CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ (4,444)	$ 5,846
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	596	1,370
Bad debt expense	5
Bad debt (recovery)		(8)
Amortization of deferred financing costs	0	64
Amortization of debt discount, net of gain on extinguishment	104	0
Non-cash interest expense	0	213
Stock-based compensation	270	377
Gain on debt extinguishment	0	(9,045)
Impairment charges	3,150	1,712
Deferred tax benefit	0	(230)
Changes in operating assets and liabilities:
Accounts receivable	(171)	276
Prepaid expenses and other current assets	249	211
Accounts payable	23	126
Accrued expenses and other liabilities	(327)	246
Accrued sales taxes and regulatory fees	(64)	(85)
Net cash provided by (used in) operating activities	(609)	1,073
Cash flows from investing activities:
Purchases of property and equipment	(311)	(93)
Net cash used in investing activities	(311)	(93)
Cash flows from financing activities:
Principal payments under borrowing arrangements	(1,832)	(341)
Proceeds from new loan agreements, net of expenses of $170	0	2,030
Proceeds from Series C Preferred Stock issuance, net of expenses of $223	1,527	0
Payment of equity issuance costs	0	(45)
Purchase of treasury stock	(143)	(2,325)
Net cash used in financing activities	(448)	(681)
Increase (decrease) in cash and cash equivalents	(1,368)	299
Cash at beginning of period	3,946	1,140
Cash at end of period	2,578	1,439
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	318	777
Non-cash investing and financing activities:
Accrued preferred stock dividends	9	9
Retired debt and accrued interest obligations in exchange for treasury stock	$ 0	$ 2,191