Consolidated Statements of Changes in Stockholders' Equity and Comprehensive Income (Loss) (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]
Balance at Dec. 31, 2012	$ 44,700	$ 166	$ 288,671	$ (43)	$ (244,094)
Balance, Common Stock Shares (shares) at Dec. 31, 2012		166,490,190
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued for settlement of accounts payable, Common Stock Shares (shares)		739,713
Stock issued for settlement of accounts payable	164	1	163
Equity-based compensation, Common Stock Shares (shares)
Equity-based compensation	219		219
Net comprehensive loss	(8,939)			(1,045)	(7,894)
Balance at Jun. 30, 2013	$ 36,144	$ 167	$ 289,053	$ (1,088)	$ (251,988)
Balance, Common Stock Shares (shares) at Jun. 30, 2013		167,229,903