Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net loss	$ (3,129)	$ (3,428)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	623	701
Other debt related costs included in interest expense	548	518
Provision for (recovery of) bad debt expense	13	(11)
Share-based compensation expense	38	80
Issuance of common stock in connection with First Amendment to Credit Agreement	0	150
Change in assets and liabilities:
Accounts receivable	(1,553)	(124)
Inventories	(28)	(116)
Other assets	(27)	(17)
Accounts payable, accrued expenses and other liabilities	276	(1,143)
Net cash used in operating activities	(3,239)	(3,390)
Cash flows from investing activities:
Capital expenditures	(89)	(166)
Net cash used in investing activities	(89)	(166)
Cash flows from financing activities:
Borrowings under credit facility	7,077	8,573
Payments under credit facility	(6,689)	(9,207)
Principal payments on Term Loan	0	(526)
Issuance of common stock and warrants, net of issuance costs	1,300	4,712
Net cash provided by financing activities	1,688	3,552
Net decrease in cash and cash equivalents	(1,640)	(4)
Cash and cash equivalents at beginning of period	1,866	2,035
Cash and cash equivalents at end of period	226	2,031
Supplemental disclosure of non-cash investing activities:
Fixed assets vouchered but not paid	46	16
Supplemental disclosure of cash paid during period for:
Income taxes	23	16
Interest	$ 241	$ 240