Consolidated Statements of Equity (USD $)	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2010	$ 6,000	$ 193,000	$ (1,000)	$ 13,549,000	$ (6,808,000)	$ (142,000)	$ 450,000	$ 7,247,000
Balance (in Shares) at Dec. 31, 2010	554,000	19,314,000
Preferred Stock and accrued dividends converted to common stock	(6,000)	6,000						6,000
Preferred Stock and accrued dividends converted to common stock (in Shares)	(554,000)	609,000
Exercise of warrants		1,000		63,000				64,000
Exercise of warrants (in Shares)		75,000
Issuance of stock options and restricted shares to employees & non- employees for services				420,000				420,000
Exercise of Options		1,000		36,000				37,000
Exercise of Options (in Shares)		105,000						(112,626)
Sale of non-controlling interest of subsidiary in India				(127,000)			217,000	90,000
Establishment of new subsidiaries with non-controlling interest							158,000	158,000
Distribution of subsidiary's equity					(32,000)		122,000	90,000
Reissued treasury stock			1,000	(1,000)
Other comprehensive loss						(30,000)		(30,000)
Net Income					2,214,000		123,000	2,337,000
Balance at Dec. 31, 2011		201,000		13,940,000	(4,626,000)	(172,000)	1,070,000	10,413,000
Balance (in Shares) at Dec. 31, 2011		20,103,000
Issuance of stock options and restricted shares to employees & non- employees for services				517,000				517,000
Issuance of stock options and restricted shares to employees & non- employees for services (in Shares)		20,000
Issuance of shares for purchase of joint venture		1,000		164,000				165,000
Issuance of shares for purchase of joint venture (in Shares)		100,000
Exercise of Options		3,000		134,000				137,000
Exercise of Options (in Shares)		247,000						(240,639)
Purchase of non-controlling interest in joint ventures							368,000	368,000
Other changes to non-controlling interest							(63,000)	(63,000)
Other changes to paid-in capital				(17,000)				(17,000)
Purchase of treasury shares			(35,000)					(35,000)
Purchase of treasury shares (in Shares)		(18,000)						17,689
Reissued treasury stock			9,000					9,000
Reissued treasury stock (in Shares)		4,000
Other comprehensive loss						(210,000)		(210,000)
Net Income					2,930,000		521,000	3,451,000
Balance at Dec. 31, 2012		$ 205,000	$ (26,000)	$ 14,738,000	$ (1,696,000)	$ (382,000)	$ 1,896,000	$ 14,735,000
Balance (in Shares) at Dec. 31, 2012		20,456,000