Unaudited Condensed Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Condensed Consolidated Statements of Cash Flows [Abstract]
Proceeds from loan, net of debt issuance costs and debt discount	$ 2,343	$ 953