Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (5,229)	$ (3,129)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	937	623
Other debt related costs included in interest expense	320	548
Provision for bad debt expense	167	13
Share-based compensation expense	32	38
Expense for common stock issuance for payment of transaction costs for the LPC Equity Line	(23)	0
Change in assets and liabilities:
Accounts receivable	7,684	(1,553)
Inventories	186	(28)
Other assets	280	(27)
Accounts payable, accrued expenses and other liabilities	762	276
Net cash provided by (used in) operating activities	5,116	(3,239)
Cash flows from investing activities:
Capital expenditures	0	(89)
Net cash used in investing activities	0	(89)
Cash flows from financing activities:
Borrowings under credit facility	13,800	7,077
Payments under credit facility	(18,928)	(6,689)
Principal payments on Term Loan	(250)	0
Issuance of common stock and warrants, net of issuance costs	0	1,300
Payments on capital lease obligations	(63)	0
Debt issuance costs	(15)	0
Net cash (used in) provided by financing activities	(5,456)	1,688
Net decrease in cash and cash equivalents	(340)	(1,640)
Cash and cash equivalents at beginning of period	884	1,866
Cash and cash equivalents at end of period	544	226
Supplemental disclosure of non-cash investing and financing activities:
Fixed assets vouchered but not paid	94	46
Supplemental disclosure of cash paid during period for:
Income taxes	0	23
Interest	$ 538	$ 241