Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid - In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
BALANCE at beginning of year at Dec. 31, 2020	$ 71,398	$ 18	$ 128,250	$ (56,888)	$ 18
Stock-based compensation expense	2,029	1	2,028	0	0
Issuance of shares for stock purchase plans and stock options	418	0	418	0	0
Cancellation of shares for payment of withholding tax	(782)	0	(782)	0	0
Repurchase of common stock	(3,193)	(1)	(3,192)	0	0
Dividends paid	(3,020)	0	(3,020)	0	0
Net (loss) income	(167)	0	0	(167)	0
Change in cumulative translation adjustment, net	(238)	0	0	0	(238)
BALANCE at end of year at Sep. 30, 2021	66,445	18	123,702	(57,055)	(220)
BALANCE at beginning of year at Jun. 30, 2021	69,023	19	126,791	(57,719)	(68)
Stock-based compensation expense	372	0	372	0	0
Issuance of shares for stock purchase plans and stock options		0	0	0	0
Cancellation of shares for payment of withholding tax	0	0	0	0	0
Repurchase of common stock	(2,460)	(1)	(2,459)	0	0
Dividends paid	(1,002)	0	(1,002)	0	0
Net (loss) income	664	0	0	664	0
Change in cumulative translation adjustment, net	(152)	0	0	0	(152)
BALANCE at end of year at Sep. 30, 2021	66,445	18	123,702	(57,055)	(220)
BALANCE at beginning of year at Dec. 31, 2021	66,921	18	123,998	(56,735)	(360)
Stock-based compensation expense	3,007	1	3,006	0	0
Issuance of shares for stock purchase plans and stock options	404	0	404	0	0
Cancellation of shares for payment of withholding tax	(396)	0	(396)	0	0
Dividends paid	(3,048)	0	(3,048)	0	0
Net (loss) income	819	0	0	819	0
Change in cumulative translation adjustment, net	(1,618)	0	0	0	(1,618)
BALANCE at end of year at Sep. 30, 2022	66,089	19	123,964	(55,916)	(1,978)
BALANCE at beginning of year at Jun. 30, 2022	64,683	19	123,844	(57,888)	(1,292)
Stock-based compensation expense	1,147	0	1,147	0	0
Issuance of shares for stock purchase plans and stock options	0	0	0	0	0
Cancellation of shares for payment of withholding tax	0	0	0	0	0
Dividends paid	(1,027)	0	(1,027)	0	0
Net (loss) income	1,972	0	0	1,972	0
Change in cumulative translation adjustment, net	(686)	0	0	0	(686)
BALANCE at end of year at Sep. 30, 2022	$ 66,089	$ 19	$ 123,964	$ (55,916)	$ (1,978)