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		868
Relinquishment of stock awards to pay for withholding taxes		(119)
Net income (loss)			(6,196)			(6,196)
Foreign currency translation adjustment, net of tax					(255)	(255)
Ending balance at Sep. 30, 2022	139	55,995	9,370	(32,110)	(112)	$ 33,282
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						65
Relinquishment of stock awards to pay withholding taxes (in shares)						26
Beginning balance at Jun. 30, 2022	139	55,708	8,842	(32,110)	93	$ 32,672
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from restricted stock units	0
Share-based compensation expense		287
Relinquishment of stock awards to pay for withholding taxes		0
Net income (loss)			528			528
Foreign currency translation adjustment, net of tax					(205)	(205)
Ending balance at Sep. 30, 2022	139	55,995	9,370	(32,110)	(112)	$ 33,282
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						2
Relinquishment of stock awards to pay withholding taxes (in shares)						0
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		611
Relinquishment of stock awards to pay for withholding taxes		(86)
Net income (loss)			4,810			4,810
Foreign currency translation adjustment, net of tax					(24)	(24)
Ending balance at Sep. 30, 2023	140	56,807	14,440	(32,110)	(103)	$ 39,174
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						58
Relinquishment of stock awards to pay withholding taxes (in shares)						12
Beginning balance at Jun. 30, 2023	140	56,594	13,534	(32,110)	(68)	$ 38,090
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from restricted stock units	0
Share-based compensation expense		213
Relinquishment of stock awards to pay for withholding taxes		0
Net income (loss)			906			906
Foreign currency translation adjustment, net of tax					(35)	(35)
Ending balance at Sep. 30, 2023	$ 140	$ 56,807	$ 14,440	$ (32,110)	$ (103)	$ 39,174
Supplemental Share Information:
Issuance of shares from stock awards (in shares)						1
Relinquishment of stock awards to pay withholding taxes (in shares)						0