Consolidated Statement of Changes in Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Common Class B [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balances at Dec. 31, 2010	$ 14	$ 4	$ (4,316)	$ 139,028	$ (80,560)	$ 54,170	$ 252	$ 54,422
Balances (in shares) at Dec. 31, 2010	1,315,447	355,607
Sale of common stock, net of expenses	32	0	0	33,245	0	33,277	0	33,277
Sale of common stock, net of expenses (in shares)	3,188,681	0
Sale of Class B stock, net of expenses	0	9	0	0	0	9	9,501	9,510
Sale of Class B stock, net of expenses (in shares)	0	918,463
Issuance of common stock in exchange for debt	3	0	0	11,598	0	11,601	0	11,601
Issuance of common stock in exchange for debt (in shares)	329,890	0
Stock-based compensation	0	0	0	1,493	0	1,493	0	1,493
Exchange of Class B shares to common	4	(4)	0	2,477	0	2,477	(2,477)	0
Exchange of Class B shares to common (in shares)	342,916	(342,916)
Issuance of restricted stock, (net of forfeitures)	0	0	0	0	0	0	0	0
Issuance of restricted stock, net of forfeitures (in shares)	93,914	0
Net loss	0	0	0	0	(8,717)	(8,717)	(1,644)	(10,361)
Balances at Dec. 31, 2011	53	9	(4,316)	187,841	(89,277)	94,310	5,632	99,942
Balances (in shares) at Dec. 31, 2011	5,270,848	931,154
Stock-based compensation	0	0	0	1,119	0	1,119	0	1,119
Exchange of Class B shares to common	1	(1)	0	273	0	273	(273)	0
Exchange of Class B shares to common (in shares)	135,675	(135,675)
Issuance of restricted stock, (net of forfeitures)	0	0	0	0	0	0	0	0
Issuance of restricted stock, net of forfeitures (in shares)	77,250	0
Net loss	0	0	0	0	(29,820)	(29,820)	(5,015)	(34,835)
Balances at Sep. 30, 2012	$ 54	$ 8	$ (4,316)	$ 189,233	$ (119,097)	$ 65,882	$ 344	$ 66,226
Balances (in shares) at Sep. 30, 2012	5,483,773	795,479