CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (598)	$ (1,285)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	159	232
Bad recovery	(4)
Bad debt expense		5
Amortization of debt discount, net of gain on extinguishment	0	104
Stock-based compensation	29	50
Impairment charges	0	650
Changes in operating assets and liabilities:
Accounts receivable	(67)	(80)
Prepaid expenses and other current assets	(72)	19
Other assets	24	0
Accounts payable	(15)	(28)
Accrued expenses and other liabilities	136	(139)
Net cash used in operating activities	(408)	(472)
Cash flows from investing activities:
Purchases of property and equipment	(9)	(48)
Net cash used in investing activities	(9)	(48)
Cash flows from financing activities:
Principal payments under borrowing arrangements	0	(1,832)
Proceeds from Series C Preferred Stock issuance, net of expenses of $223	0	1,527
Purchase of treasury stock	(1)	(53)
Net cash used in financing activities	(1)	(358)
Decrease in cash and cash equivalents	(418)	(878)
Cash at beginning of period	2,007	3,946
Cash at end of period	1,589	3,068
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	0	316
Non-cash investing and financing activities:
Accrued preferred stock dividends	$ 15	$ 3