CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (396)	$ 959
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	8,056	7,221
Loss on sale or disposal of Property, equipment and leasehold improvements	16	318
Deferred income taxes	174	217
Stock-based compensation	642	880
Excess tax benefit from employee stock plans	0	(50)
Other	13	(227)
Changes in operating assets and liabilities:
Accounts receivable, net	(4,816)	(6,978)
Inventories	(2,902)	1,375
Other current assets	410	581
Accounts payable and other accrued expenses	736	2,893
Accrued salaries, wages and payroll taxes	389	661
Refundable deposits	545	452
Net cash provided by operating activities	2,867	8,302
Cash flows from investing activities:
Expenditures for Property, equipment and leasehold improvements	(12,206)	(9,772)
Proceeds from sale of Property, equipment and leasehold improvements	8	410
Expenditures for long-term deposits	(925)	0
Net cash used in investing activities	(13,123)	(9,362)
Cash flows from financing activities:
Principal payments on debt and capital lease obligations	(477)	(968)
Net borrowings under revolving line of credit	10,138	2,900
Proceeds from issuances of common stock	172	64
Tax payments related to stock-based awards	(78)	(151)
Excess tax benefit from employee stock plans	0	50
Net cash provided by financing activities	9,755	1,895
Increase (decrease) in Cash and cash equivalents	(501)	835
Cash and cash equivalents:
Beginning of period	911	981
End of period	410	1,816
Supplemental disclosure of cash flow information:
Cash paid for interest	489	482
Cash paid for income taxes, net	102	58
Supplemental disclosure of non-cash information:
Purchases of Property, equipment and leasehold improvements with capital leases	1,173	0
Purchases of Property, equipment and leasehold improvements included in Accounts payable at end of period	$ 1,685	$ 1,917