Summary of Significant Accounting Policies - Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015
Class of Warrant or Right [Line Items]
Warrants Granted		7,192,313
Book Value		$ 17,946
Modification Warrants [Member]
Class of Warrant or Right [Line Items]
Grant Date	Apr. 13, 2009
Warrants Granted	1,939,639
Exercise Price	$ 1.11
Book Value	$ 4,829
Reimbursements Warrants [Member]
Class of Warrant or Right [Line Items]
Grant Date	Apr. 13, 2009
Warrants Granted	1,501,933
Exercise Price	$ 1.11
Book Value	$ 3,740
Credit Facility Warrants [Member]
Class of Warrant or Right [Line Items]
Grant Date	Aug. 17, 2009
Warrants Granted	1,650,806
Exercise Price	$ 1.16
Book Value	$ 4,127
Subordinated Note Warrants [Member]
Class of Warrant or Right [Line Items]
Grant Date	Aug. 17, 2009
Warrants Granted	2,099,935
Exercise Price	$ 1.16
Book Value	$ 5,250