Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Shares (in shares) at Dec. 31, 2013	20,681,000	182,000
Balance at Dec. 31, 2013	$ 207	$ (356)	$ 15,339	$ (1,031)	$ 1,654	$ 2,743	$ 18,556
Share-based compensation			655				$ 655
Exercise of stock options (in shares)		(95,000)					453,522
Exercise of stock options		$ 187	(133)				$ 54
Change in non-controlling interest related to business acquisition						720	720
Distributions to non-controlling investors						(112)	(112)
Net cash settlement of stock options			(187)		(152)		(339)
Treasury Stock, Shares, Acquired		115,000
Purchase of treasury shares		$ (169)					(169)
Reissued treasury shares – RSUs (in shares)		(80,000)
Reissued treasury shares – RSUs		$ 155	(155)
Other comprehensive loss				(525)			(525)
Net income					3,268	1,103	4,371
Shares (in shares) at Dec. 31, 2014	20,681,000	122,000
Balance at Dec. 31, 2014	$ 207	$ (183)	15,519	(1,556)	4,770	4,454	23,211
Share-based compensation			655				$ 655
Exercise of stock options (in shares)		(95,000)					453,522
Exercise of stock options		$ 187	(133)				$ 54
Purchase of treasury shares (in shares)		115,000
Purchase of treasury shares		$ (169)					(169)
Other comprehensive loss				(525)			(525)
Net income					3,268	1,103	4,371
Share-based compensation			434				$ 434
Exercise of stock options (in shares)		(61,000)					61,124
Exercise of stock options		$ 95	(54)				$ 41
Distributions to non-controlling investors						(341)	$ (341)
Treasury Stock, Shares, Acquired		78,000					410,591
Purchase of treasury shares		$ (109)					$ (109)
Reissued treasury shares – RSUs (in shares)		(19,000)
Reissued treasury shares – RSUs		$ 28	(28)
Other comprehensive loss				(1,313)			(1,313)
Net income					892	1,583	2,475
Shares (in shares) at Dec. 31, 2015	20,681,000	120,000
Balance at Dec. 31, 2015	$ 207	$ (169)	15,871	(2,869)	5,662	5,696	24,398
Share-based compensation			434				$ 434
Exercise of stock options (in shares)		(61,000)					61,124
Exercise of stock options		$ 95	$ (54)				$ 41
Purchase of treasury shares (in shares)		78,000					410,591
Purchase of treasury shares		$ (109)					$ (109)
Other comprehensive loss				$ (1,313)			(1,313)
Net income					$ 892	$ 1,583	$ 2,475