Consolidated Statements of Stockholders' Deficit (Unaudited) - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance as of December 31, 2014 (in shares) at Dec. 31, 2014	17,681,274
Balance as of December 31, 2014 at Dec. 31, 2014	$ 177	$ 319,604	$ (359,519)	$ (39,738)
Stock-based compensation expense (in shares)	44,933
Stock-based compensation expense		707		707
Issuance of shares pursuant to bond conversion (in shares)	14,600
Issuance of shares pursuant to bond conversion		$ 116		116
Net loss and comprehensive loss			$ (10,832)	(10,832)
Balance as of June 30, 2015 (in shares) at Jun. 30, 2015	17,740,807
Balance as of June 30, 2015 at Jun. 30, 2015	$ 177	$ 320,427	$ (370,351)	$ (49,747)