Condensed Consolidated Statement of Stockholders' Deficit (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2017	22,987,434
Balance at Dec. 31, 2017	$ 230	$ 364,806	$ (443,735)	$ (78,699)
Issuance of shares pursuant to bond conversion (in shares)	215,852			215,852
Issuance of shares pursuant to bond conversion	$ 2	1,669		$ 1,671
Stock-based compensation expense (in shares)
Stock-based compensation expense		105		105
Issuance of shares pursuant to stock awards (in shares)	13,249
Issuance of shares pursuant to stock awards
Net loss and comprehensive loss			(5,971)	(5,971)
Balance (in shares) at Mar. 31, 2018	23,216,535
Balance at Mar. 31, 2018	$ 232	$ 366,580	$ (449,706)	$ (82,894)