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		Cumulative Effect, Period of Adoption, Adjustment [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Dec. 31, 2018		$ 25	$ 4,267	$ (9,038)	$ 64,476	$ (1,444)	$ 58,286
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018									$ 0	$ (362)	$ 0	$ (362)
Balance (in shares) at Dec. 31, 2018							9,060,561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		0	186	0	0	0	$ 186
Issuance of restricted stock		$ 0	0	0	0	0	0
Issuance of restricted stock (in shares)		1,408
Purchase of treasury stock		$ 0	0	$ (715)	0	0	(715)
Purchase of treasury stock (in shares)				(127,945)
Net income (loss)		0	0	$ 0	1,520	0	1,520
Foreign currency translation adjustments, net of tax		0	0	0	0	314	314
Balance at Mar. 31, 2019		25	4,453	(9,753)	65,634	(1,130)	$ 59,229
Balance (in shares) at Mar. 31, 2019							8,934,024
Balance at Dec. 31, 2018		25	4,267	(9,038)	64,476	(1,444)	$ 58,286
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018									$ 0	$ (362)	$ 0	$ (362)
Balance (in shares) at Dec. 31, 2018							9,060,561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	[1]						$ (1,074)
Foreign currency translation adjustments, net of tax							205
Balance at Sep. 30, 2019		25	4,837	(9,773)	63,040	(1,239)	$ 56,890
Balance (in shares) at Sep. 30, 2019							8,930,187
Balance at Mar. 31, 2019		25	4,453	(9,753)	65,634	(1,130)	$ 59,229
Balance (in shares) at Mar. 31, 2019							8,934,024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		0	192	0	0	0	$ 192
Purchase of treasury stock		0	0	$ (9)	0	0	(9)
Purchase of treasury stock (in shares)				(1,800)
Net income (loss)		0	0	$ 0	(875)	0	(875)
Foreign currency translation adjustments, net of tax		0	0	0	0	87	87
Balance at Jun. 30, 2019		25	4,645	(9,762)	64,759	(1,043)	$ 58,624
Balance (in shares) at Jun. 30, 2019							8,932,224
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		0	192	0	0	0	$ 192
Purchase of treasury stock		0	0	$ (11)	0	0	(11)
Purchase of treasury stock (in shares)				(2,037)
Net income (loss)		0	0	$ 0	(1,719)	0	(1,719)	[1]
Foreign currency translation adjustments, net of tax		0	0	0	0	(196)	(196)
Balance at Sep. 30, 2019		25	4,837	(9,773)	63,040	(1,239)	$ 56,890
Balance (in shares) at Sep. 30, 2019							8,930,187
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)	[1]						$ (4,495)
Foreign currency translation adjustments, net of tax							(83)
Balance at Sep. 30, 2020		25	5,666	(9,773)	57,716	(1,164)	$ 52,470
Balance (in shares) at Sep. 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		0	218	0	0	0	$ 218
Net income (loss)		0	0	0	(982)	0	(982)	[1]
Foreign currency translation adjustments, net of tax		0	0	0	0	133	133
Balance at Sep. 30, 2020		$ 25	$ 5,666	$ (9,773)	$ 57,716	$ (1,164)	$ 52,470
Balance (in shares) at Sep. 30, 2020							9,042,991

[1] For the three and nine months ended September 30, 2020, there were 1,875 and 7,422 shares, respectively, excluded from the diluted EPS calculation and for the three and nine months ended September 30, 2019, there were 2,704 and 5,200 shares, respectively excluded from the diluted EPS calculation because the impact of their assumed vesting would be anti-dilutive due to a net loss in those respective periods.