Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2019	$ 25	$ 5,037	$ (9,773)	$ 62,211	$ (1,081)	$ 56,419
Balance (in shares) at Dec. 31, 2019						9,022,187
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	0	228	0	0	0	$ 228
Issuance of restricted stock	$ 0	0	0	0	0	0
Issuance of restricted stock (in shares)	20,804
Net income (loss)	$ 0	0	0	(1,738)	0	(1,738)
Foreign currency translation adjustments, net of tax	0	0	0	0	(346)	(346)
Balance at Mar. 31, 2020	25	5,265	(9,773)	60,473	(1,427)	$ 54,563
Balance (in shares) at Mar. 31, 2020						9,042,991
Balance at Dec. 31, 2019	25	5,037	(9,773)	62,211	(1,081)	$ 56,419
Balance (in shares) at Dec. 31, 2019						9,022,187
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)						$ (3,513)
Foreign currency translation adjustments, net of tax						(216)
Balance at Jun. 30, 2020	25	5,448	(9,773)	58,698	(1,297)	$ 53,101
Balance (in shares) at Jun. 30, 2020						9,042,991
Balance at Mar. 31, 2020	25	5,265	(9,773)	60,473	(1,427)	$ 54,563
Balance (in shares) at Mar. 31, 2020						9,042,991
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	0	183	0	0	0	$ 183
Net income (loss)	0	0	0	(1,775)	0	(1,775)
Foreign currency translation adjustments, net of tax	0	0	0	0	130	130
Balance at Jun. 30, 2020	25	5,448	(9,773)	58,698	(1,297)	$ 53,101
Balance (in shares) at Jun. 30, 2020						9,042,991
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	(1,675)
Repurchase of common stock (in shares)	(500,000)
Net income (loss)	$ 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, 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]
Net income (loss)						$ 1,285
Foreign currency translation adjustments, net of tax						36
Balance at Jun. 30, 2021	24	4,622	(9,773)	58,595	(1,256)	$ 52,212
Balance (in shares) at Jun. 30, 2021						8,663,921
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	0	204	0	0	0	$ 204
Purchase of vested stock for employee payroll tax withholding	$ 0	(15)	0	0	0	(15)
Purchase of vested stock for employee payroll tax withholding (in shares)	(2,965)
Net income (loss)	$ 0	0	0	540	0	540
Foreign currency translation adjustments, net of tax	0	0	0	0	69	69
Balance at Jun. 30, 2021	$ 24	$ 4,622	$ (9,773)	$ 58,595	$ (1,256)	$ 52,212
Balance (in shares) at Jun. 30, 2021						8,663,921