CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2015	$ (81,515)	$ 0	$ 8	$ (10,737)	$ 531,764	$ (602,550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net proceeds from public stock offering and private placements	83,267		4		83,263
Exercise of stock options, vesting of restricted stock and related tax withholdings	(33)			(33)
Surrender of stock - settlement				(255)	255
Shares issued in connection with the acquisition of Home Solutions, Inc.	9,937			11,025	(1,088)
Equity linked liabilities reclassified to equity upon approval of Charter Amendment	2,847				2,847
Accrued dividends on preferred stock	(9,084)				(9,084)
Stock-based compensation	3,725				3,725
Net loss	(42,765)					(42,765)
Ending Balance at Dec. 31, 2016	(33,621)	0	12	0	611,682	(645,315)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net proceeds from public stock offering and private placements	20,777		1		20,776
Exercise of stock options, vesting of restricted stock and related tax withholdings	5			(16)	21
Accrued dividends on preferred stock	(10,077)				(10,077)
Stock-based compensation	2,360				2,360
Net loss	(64,196)					(64,196)
Ending Balance at Dec. 31, 2017	(84,752)	0	13	(16)	624,762	(709,511)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options, vesting of restricted stock and related tax withholdings	(26)			(934)	908
Accrued dividends on preferred stock	(11,210)				(11,210)
Stock-based compensation	3,677				3,677
Net loss	(51,693)					(51,693)
Ending Balance at Dec. 31, 2018	$ (144,004)	$ 0	$ 13	$ (950)	$ 618,137	$ (761,204)