Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Total revenues	$ 304	$ 336	$ 301
Costs and expenses:
Cost of sales (exclusive of depreciation shown below)	334	357	555
General and administrative	13,709	10,084	13,464
Depreciation	270	254	254
Total costs and expenses	14,313	10,695	14,273
Operating loss	(14,009)	(10,359)	(13,972)
Interest expense, net	$ (10,070)	$ (8,518)	(7,644)
Loss on extinguishment of debt and debt refinancing			$ (1,055)
Other income, net	$ 70
Loss before income taxes	(24,009)	$ (18,877)	$ (22,671)
Income tax (benefit) expense	4	4	6
Net loss and comprehensive loss	$ (24,013)	$ (18,881)	$ (22,677)
Basic and diluted net loss per share (in dollars per share)	$ (1.35)	$ (1.15)	$ (1.46)
Weighted-average shares outstanding (in shares)	17,782	16,370	15,570