Condensed Consolidated Statement of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2014-09	$ 334			$ 334
Beginning Balance (in shares) at Dec. 31, 2017		26,768,498
Beginning Balance at Dec. 31, 2017	(6,856)	$ 1,071	$ 177,397	(185,324)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(10,306)			(10,306)
Share-based compensation	95		95
Issuance of common stock in connection with the LPC Equity Line	(23)		(23)
Ending Balance (in shares) at Jun. 30, 2018		26,768,498
Ending Balance at Jun. 30, 2018	$ (16,756)	$ 1,071	$ 177,469	$ (195,296)