Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2018	19,125
Balance at Dec. 31, 2018	$ 79,411	$ 9,246	$ (35,934)	$ (21,804)	$ 30,919
Share-based compensation (in shares)	52
Share-based compensation	$ 889	208			1,097
Vested restricted stock issued (in shares)	16
Vested restricted stock issued	$ 208	(208)
Shares cancelled to pay tax liability (in shares)	(38)
Shares cancelled to pay tax liability	$ (400)				(400)
Other comprehensive income - pension				211	211
Net loss			(1,095)		(1,095)
Stock option exercised (in shares)	25
Stock option exercised	$ 62	68			130
Pension, net				211	211
Balance (in shares) at Mar. 31, 2019	19,180
Balance at Mar. 31, 2019	$ 80,170	9,314	(37,029)	(21,593)	30,862
Balance (in shares) at Dec. 31, 2019	19,238
Balance at Dec. 31, 2019	$ 80,606	9,184	(46,300)	(20,798)	22,692
Share-based compensation (in shares)	68
Share-based compensation	$ 865	186			1,051
Vested restricted stock issued (in shares)	17
Vested restricted stock issued	$ 186	(186)
Shares cancelled to pay tax liability (in shares)	(42)
Shares cancelled to pay tax liability	$ (522)				(522)
Other comprehensive income - pension				206	206
Net loss			(1,074)		(1,074)
Pension, net				206	206
Balance (in shares) at Mar. 31, 2020	19,281
Balance at Mar. 31, 2020	$ 81,135	$ 9,184	$ (47,374)	$ (20,592)	$ 22,353