CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenue	$ 4,344	$ 6,160	$ 14,950	$ 19,851
Operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	2,609	3,723	9,187	11,376
Research and development	229	336	817	969
Sales and marketing	70	519	576	1,658
General and administrative	1,664	1,378	4,009	4,167
Impairment charges	605	4	630	138
Depreciation and amortization	455	537	1,509	1,652
Total operating expenses	5,632	6,497	16,728	19,960
Loss from operations	(1,288)	(337)	(1,778)	(109)
Interest and other expense, net	380	377	1,135	1,108
Loss before income taxes	(1,668)	(714)	(2,913)	(1,217)
Income tax expense	37	0	108	0
Net loss	(1,705)	(714)	(3,021)	(1,217)
Preferred stock dividends	3	5	9	15
Net loss attributable to common stockholders	$ (1,708)	$ (719)	$ (3,030)	$ (1,232)
Net loss attributable to common stockholders per share:
Basic and diluted net loss per share (in dollars per share)	$ (0.05)	$ (0.02)	$ (0.09)	$ (0.03)
Weighted-average number of shares of common stock:
Weighted average shares outstanding - basic and diluted (in shares)	35,492	35,393	35,480	35,441