CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from Operating Activities:
Net loss	$ (3,533)	$ (2,143)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,959	2,235
Bad debt expense	20	37
Amortization of deferred financing costs	72	87
Stock-based compensation	929	813
Stock-based expense	204	0
Impairment charges	675	138
Deferred tax provision	(79)	170
Increase (decrease) attributable to changes in assets and liabilities:
Accounts receivable	1,043	539
Prepaid expenses and other current assets	(425)	267
Other assets	1	15
Accounts payable	(310)	(835)
Accrued expenses	(327)	(83)
Accrued sales taxes and regulatory fees	(46)	(3)
Net cash provided by operating activities	183	1,237
Cash flows from Investing Activities:
Proceeds on sale of equipment	0	3
Purchases of property and equipment	(382)	(1,247)
Net cash used in investing activities	(382)	(1,244)
Cash flows from Financing Activities:
Principal payments for capital lease	0	(43)
Principal payments under borrowing arrangements	(400)	(613)
Advances on borrowing arrangements	0	613
Proceeds from issuance of common stock	0	18
Payment of equity issuance costs	(12)	(2)
Purchase of treasury stock	(13)	(140)
Net cash used in financing activities	(425)	(167)
Decrease in cash and cash equivalents	(624)	(174)
Cash at beginning of period	1,764	1,938
Cash at end of period	1,140	1,764
Supplement disclosures of cash flow information:
Cash paid during the period for interest	1,116	1,199
Non-cash investing and financing activities:
Preferred stock conversion	0	89
Recognition of prepaid equity issuance costs as additional paid-in capital	18	136
Accrued preferred stock dividends	$ 12	$ 18