CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2008	$ 6	$ 227	$ 274,761	$ (270,023)	$ 0	$ 4,971
Balance (in shares) at Dec. 31, 2008	594	22,745,536
Capital contribution	0	0	0	0	237	237
Purchase and cancellation of preferred and common stock	0	0	(126)	0	0	(126)
Purchase and cancellation of preferred and common stock (in shares)	(2)	(27,456)
Compensation cost related to stock options	0	0	71	0	0	71
Net income (loss)	0	0	0	(1,264)	65	(1,199)
Balance at Dec. 31, 2009	6	227	274,706	(271,287)	302	3,954
Balance (in shares) at Dec. 31, 2009	592	22,718,080
Issuance of common stock	0	32	0	0	(32)	0
Issuance of common stock (in shares)	0	3,242,000
Distribution to non-controlling interest	0	0	0	0	(766)	(766)
Transfer from non-controlling interest to controlling interest	0	0	889	0	(889)	0
Compensation cost related to stock options	0	0	46	0	0	46
Net income (loss)	0	0	0	4,829	1,385	6,214
Balance at Dec. 31, 2010	6	259	275,641	(266,458)	0	9,448
Balance (in shares) at Dec. 31, 2010	592	25,960,080
Issuance of common stock	0	12	1,995	0	0	2,007
Issuance of common stock (in shares)	0	1,122,950
Issuance of options	0	0	460	0	0	460
Exercise of options	0	0	16	0	0	16
Exercise of options (in shares)	0	26,275
Compensation cost related to stock options	0	0	176	0	0	176
Net income (loss)	0	0	0	4,589	0	4,589
Balance at Sep. 30, 2011	$ 6	$ 271	$ 278,288	$ (261,869)	$ 0	$ 16,696
Balance (in shares) at Sep. 30, 2011	592	27,109,305