Consolidated Statements of Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2011	$ 201		$ 13,940	$ (172)	$ (4,626)	$ 1,070	$ 10,413
Balance (in Shares) at Dec. 31, 2011	20,103,000
Share-based compensation			517				517
Share-based compensation (in Shares)	20,000
Issuance of shares for purchase of joint venture	1		164				165
Issuance of shares for purchase of joint venture (in Shares)	100,000
Exercise of stock options	3		134				137
Exercise of stock options (in Shares)	247,000						287,839
Sale of non-controlling interest in subsidiaries						368	368
Other changes to non-controlling interest						(63)	(63)
Other changes to paid-in capital			(17)				(17)
Purchase of treasury shares		(35)					(35)
Purchase of treasury shares (in Shares)		18,000
Reissued treasury shares		9					9
Reissued treasury shares (in Shares)		(4,000)
Other comprehensive loss				(210)			(210)
Net Income					2,930	521	3,451
Balance at Dec. 31, 2012	205	(26)	14,738	(382)	(1,696)	1,896	14,735
Balance (in Shares) at Dec. 31, 2012	20,470,000	14,000
Share-based compensation			538				538
Share-based compensation (in Shares)	25,000
Exercise of stock options	2		122				124
Exercise of stock options (in Shares)	186,000						202,233
Sale of non-controlling interest in subsidiaries						20	20
Purchase of non-controlling interest in joint venture			3			(123)	(120)
Other changes to non-controlling interest						52	52
Purchase of treasury shares		(392)					(392)
Purchase of treasury shares (in Shares)		200,000					217,689
Reissued treasury shares		62	(62)
Reissued treasury shares (in Shares)		(32,000)
Other comprehensive loss				(649)			(649)
Net Income					3,350	898	4,248
Balance at Dec. 31, 2013	$ 207	$ (356)	$ 15,339	$ (1,031)	$ 1,654	$ 2,743	$ 18,556
Balance (in Shares) at Dec. 31, 2013	20,681,000	182,000