury stock, shares at Dec. 31, 2021		(711,231)				(711,231)
Beginning balance at Dec. 31, 2021	$ 317	$ (6,540)		185,881	(31,560)	$ 148,098
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				370		370
Payments related to tax withholding for stock-based compensation, shares	(4,739)
Payments related to tax withholding for stock-based compensation				(15)		(15)
Issue restricted stock, shares	8,929
Forfeiture of restricted stock (in shares)	(39,922)
Net income (loss)					(4,856)	$ (4,856)
Ending balance, shares at Mar. 31, 2022	31,676,725					31,676,725
Ending treasury stock, shares at Mar. 31, 2022		(711,231)				(711,231)
Ending balance at Mar. 31, 2022	$ 317	$ (6,540)		$ 186,236	$ (36,416)	$ 143,597