CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 3,856	$ 5,088	$ 7,936	$ 10,606
Operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	2,261	3,120	4,709	6,579
Research and development	292	302	579	589
Sales and marketing	160	225	300	505
General and administrative	857	1,104	1,873	2,344
Impairment charges	5	25	5	25
Depreciation and amortization	460	508	919	1,054
Total operating expenses	4,035	5,284	8,385	11,096
Loss from operations	(179)	(196)	(449)	(490)
Interest and other expense, net	384	375	755	755
Loss before income taxes	(563)	(571)	(1,204)	(1,245)
Income tax expense	27	34	54	71
Net loss	(590)	(605)	(1,258)	(1,316)
Preferred stock dividends	3	3	6	6
Net loss attributable to common stockholders	$ (593)	$ (608)	$ (1,264)	$ (1,322)
Net loss attributable to common stockholders per share:
Basic and diluted net loss per share (in dollars per share)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.04)
Weighted-average number of shares of common stock:
Basic and diluted (in shares)	37,168	35,879	37,168	35,861