Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 14,434	$ 16,938
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,166	14,312
Gain on sale of assets		(411)
Provision for losses on inventories	3,706	2,439
Stock-based compensation expense	6,827	5,447
Provision for doubtful accounts	126	264
Loss on disposal of property and equipment	1,153	287
Deferred income taxes	(666)	(577)
Excess tax benefits from stock-based compensation	(1,848)	(2,625)
Increase (decrease) in cash, net of acquisition and divestiture, due to changes in:
Accounts receivable	3,108	(3,985)
Inventories	(15,349)	(13,277)
Prepaid expenses and other assets	(3,022)	(2,602)
Accounts payable	2,315	6,204
Accrued payroll and related expenses	(2,107)	8,241
Accrued expenses and other liabilities	2,328	3,946
Other long-term liabilities	471	(999)
Net cash provided by operating activities	25,642	33,602
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(10,135)	(11,895)
Restricted cash	384	582
Proceeds from divestiture of business		5,030
Acquisition of businesses, net of cash acquired	(7,865)
Refundable amounts related to acquisition of a business	(2,319)
Purchase of investments and marketable securities	(824)	(661)
Proceeds from the sale or maturity of investments and marketable securities	123	392
Net cash used in investing activities	(20,636)	(6,552)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	11,000
Repayment of long-term debt and obligations under capital leases	(6,008)	(15,496)
Proceeds from short-term borrowings	1,358	5,430
Repayment of short-term borrowings	(4,971)	(3,613)
Purchases of non-controlling interests		(1,863)
Proceeds from the issuance of common stock under employee plans	1,075	2,642
Tax withholding payment related to net share settlement of equity awards	(3,419)	(2,922)
Purchases of the Company's common stock	(12,149)
Excess tax benefits from stock-based compensation	1,848	2,625
Net cash used in financing activities	(11,266)	(13,197)
Impact of foreign exchange rate changes on cash balances	(906)	333
Net (decrease) increase in cash and cash equivalents	(7,166)	14,186
Cash and cash equivalents at beginning of period	46,883	53,710
Cash and cash equivalents at end of period	39,717	67,896
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	969	1,032
Cash paid during the period for income taxes, net	6,310	3,935
Property and equipment accrued in accounts payable	$ 198	$ 708