CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - (UNAUDITED) - USD ($) $ in Thousands	Total	Common stock Par value	Additional paid-in capital	Retained earnings (accumulated deficit)	Accumulated other comprehensive income	Treasury stock
43921 at Dec. 31, 2018	$ 25,324	$ 0	$ 33,939	$ (2,782)	$ 4,337	$ (10,170)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	688			688
Payment of cash dividends	(303)			(303)
Charge related to stock-based compensation	107		107
Issuance of unrestricted shares	280		(141)			421
Repurchase of common stock	(9)					(9)
Foreign currency translations	(441)				(441)
44104 at Mar. 31, 2019	25,646	0	33,905	(2,397)	3,896	(9,758)
43921 at Dec. 31, 2018	25,324	0	33,939	(2,782)	4,337	(10,170)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,184
Foreign currency translations	(1,393)
44104 at Sep. 30, 2019	24,645	0	34,061	(2,499)	2,944	(9,861)
43921 at Mar. 31, 2019	25,646	0	33,905	(2,397)	3,896	(9,758)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,987			1,987
Payment of cash dividends	(300)			(300)
Charge related to stock-based compensation	160		160
Repurchase of common stock	(58)					(58)
Foreign currency translations	(189)				(189)
44104 at Jun. 30, 2019	27,245	0	34,026	(710)	3,707	(9,778)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Income Taxes Paid	1		39			38
Net income	(1,490)			(1,490)
Payment of cash dividends	(299)			(299)
Charge related to stock-based compensation	106		106
Issuance of unrestricted shares	0		(71)			71
Repurchase of common stock	(154)					(154)
Foreign currency translations	(763)				(763)
44104 at Sep. 30, 2019	24,645	0	34,061	(2,499)	2,944	(9,861)
43921 at Dec. 31, 2019	27,275	0	34,143	(690)	3,757	(9,935)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,787			2,787
Payment of cash dividends	(300)			(300)
Charge related to stock-based compensation	83		83
Issuance of unrestricted shares	210		(163)			373
Repurchase of common stock	(86)					(86)
Foreign currency translations	(1,634)				(1,634)
44104 at Mar. 31, 2020	28,335	0	34,063	1,797	2,123	(9,648)
43921 at Dec. 31, 2019	27,275	0	34,143	(690)	3,757	(9,935)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,534
Foreign currency translations	(407)
44104 at Sep. 30, 2020	26,244	0	33,765	3,908	3,350	(14,779)
43921 at Mar. 31, 2020	28,335	0	34,063	1,797	2,123	(9,648)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,130			1,130
Payment of cash dividends	(299)			(299)
Charge related to stock-based compensation	34		34
Repurchase of common stock	(5,109)					(5,109)
Foreign currency translations	548				548
44104 at Jun. 30, 2020	24,639	0	33,764	2,628	2,671	(14,424)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Income Taxes Paid	0		333			333
Net income	1,616			1,655
Payment of cash dividends	(336)			(336)
Charge related to stock-based compensation	1		1
Repurchase of common stock	(355)					(355)
Foreign currency translations	679				679
44104 at Sep. 30, 2020	$ 26,244	$ 0	$ 33,765	$ 3,908	$ 3,350	$ (14,779)