Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,664us-gaap_ProfitLoss	$ 7,941us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,966	7,160
Gain on sale of assets		(411)
Provision for losses on inventories	1,223us-gaap_InventoryWriteDown	984us-gaap_InventoryWriteDown
Stock-based compensation expense	4,084us-gaap_ShareBasedCompensation	2,337us-gaap_ShareBasedCompensation
Provision for doubtful accounts	87us-gaap_ProvisionForDoubtfulAccounts	159us-gaap_ProvisionForDoubtfulAccounts
Loss on disposal of property and equipment	1,139	286
Deferred income taxes	(272)us-gaap_DeferredIncomeTaxExpenseBenefit	(336)us-gaap_DeferredIncomeTaxExpenseBenefit
Excess tax benefits from stock-based compensation	(655)
Increase (decrease) in cash, net of acquisition and divestiture, due to changes in:
Accounts receivable	(7,445)	(3,155)
Inventories	(9,275)us-gaap_IncreaseDecreaseInInventories	(6,471)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	(4,761)	(2,947)
Accounts payable	1,962	752
Accrued payroll and related expenses	1,022	134
Accrued expenses and other liabilities	2,205	3,856
Other long-term liabilities	175	(909)
Net cash provided by operating activities	5,119	9,380
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(5,679)	(4,950)
Restricted cash	89	(47)
Proceeds from divestiture of business		5,030
Acquisition of businesses, net of cash acquired	(8,417)
Refundable amounts related to acquisition of business	(1,767)
Purchase of investments and marketable securities	(503)us-gaap_PaymentsToAcquireInvestments	(590)us-gaap_PaymentsToAcquireInvestments
Proceeds from the sale or maturity of investments and marketable securities	123	395
Net cash used in investing activities	(16,154)	(162)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	11,000
Repayment of long-term debt and obligations under capital leases	(4,004)us-gaap_RepaymentsOfLongTermDebt	(12,961)us-gaap_RepaymentsOfLongTermDebt
Proceeds from short-term borrowings	344us-gaap_ProceedsFromShortTermDebt	1,016us-gaap_ProceedsFromShortTermDebt
Repayment of short-term borrowings	(4,599)us-gaap_RepaymentsOfShortTermDebt	(701)us-gaap_RepaymentsOfShortTermDebt
Purchases of non-controlling interests		(931)
Proceeds from the issuance of common stock under employee plans	705	2,789
Tax withholding payment related to net share settlement of equity awards	(3,419)
Purchases of the Company's common stock	(5,995)
Excess tax benefits from stock-based compensation	655
Net cash used in financing activities	(5,313)	(10,788)
Impact of foreign exchange rate changes on cash balances	657	462
Net decrease in cash and cash equivalents	(15,691)	(1,108)
Cash and cash equivalents at beginning of period	46,883	53,710
Cash and cash equivalents at end of period	31,192	52,602
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	462us-gaap_InterestPaid	589us-gaap_InterestPaid
Cash paid during the period for income taxes, net	2,546us-gaap_IncomeTaxesPaidNet	2,007us-gaap_IncomeTaxesPaidNet
Property and equipment accrued in accounts payable	$ 165	$ 450

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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