Consolidated Statements of Operations (Parenthetical) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statements of Operations [Abstract]
Interest expense, related parties	$ 156	$ 127	$ 476	$ 371
Amortization of debt discount	$ 49	$ 176	$ 319	$ 586