CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net loss	$ (1,258)	$ (1,316)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	919	1,054
Bad debt recovery	(14)	(9)
Amortization of deferred financing costs	36	36
Stock-based compensation expense	280	528
Impairment charges	5	25
Deferred tax provision	54	74
Increase (decrease) attributable to changes in assets and liabilities:
Accounts receivable	(47)	554
Prepaid expenses and other current assets	42	(302)
Accounts payable	36	(280)
Accrued expenses and other liabilities	18	(52)
Accrued sales taxes and regulatory fees	(42)	0
Net cash provided by operating activities	29	312
Cash flows from investing activities:
Purchases of property and equipment	(60)	(183)
Net cash used in investing activities	(60)	(183)
Cash flows from financing activities:
Principal payments under borrowing arrangements	0	(400)
Purchase of treasury stock	(12)	(13)
Net cash used in financing activities	(12)	(413)
Decrease in cash and cash equivalents	(43)	(284)
Cash at beginning of period	1,140	1,764
Cash at end of period	1,097	1,480
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	542	563
Non-cash investing and financing activities:
Accrued preferred stock dividends	6	6
Accrued preferred stock dividends	$ 6	$ 6