CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ (63)	$ (948)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	5,468	5,362
Loss on sale or disposal of Property, equipment and leasehold improvements	146	9
Deferred income taxes	(378)	(664)
Stock-based compensation	554	309
Other	875	(73)
Changes in operating assets and liabilities:
Accounts receivable, net	(3,334)	(8,404)
Inventories	3,323	(5,034)
Other current assets	(1,093)	(327)
Accounts payable and other accrued expenses	7,299	8,051
Accrued salaries, wages and payroll taxes	(49)	(1,086)
Refundable deposits	(397)	625
Net cash provided by (used in) operating activities	12,351	(2,180)
Cash flows from investing activities:
Expenditures for Property, equipment and leasehold improvements	(4,920)	(9,220)
Proceeds from sale of Property, equipment and leasehold improvements	91	8
Net cash used in investing activities	(4,829)	(9,212)
Cash flows from financing activities:
Principal payments on debt and capital lease obligations	(261)	(350)
Net borrowings (repayments) under revolving line of credit	(5,756)	11,237
Proceeds from issuances of common stock	87	0
Tax payments related to stock-based awards	0	(71)
Net cash provided by (used in) financing activities	(5,930)	10,816
Increase (decrease) in Cash and cash equivalents	1,592	(576)
Cash and cash equivalents:
Beginning of period	442	911
End of period	2,034	335
Supplemental disclosure of cash flow information:
Cash paid for interest	363	300
Cash paid for income taxes, net	176	80
Supplemental disclosure of non-cash information:
Purchases of Property, equipment and leasehold improvements with capital leases	180	673
Purchases of Property, equipment and leasehold improvements included in Accounts payable at end of period	$ 7,550	$ 1,550