CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Total
Beginning balance at Dec. 31, 2021	$ 139	$ 55,246	$ 15,566	$ (32,110)	$ 143	$ 38,984
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from restricted stock units	0
Share-based compensation expense		296
Relinquishment of stock awards to pay for withholding taxes		(119)
Net income (loss)			(4,348)			(4,348)
Foreign currency translation adjustment, net of tax					(42)	(42)
Ending balance at Mar. 31, 2022	139	55,423	11,218	(32,110)	101	$ 34,771
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						63
Relinquishment of stock awards to pay withholding taxes (in shares)						26
Beginning balance at Dec. 31, 2022	139	56,282	9,630	(32,110)	(79)	$ 33,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from restricted stock units	1
Share-based compensation expense		278
Relinquishment of stock awards to pay for withholding taxes		(86)
Net income (loss)			3,139			3,139
Foreign currency translation adjustment, net of tax					2	2
Ending balance at Mar. 31, 2023	$ 140	$ 56,474	$ 12,769	$ (32,110)	$ (77)	$ 37,196
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						54
Relinquishment of stock awards to pay withholding taxes (in shares)						12