Discontinued Operations (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2010	Sep. 30, 2012	Mar. 02, 2012	Dec. 31, 2011	Sep. 30, 2012 Maximum [Member]	Sep. 30, 2012 Escrow [Member]	Sep. 02, 2010 Escrow [Member]	Sep. 30, 2012 Escrow-Disbursed [Member]	Sep. 30, 2012 Escrow-Remaining [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase Price							$ 5,000,000
Maximum amount of indemnification liability		2,000,000			10,000,000
Resolution of indemnification claim amount						2,500,000		2,500,000	2,500,000
Restricted cash		2,500,000		5,000,000		2,500,000
Discontinued Operations (Textual) [Abstract]
Proceeds from sale of LC business	$ 96,000,000
Asset purchase agreement			18 months