CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (201)	$ (1,774)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	2,096	1,953
Deferred income taxes	(326)	(1,230)
Stock-based compensation	171	102
Excess tax benefit from employee stock plans	(93)	0
Other	(270)	144
Changes in operating assets and liabilities:
Accounts receivable, net	336	(436)
Inventories	(1,353)	(2,368)
Other current assets	(645)	(297)
Accounts payable and other accrued expenses	2,228	3,352
Accrued salaries, wages and payroll taxes	322	(1,172)
Refundable deposits	268	409
Net cash provided by (used in) operating activities	2,533	(1,317)
Cash flows from investing activities:
Expenditures for property, equipment and leasehold improvements	(2,352)	(1,902)
Net cash used in investing activities	(2,352)	(1,902)
Cash flows from financing activities:
Principal payments on debt and capital lease obligations	(152)	(163)
Proceeds from issuances of common stock	46	94
Excess tax benefit from employee stock plans	93	0
Net cash used in financing activities	(13)	(69)
Increase (decrease) in cash and cash equivalents	168	(3,288)
Cash and cash equivalents:
Beginning of period	2,726	5,013
End of period	2,894	1,725
Supplemental disclosure of cash flow information:
Cash paid for interest	124	182
Cash paid for income taxes, net	74	2
Supplemental disclosure of non-cash information:
Purchases of Property, equipment and leasehold improvements included in Accounts payable	$ 508	$ 540