Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2020	$ 25	$ 5,924	$ (9,773)	$ 57,310	$ (1,292)	$ 52,194
Balance (in shares) at Dec. 31, 2020	9,150,806
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	183	0	0	0	183
Issuance of restricted stock	$ 0	0	0	0	0	0
Issuance of restricted stock (in shares)	16,080
Repurchase of common stock	$ (1)	(1,674)	0	0	0	(1,675)
Repurchase of common stock (in shares)	(500,000)
Net income	$ 0	0	0	745	0	745
Foreign currency translation adjustments, net of tax	0	0	0	0	(33)	(33)
Balance at Mar. 31, 2021	$ 24	4,433	(9,773)	58,055	(1,325)	51,414
Balance (in shares) at Mar. 31, 2021	8,666,886
Balance at Dec. 31, 2021	$ 24	3,959	(9,773)	58,664	(1,373)	51,501
Balance (in shares) at Dec. 31, 2021	8,547,335
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	340	0	0	0	340
Issuance of restricted stock	$ 0	0	0	0	0	0
Issuance of restricted stock (in shares)	47,423
Net income	$ 0	0	0	645	0	645
Foreign currency translation adjustments, net of tax	0	0	0	0	65	65
Balance at Mar. 31, 2022	$ 24	$ 4,299	$ (9,773)	$ 59,309	$ (1,308)	$ 52,551
Balance (in shares) at Mar. 31, 2022	8,594,758