CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]
Balances at Dec. 31, 2010	$ 23,044,000	$ 8,606,000	$ 4,703,000	$ 0	$ 6,262,000	$ 19,571,000	$ 3,473,000
Balances (in shares) at Dec. 31, 2010		4,597,000
Stock based compensation expense	125,000	0	125,000	0	0	125,000	0
Stock based compensation expense (in shares)		14,000
Investment in subsidiaries by non-controlling interests	1,509,000	0	0	0	0	0	1,509,000
Cash distributions to non-controlling interests	(996,000)	0	0	0	0	0	(996,000)
Net income (loss)	1,489,000	0	0	0	506,000	506,000	983,000
Balances at Dec. 31, 2011	25,171,000	8,606,000	4,828,000	0	6,768,000	20,202,000	4,969,000
Balances (in shares) at Dec. 31, 2011		4,611,000
Repurchase of common stock	(28,000)	(28,000)	0	0	0	(28,000)	0
Repurchase of common stock (in shares)		(9,000)
Stock based compensation expense	74,000	0	74,000	0	0	74,000	0
Stock based compensation expense (in shares)		4,000
Investment in subsidiaries by non-controlling interests	217,000	0	0	0	0	0	217,000
Cumulative translation adjustment	(637,000)	0	0	(357,000)	0	(357,000)	(280,000)
Cash distributions to non-controlling interests	(780,000)	0	0	0	0	0	(780,000)
Net income (loss)	813,000	0	0	0	38,000	38,000	775,000
Balances at Dec. 31, 2012	24,830,000	8,578,000	4,902,000	(357,000)	6,806,000	19,929,000	4,901,000
Balances (in shares) at Dec. 31, 2012		4,606,000
Stock based compensation expense	69,000	0	69,000		0	69,000	0
Stock based compensation expense (in shares)		3,000
Investment in subsidiaries by non-controlling interests	139,000	0	0	0	(68,000)	(68,000)	207,000
Cumulative translation adjustment	(111,000)	0	0	(67,000)	0	(67,000)	(44,000)
Cash distributions to non-controlling interests	(480,000)	0	0	0	0	0	(480,000)
Net income (loss)	(3,000)	0	0	0	(230,000)	(230,000)	227,000
Balances at Sep. 30, 2013	$ 24,444,000	$ 8,578,000	$ 4,971,000	$ (424,000)	$ 6,508,000	$ 19,633,000	$ 4,811,000
Balances (in shares) at Sep. 30, 2013		4,609,000