Helios (HLIO) 10-K 7 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 28, 2013	Feb. 21, 2014	Jun. 29, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'SUN HYDRAULICS CORP	'	'
Entity Central Index Key	'0001024795	'	'
Current Fiscal Year End Date	'--12-28	'	'
Entity Filer Category	'Accelerated Filer	'	'
Document Type	'10-K	'	'
Document Period End Date	28-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Amendment Flag	'false	'	'
Entity Public Float	'	'	$675,304,800
Entity Common Stock, Shares Outstanding	'	26,357,174	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$54,912	$34,478
Restricted cash	334	329
Accounts receivable, net of allowance for doubtful accounts of $117 and $124	16,984	13,754
Inventories	13,853	12,559
Income taxes receivable	954	728
Deferred income taxes	474	248
Short-term investments	38,729	37,700
Other current assets	2,816	2,649
Total current assets	129,056	102,445
Property, plant and equipment, net	75,731	64,672
Goodwill	5,221	4,472
Other assets	3,470	3,532
Total assets	213,478	175,121
Current liabilities:	'	'
Accounts payable	4,630	4,606
Accrued expenses and other liabilities	7,016	7,641
Dividends payable	2,372	0
Total current liabilities	14,018	12,247
Deferred income taxes	7,747	7,230
Other noncurrent liabilities	285	371
Total liabilities	22,050	19,848
Commitments and contingencies	0	0
Shareholders’ equity:	'	'
Preferred stock, 2,000,000 shares authorized, par value $0.001, no shares outstanding	0	0
Common stock, 40,000,000 shares authorized, par value $0.001, 26,352,692 and 26,094,580 shares outstanding	26	26
Capital in excess of par value	65,391	57,402
Retained earnings	123,420	97,242
Accumulated other comprehensive income (loss)	2,591	603
Total shareholders’ equity	191,428	155,273
Total liabilities and shareholders’ equity	$213,478	$175,121

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for doubtful accounts, accounts receivable	$132	$124
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	40,000,000	40,000,000
Common stock, par value	$0.00	$0.00
Common stock, shares outstanding	26,352,692	26,094,580

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (unaudited) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Net sales	$205,267	$204,367	$204,171
Cost of sales	122,306	123,795	124,956
Gross profit	82,961	80,572	79,215
Selling, engineering and administrative expenses	26,790	26,163	23,946
Operating income	56,171	54,409	55,269
Interest (income) expense, net	-967	-1,368	-775
Foreign currency transaction (gain) loss, net	-27	-116	-161
Miscellaneous (income) expense, net	-7	40	-1,381
Income before income taxes	57,172	55,853	57,586
Income tax provision	19,188	18,455	19,909
Net income	$37,984	$37,398	$37,677
Basic net income per common share (in dollars per share)	$1.45	$1.44	$1.47
Weighted average basic shares outstanding	26,206	25,944	25,642
Diluted net income per common share (in dollars per share)	$1.45	$1.44	$1.47
Weighted average diluted shares outstanding	26,206	25,971	25,684
Dividends declared per share (in dollars per share)	$0.45	$1.48	$0.40

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (unaudited) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net income	$37,984	$37,398	$37,677
Other comprehensive income (loss)	'	'	'
Foreign currency translation adjustments	2,010	2,397	-1,436
Unrealized gain (loss) on available-for-sale securities	-22	326	-549
Total other comprehensive income (loss)	1,988	2,723	-1,985
Comprehensive income	$39,972	$40,121	$35,692

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Shareholders' Equity (unaudited) (USD $)	Total	Preferred stock	Common stock	Capital in excess of par value	Retained earnings	Accumulated other comprehensive income
In Thousands
Beginning Balance at Jan. 01, 2011	$115,024	$0	$26	$44,001	$71,132	($135)
Beginning Balance, Shares at Jan. 01, 2011	'	0	25,523	'	'	'
Stock issued, Restricted Stock, Shares	'	'	88	'	'	'
Shares issued, Restricted Stock	0	'	'	'	'	'
Shares issued, other comp, Shares	'	'	14	'	'	'
Shares issued, Stock Options	61	'	'	61	'	'
Stock issued, Stock Options, Shares	'	'	9	'	'	'
Shares issued, other comp	574	'	'	574	'	'
Shares issued, ESPP, Shares	'	'	29	'	'	'
Shares issued, Stock Options	2,412	'	'	2,412	'	'
Stock Issued During Period, Shares, Employee Stock Ownership Plan	'	'	93	'	'	'
Stock-based compensation	1,752	'	'	1,752	'	'
Shares issued, shared distribution	-10,383	'	'	'	-10,383	'
Tax benefit of stock-based compensation	144	'	'	144	'	'
Net income	37,677	'	'	'	37,677	'
Other comprehensive income (loss)	-1,985	'	'	'	'	-1,985
Ending Balance at Dec. 31, 2011	145,276	0	26	48,944	98,426	-2,120
Ending Balance, Shares at Dec. 31, 2011	'	0	25,756	'	'	'
Shares issued, Restricted Stock	0	'	'	'	'	'
Stock issued, Restricted Stock, Shares	'	'	89	'	'	'
Shares issued, Restricted Stock	0	'	'	'	'	'
Shares issued, other comp, Shares	'	'	56	'	'	'
Shares issued, other comp	700	'	'	700	'	'
Shares issued, ESPP, Shares	'	'	35	'	'	'
Shares issued, Stock Options	4,407	'	'	4,407	'	'
Stock Issued During Period, Shares, Employee Stock Ownership Plan	'	'	159	'	'	'
Stock-based compensation	3,263	'	'	3,263	'	'
Shares issued, shared distribution	-38,582	'	'	'	-38,582	'
Tax benefit of stock-based compensation	88	'	'	88	'	'
Net income	37,398	'	'	'	37,398	'
Other comprehensive income (loss)	2,723	'	'	'	'	2,723
Ending Balance at Dec. 29, 2012	155,273	0	26	57,402	97,242	603
Ending Balance, Shares at Dec. 29, 2012	'	0	26,095	'	'	'
Stock issued, Restricted Stock, Shares	'	'	27	'	'	'
Shares issued, Restricted Stock	0	'	'	'	'	'
Shares issued, other comp, Shares	'	'	90	'	'	'
Shares issued, other comp	859	'	'	859	'	'
Shares issued, ESPP, Shares	'	'	35	'	'	'
Shares issued, Stock Options	3,486	'	'	3,486	'	'
Stock Issued During Period, Shares, Employee Stock Ownership Plan	'	'	106	'	'	'
Stock-based compensation	3,341	'	'	3,341	'	'
Shares issued, shared distribution	-11,806	'	'	'	-11,806	'
Tax benefit of stock-based compensation	303	'	'	303	'	'
Net income	37,984	'	'	'	37,984	'
Other comprehensive income (loss)	1,988	'	'	'	'	1,988
Ending Balance at Dec. 28, 2013	$191,428	$0	$26	$65,391	$123,420	$2,591
Ending Balance, Shares at Dec. 28, 2013	'	0	26,353	'	'	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (unaudited) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income	$37,984	$37,398	$37,677
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Depreciation and amortization	7,227	7,186	6,721
(Gain)Loss on disposal of assets	462	193	-32
Gain on investment in business	-528	0	-1,244
Stock compensation income tax benefit	3,047	2,333	1,752
Deferred director and phantom stock unit expense (income)	70	20	-22
Stock compensation income tax benefit	-303	-88	-144
Deferred director and phantom stock unit expense (income)	-7	26	1
Provision for slow moving inventory	0	112	19
Provision for Deferred Income Taxes	291	325	1,419
(Increase) decrease in, net of acquisition:	'	'	'
Accounts receivable	-3,210	1,903	741
Inventories	-1,226	268	-1,631
Income taxes receivable	77	-520	1,178
Other current assets	-167	-650	-662
Other assets	383	240	-1,081
Increase (decrease) in, net of acquisition:	'	'	'
Accounts payable	24	-742	499
Accrued expenses and other liabilities	3,155	4,547	4,390
Other noncurrent liabilities	-156	-353	-37
Net cash provided by operating activities	47,123	52,198	49,544
Cash flows from investing activities:	'	'	'
Proceeds from sale of joint venture	0	0	1,451
Investment in business, net of cash acquired	-923	-1,140	-1,776
Capital expenditures	-17,935	-13,359	-10,143
Proceeds from dispositions of equipment	230	56	35
Purchases of short-term investments	-28,356	-40,495	-26,833
Proceeds from sale of short-term investments	26,764	32,912	7,517
Net cash used in investing activities	-20,220	-22,026	-29,749
Cash flows from financing activities:	'	'	'
Repayment of debt	0	-169	-100
Stock compensation income tax benefit	0	0	61
Stock compensation income tax benefit	303	88	144
Proceeds from stock issued	859	700	574
Dividends to shareholders	-9,435	-40,900	-9,596
Change in restricted cash	-5	-272	84
Net cash used in financing activities	-8,278	-40,553	-8,833
Effect of exchange rate changes on cash and cash equivalents	1,809	2,025	-1,334
Net increase (decrease) in cash and cash equivalents	20,434	-8,356	9,628
Cash and cash equivalents, beginning of period	34,478	42,834	33,206
Cash and cash equivalents, end of period	54,912	34,478	42,834
Cash paid:	'	'	'
Income taxes	19,123	18,739	17,456
Supplemental disclosure of noncash transactions:	'	'	'
Common stock issued for shared distribution through accrued expenses and other liabilities	3,486	4,407	2,412
Common stock issued for deferred director’s compensation through other noncurrent liabilities	294	930	0
Unrealized gain (loss) on available for sale securities	($22)	$326	($549)

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Business	12 Months Ended
	Dec. 28, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
BASIS OF PRESENTATION AND SUMMARY OF BUSINESS	'
	BUSINESS
	Sun Hydraulics Corporation, and its wholly-owned subsidiaries, design, manufacture, and sell screw-in cartridge valves and manifolds used in hydraulic systems. The Company has facilities in the United States, the United Kingdom, Germany, Korea, France, China, and India. Sun Hydraulics Corporation (“Sun Hydraulics”), with its main offices located in Sarasota, Florida, designs, manufactures, and sells its products primarily through distributors. Sun Hydraulik Holdings Limited (“Sun Holdings”), a wholly-owned subsidiary of Sun Hydraulics, was formed to provide a holding company for the European market operations; its wholly-owned subsidiaries are Sun Hydraulics Limited (a British corporation, “Sun Ltd.”) and Sun Hydraulik GmbH (a German corporation, “Sun GmbH”). Sun Ltd. operates a manufacturing and distribution facility located in Coventry, England, and Sun GmbH operates a manufacturing and distribution facility located in Erkelenz, Germany. Sun Hydraulics Korea Corporation (“Sun Korea”), a wholly-owned subsidiary of Sun Hydraulics, located in Inchon, South Korea, operates a manufacturing and distribution facility. In 2012, Sun Korea acquired Seungwon Solutions Corporation (“Seungwon”), also located in Inchon, South Korea, a component supplier to Sun Korea and third parties. Sun Hydraulics (France) (“Sun France”), a liaison office located in Bordeaux, France, is used to service the French market. Sun Hydraulics established Sun Hydraulics China Co. Ltd, a representative office in Shanghai in January 2011, to develop new business opportunities in the Chinese market. Sun Hydraulics (India), a liaison office in Bangalore, India, is used to develop new business opportunities in the Indian market. On September 27, 2011, Sun Hydraulics purchased the outstanding shares of High Country Tek, Inc. (“HCT”) it did not already own. HCT, now a wholly-owned subsidiary of Sun Hydraulics, is located in Nevada City, California, and designs and manufactures ruggedized electronic/hydraulic control solutions for mobile equipment markets. WhiteOak Controls, Inc. (“WhiteOak”), a 40% equity method investment, located in Mediapolis, Iowa, designs and produces complementary electronic control products. On April 1, 2013, Sun Hydraulics purchased the remaining 60% of WhiteOak, which was merged into HCT (see note 9).

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 28, 2013
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Principles of Consolidation
	The consolidated financial statements include the accounts and operations of Sun Hydraulics and its direct and indirect subsidiaries. All significant intercompany accounts and transactions are eliminated in consolidation. The Company used the equity method of accounting for its investment in WhiteOak until April 1, 2013, when it acquired the remaining 60% of WhiteOak (see Note 7). The Company did not have a majority ownership in or exercise control over this entity prior to that date.
	Critical Accounting Policies and Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates are used in the determination of impairment of long-lived assets, inventory, goodwill, accruals, income taxes, and fair value of short-term investments.
	Cash, Cash Equivalents and Short-term Investments
	The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.
	The Company’s short-term investments have been classified and accounted for as available-for-sale. Management determines the appropriate classification of its investments at the time of purchase and reevaluates the designation at each balance sheet date. The Company may or may not hold securities with stated maturities greater than 12 months until maturity. As management views these securities as available to support current operations, the Company classifies securities with maturities beyond 12 months as current assets under the caption short-term investments in the accompanying Consolidated Balance Sheets. The Company’s short-term investments are carried at fair value, with the unrealized gains and losses reported as a component of shareholder’s equity. Realized gains and losses on sales of short-term investments are generally determined using the specific identification method, and are included in miscellaneous (income) expense in the Consolidated Statements of Operations.
	Accounts Receivable
	The Company sells to most of its customers on a recurring basis, primarily through distributors with which the Company maintains long-term relationships. As a result, bad debt experience has not been material. The allowance for doubtful accounts is determined on a specific identification basis by a review of those accounts that are significantly in arrears. There can be no assurance that a distributor or a large direct sale customer with overdue accounts receivable balances will not develop financial difficulties and default on payment. See the consolidated balance sheets for allowance amounts.
	Inventory
	Inventories are valued at the lower of cost or market, with cost determined on a first-in, first-out basis. The Company offers a wide variety of standard products and as a matter of policy does not discontinue products. On an ongoing basis, component parts found to be obsolete through design or process changes are disposed of and charged to material cost. The Company reviews on-hand balances of products and component parts against specific criteria. Products and component parts without usage or that have excess quantities on hand are evaluated. An inventory reserve is then established for the full inventory carrying value of those products and component parts deemed to be obsolete or slow moving. See Note 5 to the Financial Statements for inventory reserve amounts.
	Property, Plant and Equipment
	Property, plant and equipment is stated at cost. Expenditures for repairs and improvements that significantly add to the productive capacity or extend the useful life of an asset are capitalized. Repairs and maintenance are expensed as incurred. Depreciation is computed using the straight line method over the following useful lives:
		Years
	Computer Equipment	5-Mar
	Machinery and equipment	12-Apr
	Furniture and fixtures	10-Apr
	Leasehold and land improvements	15-May
	Buildings	40
	Gains or losses on the retirement, sale, or disposition of property, plant, and equipment are reflected in the Consolidated Statement of Operations in the period in which the assets are taken out of service.
	Fair Value Measurements
	The Company applies fair value accounting guidelines for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). Under these guidelines, fair value is defined as the price that would be received for the sale of an asset or paid to transfer a liability (i.e. an exit price) in an orderly transaction between market participants at the measurement date. The guidance establishes a three-tier fair value hierarchy which prioritizes the inputs used in measuring fair value as follows:
	Level 1 - Quoted prices in active markets for identical assets or liabilities.
	Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets.
	Level 3 - Unobservable inputs that are supported by little, infrequent, or no market activity and reflect the Company’s own assumptions about inputs used in pricing the asset or liability.
	The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
	The Company’s valuation techniques used to measure the fair value of marketable equity securities were derived from quoted prices in active markets for identical assets or liabilities. The valuation techniques used to measure the fair value of all other financial instruments were valued based on quoted market prices or model driven valuations using significant inputs derived from or corroborated by observable market data.
	Goodwill
	Goodwill, which represents the excess of the purchase price of acquisition over the fair value of the net assets acquired, is carried at cost. Goodwill is tested for impairment annually or more often if events or circumstances indicate a reduction in the fair value below the carrying value. The carrying value of assets is calculated at the reporting unit. An impairment loss is recorded to the extent that the fair value of the goodwill within the reporting unit is less than its carrying value.
	The Company completed its annual goodwill impairment testing and determined that the carrying amount of goodwill was not impaired. See Note 7 to the Financial Statements for goodwill amounts.
	Impairment of Long-Lived Assets
	Long-lived assets, such as property and equipment, and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset is measured by comparison of its carrying amount to future net cash flows the asset is expected to generate. If such assets are considered impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset exceeds its fair value.
	Accruals
	The Company makes estimates related to certain employee benefits and miscellaneous accruals. Estimates for employee benefit accruals are based on management’s assessment of estimated liabilities related to workers’ compensation, health care benefits and annual contributions to an employee stock ownership plan (“ESOP”), established in 2004 as part of the Company’s retirement plan. Estimates for miscellaneous accruals are based on management’s assessment of estimated liabilities for costs incurred.
	The Company accrues for health care benefit costs under a self-funded plan. The Company purchases re-insurance for both specific and aggregate stop losses on claims that exceed $155 on an individual basis and approximately $8,000 on an aggregate basis.
	Revenue Recognition
	The Company reports revenues, net of sales incentives, when title passes and risk of loss transfers to the customer. The effect of material non-recurring events is provided for when they become known.
	Shipping and Handling Costs
	Shipping and handling costs billed to distributors and customers are recorded in revenue. Shipping costs incurred by the Company are recorded in cost of goods sold.
	Foreign Currency Translation and Transactions
	The Pound Sterling is the functional currency of Sun Ltd. The Euro is the functional currency of Sun GmbH. The South Korean Won is the functional currency of Sun Korea. The U.S. Dollar is the functional currency for Sun Hydraulics and the reporting currency for the consolidated group. The assets and liabilities of Sun Ltd., Sun GmbH, and Sun Korea are translated at the exchange rate in effect at the balance sheet date, and income and expense items are translated at the average annual rate of exchange for the period. The resulting unrealized translation gains and losses are included as a component of shareholders’ equity designated as “accumulated other comprehensive income (loss).” Realized gains and losses from foreign currency transactions are included in the Consolidated Statement of Operations.
	Income Taxes
	The Company’s income tax policy provides for a liability approach under which deferred income taxes are provided for based upon enacted tax laws and rates applicable to the periods in which the taxes become payable. These differences result from items reported differently for financial reporting and income tax purposes, primarily depreciation, accrued expenses and reserves.
	The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return. The Company recognizes potential interest and penalties related to its unrecognized tax benefits in income tax expense.
	Stock-Based Compensation
	All share-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as an expense in earnings over the requisite service period. Benefits of tax deductions in excess of recognized compensation costs are reported as a financing cash inflow.
	Reclassification
	Non-trade receivables classified as accounts receivable in the prior period were reclassified to other current assets to conform to the current year presentation.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 28, 2013
Fair Value Disclosures [Abstract]	'
FAIR VALUE OF FINANCIAL INSTRUMENTS	'
	FAIR VALUE OF FINANCIAL INSTRUMENTS
	The following tables provide information regarding the Company’s assets and liabilities measured at fair value on a recurring basis at December 28, 2013, and December 29, 2012.
		28-Dec-13
		Adjusted Cost		Unrealized Gains			Unrealized Losses		Fair Value
	Assets
	Level 1:
	Equity securities	2,049		137			(64	)	2,122
	Mutual funds	3,865		19			(1	)	3,883
	Subtotal	5,914		156			(65	)	6,005
	Level 2:
	Corporate fixed income	25,240		126			(250	)	25,116
	Municipal bonds	2,775		1			(28	)	2,748
	Certificates of deposit and time deposits	4,014		1			—		4,015
	Asset backed securities	974		—			(129	)	845
	Subtotal	33,003		128			(407	)	32,724
	Total	38,917		284			(472	)	38,729
	Liabilities
	Level 1:
	Phantom stock units	38		—			—		38
	Total	38		—			—		38
		December 29, 2012
		Adjusted Cost		Unrealized Gains			Unrealized Losses		Fair Value
	Assets
	Level 1:
	Equity securities	602		6			(86	)	522
	Mutual funds	1,936		—			(28	)	1,908
	Subtotal	2,538		6			(114	)	2,430
	Level 2:
	Corporate fixed income	18,270		48			(105	)	18,213
	Government securities	195		14			—		209
	Municipal bonds	4,525		4			(15	)	4,514
	Certificates of deposit and time deposits	10,891		1			—		10,892
	Asset backed securities	1,447		—			(5	)	1,442
	Subtotal	35,328		67			(125	)	35,270
	Total	37,866		73			(239	)	37,700
	Liabilities
	Level 1:
	Deferred director stock units	263		—			—		263
	Phantom stock units	30		—			—		30
	Total	293		—			—		293
	The Company recognized a net realized loss on investments during the twelve months ended December 28, 2013 of $1 and a net realized gain of $22 during the twelve months ended December 29, 2012. As of December 28, 2013, gross unrealized losses related to individual securities that had been in a continuous loss position for 12 months or longer were not significant. The Company considers these unrealized losses in market value of its investments to be temporary in nature. When evaluating an investment for other-than-temporary impairment, the Company reviews factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, and the Company’s intent to sell, or whether it is more likely than not it will be required to sell, the investment before recovery of the investment’s cost basis. During the twelve months ended December 28, 2013, the Company recognized an impairment charge of $61, which is included in the net realized loss for the period. This resulted from the deterioration of the financial condition of an issuer of a corporate bond security.
	Maturities of investments at December 28, 2013 are as follows:
		Adjusted Cost			Fair Value
	Due in less than one year	$	16,352		$	16,336
	Due after one year but within five years	9,753			9,625
	Due after five years but within ten years	2,336			2,345
	Due after ten years	4,562			4,418
	Equity securities	2,049			2,122
	Mutual Funds	3,865			3,883
	Total	$	38,917		$	38,729
	The Company reports deferred director stock units and phantom stock units as a liability. All remaining deferred stock units were issued in 2013. The Company recognized expense relating to these liabilities of $70 and $20, for the periods ended December 28, 2013, and December 29, 2012. Phantom stock units vest over a period of three years.
	The Company did not have any fair value adjustments for assets and liabilities measured at fair value on a nonrecurring basis during the period ended December 28, 2013.

Restricted_Cash

Restricted Cash	12 Months Ended
	Dec. 28, 2013
Restricted Cash [Abstract]	'
RESTRICTED CASH	'
	RESTRICTED CASH
	On December 28, 2013 and December 29, 2012, the Company had restricted cash of $334 and $329, respectively. Restricted cash reserves for customs and excise taxes in the U.K. operation were $50 and $48 at December 28, 2013 and December 29, 2012, respectively. The restricted amount was calculated as an estimate of two months of customs and excise taxes for items coming into the Company’s U.K. operations and is held with Lloyds TSB in the U.K. Restricted cash of $284 and $281 at December 28, 2013 and December 29, 2012, respectively, represents the holdback of the purchase price associated with the acquisition of Seungwon on October 18, 2012.

Inventories

Inventories	12 Months Ended
	Dec. 28, 2013
Inventory Disclosure [Abstract]	'
INVENTORIES	'
	INVENTORIES
		28-Dec-13			December 29,  2012
	Raw materials	$	6,037		$	5,564
	Work in process	4,258			3,695
	Finished goods	4,238			3,980
	Provision for slow moving inventory	(680		)	(680		)
	Total	$	13,853		$	12,559

Property_Plant_and_Equipment

Property, Plant, and Equipment	12 Months Ended
	Dec. 28, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	PROPERTY, PLANT, AND EQUIPMENT
		December 28, 2013			December 29, 2012
	Machinery and equipment	$	92,549		$	83,480
	Office furniture and equipment	7,969			11,152
	Buildings	30,771			30,255
	Leasehold and land improvements	2,644			2,785
	Land	7,490			7,464
		$	141,423		$	135,136
	Less: Accumulated depreciation	(86,484		)	(80,154		)
	Construction in progress	20,792			9,690
	Total	$	75,731		$	64,672
	Depreciation expense for the years ended December 28, 2013, December 29, 2012, and December 31, 2011 totaled $6,511, $6,514, and $6,524, respectively.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
GOODWILL AND INTANGIBLE ASSETS	'
	GOODWILL AND INTANGIBLE ASSETS
	A summary of changes in goodwill at December 28. 2013 and December 29, 2012 is as follows:
	Balance, December 31, 2011	$	2,691
	Acquisitions	1,731
	Currency translation	50
	Balance, December 29, 2012	$	4,472
	Acquisitions	726
	Currency translation	23
	Balance, December 28, 2013	$	5,221
	Valuation models reflecting the expected future cash flow projections are used to value reporting units. A valuation of the reporting unit at December 28, 2013, indicated that there was no impairment of the carrying value of the goodwill at Sun Korea. A valuation of the reporting unit at September 28, 2013 indicated that there was no impairment of the carrying value of the goodwill at HCT. As of December 28, 2013, no factors were identified that indicated impairment of the carrying value of goodwill at HCT.
	The Company recognized $2,658 and $746 in identifiable intangible assets as a result of the acquisitions of HCT and WhiteOak, respectively. Intangible assets are held in other assets on the balance sheet. At December 28, 2013, and December 29, 2012, intangible assets consisted of the following:
		28-Dec-13							29-Dec-12
		Gross  carrying		Accumulated			Net carrying		Gross  carrying		Accumulated			Net carrying
		amount		amortization			amount		amount		amortization			amount
	Definite-lived intangibles:
	Trade Name	$	774	$	(184	)	$	590	$	756	$	(95	)	$	661
	Non-compete agreement	11		(4		)	7		—		—			—
	Technology	868		(130		)	738		697		(256		)	441
	Customer Relationships	1,751		(179		)	1,572		1,475		(92		)	1,383
		$	3,404	$	(497	)	$	2,907	$	2,928	$	(443	)	$	2,485
	Technology associated with our original equity method investment in WhiteOak is included in the prior year numbers above. As a result of the acquisition, our original investment is eliminated upon consolidation. This includes gross technology of $270 and $209 of accumulated amortization through March 30, 2013.
	Total estimated amortization expense for the years 2014 through 2018 is presented below.
	Year:
	2014	264
	2015	256
	2016	255
	2017	255
	2018	255
	Total	$	1,285
	Intangible assets are evaluated for impairment whenever events or circumstances indicate that the undiscounted net cash flows to be generated by their use over their expected useful lives and eventual disposition may be less than their net carrying value. No such events or circumstances occurred during the twelve months ended December 28, 2013.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 28, 2013
Business Combinations [Abstract]	'
ACQUISITIONS	'
	ACQUISITIONS
	On April 1, 2013, the Company acquired the remaining 60% of the capital stock of WhiteOak that it did not already own for $1,000. WhiteOak has been merged into HCT and relocated to HCT's facility in California. HCT manufactures, markets, sells and has design control for all current WhiteOak products. The combination of HCT and WhiteOak gives Sun full ownership of the technology to develop the next generation of Sun's electronic control products.
	The Company recorded approximately $726 in goodwill, $746 in definite lived intangible assets, and $12 in transaction costs related to the acquisition. Of the $746 of acquired intangible assets, $18 was assigned to the WhiteOak trade name (1 year useful life), $11 was assigned to non-compete agreements (2 year useful life), $276 was assigned to customer relationships (15 year useful life), and $441 was assigned to technology (10 year useful life). Additionally, the Company recorded a gain of $528 as a result of remeasuring to fair value its 40% equity interest in WhiteOak held before the business combination. This gain is included in miscellaneous income on the Company's Consolidated Statement of Operations.
	On October 18, 2012, the Company, through Sun Korea, purchased all of the outstanding stock of Seungwon Solutions Corporation (“Seungwon”) for approximately $1,458. Seungwon is a component supplier, and approximately 80% of its sales are to Sun Korea.
	The Company recorded approximately $1,731 in goodwill and approximately $80 in transaction costs related to the acquisition.
	The results of operations of WhiteOak and Seungwon have been included in the Company’s consolidated results since the dates of acquisition. Supplemental pro forma information and disclosure of acquired assets and liabilities have not been provided as these acquisitions did not have a material impact on the consolidated financial statements individually or in the aggregate.
	On September 27, 2011, Sun purchased the remaining preferred and common shares of HCT that it did not already own. HCT designs and produces encapsulated, modular, highly ruggedized digital and analog electronic controller products for the global fluid power and motion control industry. HCT’s products complement Sun’s electro-hydraulic line of valves providing reliable, easy, simple and accurate control of individual valves, or seamless management of systems and sub-systems.
	Goodwill arising from the acquisition was $1,976 consisting of the value of the workforce, synergies and competitive advantages obtained as a result of the acquisition. Identifiable intangible assets arising from the acquisition consist of the HCT Trade Name, Patented Technology, Unpatented Technology, and Customer Relationships. These identifiable intangibles totaled $2,658, and are amortized over ten years with the exception of Customer Relationships, which are amortized over twenty years. These amounts are recorded as other assets on the consolidated balance sheet.
	The following table summarizes the consideration paid for HCT and the amounts of the assets acquired and liabilities assumed,
	recognized at the acquisition date.
	At September 27, 2011
	Consideration
	Cash	$	1,894
	Stock	12
	Fair value of total consideration transferred	$	1,906
	Fair value of Sun's equity interest in HCT held before the business combination	1,472
	Total	$	3,378
	Acquisition-related costs (included in Selling, engineering, and administrative expenses)	40
	Recognized amounts of identifiable assets acquired and liabilities assumed
	Cash	$	130
	Accounts receivable	570
	Inventory	444
	Property, plant, and equipment	317
	Identifiable intangible assets	2,658
	Other assets	210
	Accounts payable and accrued expenses	(748		)
	Notes payable	(2,123		)
	Other liabilities	(56		)
	Total identifiable net assets	$	1,402
	Goodwill	1,976
	Total	$	3,378
	Approximately half of the acquisition-related costs above were incurred in the third quarter with the remainder incurred in the
	Company’s fourth quarter. The amount of notes payable above is primarily made up of amounts due to Sun Hydraulics and eliminated upon consolidation.
	Sun Hydraulics’ fair value of the equity interest in HCT held before the business combination was $1,472. The fair value of the previously held equity interest was determined based on the current purchase price per the purchase agreement before the deduction for option and warrant proceeds. Sun Hydraulics recognized a gain of $1,244 as a result of remeasuring to fair value, based on the current purchase price, its 38% equity interest in HCT held before the business combination. The equity interest was diluted from the original investment as a result of warrant and option exercises. This gain was included in net miscellaneous income on the consolidated statements of operations for the year ending December 31, 2011.
	For the period ending October 1, 2011, the Company accounted for HCT under the equity method. The revenue and earnings for HCT included in Sun’s Consolidated Statement of Operations for the year ended December 31, 2011, and the revenue and earnings of the combined entity had the acquisition date been January 2, 2011 were:
		Revenue			Earnings
	Actual from 10/02/11 to 12/31/2011	$	1,270		$	(58	)
		Revenue (unaudited)			Earnings (unaudited)
	Supplemental pro forma from 01/02/2011 to 12/31/2011	$	206,968		$	37,534

Other_Assets_Other_Assets

Other Assets Other Assets	12 Months Ended
	Dec. 28, 2013
Other Assets [Abstract]	'
Other Assets	'
	OTHER ASSETS
		28-Dec-13		29-Dec-12
	Definite-lived intangibles, net of amortization of $497 and $443	$	2,907	$	2,485
	Equity investment in WhiteOak Controls, Inc.	—		69
	Loan acquisition costs,
	net of amortization of $42 and $24	44		62
	Deposits with suppliers	129		171
	Notes receivable	337		650
	Other	53		95
	Total	$	3,470	$	3,532

Accrued_Expenses_and_Other_Lia

Accrued Expenses and Other Liabilities (Notes)	12 Months Ended
	Dec. 28, 2013
Accrued Expenses and Other Liabilities [Abstract]	'
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]	'
	ACCRUED EXPENSES AND OTHER LIABILITIES
		December 28, 2013		December 29, 2012
	Compensation and benefits	$	5,546	$	5,581
	Self insurance liability	703		1,007
	Other	767		1,053
	Total	$	7,016	$	7,641

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 28, 2013
Long-term Debt, Unclassified [Abstract]	'
LONG-TERM DEBT	'
	LONG-TERM DEBT
	Effective August 1, 2011, the Company entered into a credit and security agreement in the U.S. with Fifth Third Bank (the “Bank”). The agreement provides for three separate credit facilities totaling $50,000.
	Facility A is a $15,000 unsecured revolving line of credit and requires monthly payments of interest. Facility A has a floating interest rate of 1.45% over the 30-day LIBOR Rate (as defined).
	Facility B is an accordion feature to increase the revolving line of credit to a $35,000 secured revolving line of credit. Facility B will be secured by the Company’s U.S. assets, including its manufacturing facilities, and requires monthly payments of interest. Facility B will bear interest at the 30-day LIBOR Rate or the Bank’s Base Rate (as defined), at the Company’s discretion, plus a margin based on the Borrower’s Funded Debt to EBITDA Leverage Ratio (as defined). The LIBOR Margin ranges from 1.45% to 2.25% and the Bank’s Base Rate ranges from (0.25)% to 0.00%.
	Facility C is a $15,000 construction and term loan. The Company did not activate Facility C for the construction of its new Sarasota factory.
	Facility A or Facility B (if activated) is payable in full on August 1, 2016. Maturity may be accelerated by the Bank upon an Event of Default (as defined). Prepayment may be made without penalty or premium at any time upon the required notice to the Bank.
	Facility A is subject to debt covenants (capitalized terms are defined therein) including: 1) Minimum Tangible Net Worth of not less than $92,000, increased annually by 50% of Net Income, and 2) Minimum EBITDA of not less than $5,000; and requires the Company to maintain its primary domestic deposit accounts with the bank. At December 28, 2013, the Company was in compliance with all debt covenants related to Facility A as follows:
	Covenant	Required Ratio/Amount	Actual Ratio/Amount
	Minimum Tangible Net Worth	$148,530	$	183,236
	Minimum EBITDA	Not less than $5 million	$	62,742
	If Facility B is activated, covenant 2 above will automatically terminate and two additional covenants will be required: 1) Funded Debt to EBITDA ratio equal to or less than 3.0:1.0, and 2) EBIT to Interest Expense ratio of not less than 2.5:1.0. As of December 28, 2013, the Company had not activated Facility B.
	The Company did not have any amounts drawn on Facilities A, B, or C for the periods ended December 28, 2013, and December 29, 2012.

Dividends_to_Shareholders_Divi

Dividends to Shareholders Dividends to Shareholders	12 Months Ended
	Dec. 28, 2013
Equity [Abstract]	'
Dividends to Shareholders	'
	DIVIDENDS TO SHAREHOLDERS
	The Company declared dividends of $11,806, $38,582, and $10,383 to shareholders in 2013, 2012, and 2011, respectively.
	Except as noted below, the Company declared the following regular quarterly dividends to shareholders of record on the last day of the respective quarter, paid on the 15th day of each month following the date of declaration:
		2013		2012		2011
	First quarter	$	0.09	$	0.09	$	0.06
	Second quarter	0.09		0.09		0.09
	Third quarter	0.09		0.09		0.09
	Fourth quarter	0.09		0.09		0.09
	In addition to the regular quarterly dividends, the Company declared shared distribution cash dividends in 2013, 2012 and 2011, equal to $0.09, $0.12 and $0.07, respectively. The 2013 dividend was paid on March 31, 2013, to shareholders of record on March 15, 2013, the 2012 dividend was paid on March 31, 2012, to shareholders of record on March 22, 2012, and the 2011 dividend was paid on March 31, 2011, to shareholders of record as of March 15, 2011. The shared distribution was introduced in 2008 as a way to reward both shareholders and employees when the Company has a successful year. The Board of Directors has declared a shared distribution cash dividend of $0.09 per share, payable on March 31, 2014, to shareholders of record as of March 15, 2014.
	In light of the Company’s cash position, its current and perceived uses for cash, and the likely increase in income tax rates on corporate dividends as of January 1, 2013, the Board of Directors in December 2012 declared a special one-time cash dividend of $1.00 per share to shareholders of record as of December 14, 2012. In anticipation of the expected tax law changes in 2013, the payment date for both the special dividend and the regular quarterly dividend of $0.09 per share was December 28, 2012.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 28, 2013
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	Deferred income tax assets and liabilities are provided to reflect the future tax consequences of differences between the tax basis of assets and liabilities and their reported amounts in the financial statements.
	For financial reporting purposes, income before income taxes includes the following components:
		For the year ended
		December 28, 2013				December 29, 2012				December 31, 2011
	United States	$	46,314			$	44,957			$	43,513
	Foreign	10,858				10,896				14,073
	Total	$	57,172			$	55,853			$	57,586
	The Company derives its pretax income based on the consolidated results of its legal entities. The Company has made the decision to consolidate engineering and manufacturing for the most part in the U.S. The Company’s foreign subsidiaries primarily act as part of our sales and distribution channel, resulting in different pretax income levels. Products manufactured in the U.S. are sold worldwide and are the primary reason that pretax income in the U.S. is higher than foreign pretax income. The U.S. legal entity had third party export sales of $54,213, $50,231, and $49,753 for the years 2013, 2012, and 2011, respectively. Foreign pretax income is impacted by the level of foreign manufacturing, sales at varying market levels, as well as direct sales to large OEM customers.
	The components of the income tax provision (benefit) are as follows:
		For the year ended
		December 28, 2013				December 29, 2012				December 31, 2011
	Current tax expense (benefit):
	United States	$	15,634			$	15,396			$	14,034
	State and local	950				924				436
	Foreign	2,466				1,788				3,972
	Total Current	19,050				18,108				18,442
	Deferred tax expense (benefit):
	United States	158				545				1,095
	State and local	6				12				471
	Foreign	(26		)		(210		)		(99		)
	Total Deferred	138				347				1,467
	Total income tax provision	$	19,188			$	18,455			$	19,909
	The reconciliation between the effective income tax rate and the U.S. federal statutory rate is as follows:
		For the year ended
		28-Dec-13				29-Dec-12				31-Dec-11
	U.S. federal taxes at the statutory rate	$	20,010			$	19,549			$	20,155
	Increase (decrease)
	Foreign tax credit	(433		)		(358		)		(1,026		)
	Domestic production activity deduction	(1,632		)		(1,483		)		(1,075		)
	Research and Development Tax Credit - Current Year	(50		)		(50		)		(150		)
	Foreign income taxed at lower rate	(1,013		)		(901		)		(1,052		)
	Nondeductible items	302				411				1,049
	State and local taxes, net	957				935				907
	Change in reserve	168				710				440
	Other	879				(358		)		661
	Income tax provision	$	19,188			$	18,455			$	19,909
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income taxes. The temporary differences that give rise to significant portions of the deferred tax assets and liabilities as of December 28, 2013, and December 29, 2012 are presented below:
				28-Dec-13			29-Dec-12
	Deferred tax assets:
		Current:
			Accrued expenses and other	$	474		$	248
		Total current deferred tax assets		474			248
		Noncurrent:
			Accrued expenses and other	2,414			1,426
		Total noncurrent deferred tax assets		2,414			1,426
	Deferred tax liabilities:
		Noncurrent:
			Depreciation	(8,867		)	(8,656		)
			Other	(1,294		)	—
	Total noncurrent deferred tax liabilities			(10,161		)	(8,656		)
	Net noncurrent deferred tax liability			$	(7,747	)	$	(7,230	)
	A valuation allowance to reduce the deferred tax assets reported is required if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. For the fiscal years ended 2013 and 2012, management has determined that a valuation allowance was not required.
	The Company intends and has the ability to indefinitely reinvest the earnings of its non-U.S. subsidiaries, which reflect full provision for non-U.S. income taxes, to expand its international operations. These earnings relate to ongoing operations and, at December 28, 2013, cumulative earnings were approximately $62 million. Accordingly, no provision has been made for U.S. income taxes that might be payable upon repatriation of such earnings. In the event any earnings of non-U.S. subsidiaries are repatriated, the Company will provide U.S. income taxes upon repatriation of such earnings, which will be offset by applicable foreign tax credits, subject to certain limitations.
	The Company prescribes a recognition threshold and measurement attribute for an uncertain tax position taken or expected to be taken in a tax return.
	The following is a roll-forward of the Company’s unrecognized tax benefits:
	Unrecognized tax benefits - January 1, 2011	169
	Increases from positions taken during prior periods	440
	Lapse of statute of limitations	—
	Unrecognized tax benefits - December 31, 2011	609
	Increases from positions taken during prior periods	710
	Settled positions	(124	)
	Lapse of statute of limitations	—
Unrecognized tax benefits - December 29, 2012	1,195
Increases from positions taken during prior periods	168
Settled positions	(241	)
Lapse of statute of limitations	—
Unrecognized tax benefits - December 28, 2013	1,122
At December 28, 2013, the Company had an unrecognized tax benefit of $1,122 including accrued interest. If recognized, the unrecognized tax benefit would have a favorable effect on the effective tax rate in future periods. The Company recognizes interest and penalties related to income tax matters in income tax expense. Interest related to the unrecognized tax benefit has been recognized and included in income tax expense. Interest accrued as of December 28, 2013, is not considered material to the Company’s consolidated financial statements.
The Company files U.S. federal income tax returns as well as income tax returns in various states and foreign jurisdictions. The Company is no longer subject to income tax examinations by tax authorities for years prior to 2004 for the majority of tax jurisdictions.
The Company’s federal returns are currently under examination by the Internal Revenue Service (IRS) in the United States for the periods 2004 through 2011. To date, there have not been any significant proposed adjustments that have not been accounted for in the Company’s consolidated financial statements.
Audit outcomes and the timing of audit settlements are subject to significant uncertainty. It is reasonably possible that within the next twelve months the Company will resolve some or all of the matters presently under consideration for 2004 through 2011 with the IRS and that there could be significant increases or decreases to unrecognized tax benefits.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 28, 2013
Share-based Compensation [Abstract]	'
STOCK-BASED COMPENSATION	'
	STOCK-BASED COMPENSATION
	The Company’s 2006 Stock Option Plan (“2006 Plan”) provides for the grant of incentive stock options and nonqualified stock options for the purchase of up to an aggregate of 1,125,000 shares of the Company’s common stock by officers, employees and directors of the Company. Under the terms of the plan, incentive stock options may be granted to employees at an exercise price per share of not less than the fair value per common share on the date of the grant (not less than 110% of the fair value in the case of holders of more than 10% of the Company’s voting stock). Nonqualified stock options may be granted at the discretion of the Company’s Board of Directors. The maximum term of an option may not exceed 10 years, and options become exercisable at such times and in such installments as determined by the Board of Directors. No awards have been granted under the 2006 Plan.
	The Company’s 2001 Restricted Stock Plan provides for the grant of restricted stock of up to an aggregate of 928,125 shares of the Company’s common stock to officers, employees, consultants and directors of the Company. Under the terms of the plan, the minimum period before any shares become non-forfeitable may not be less than six months. The 2001 Restricted Stock Plan expired in 2011 and was replaced in September 2011 with the 2011 Equity Incentive Plan (“2011 Plan”). The 2011 Plan provides for the grant of up to an aggregate of 1,000,000 shares of restricted stock, restricted share units, stock appreciation rights, dividend or dividend equivalent rights, stock awards and other awards valued in whole or in part by reference to or otherwise based on the Company’s common stock, to officers, employees and directors of the Company. The 2011 Plan was approved by the Company’s shareholders at the 2012 Annual Meeting. At December 28, 2013, 733,912 shares remained available to be issued through the 2011 Plan. Compensation cost is measured at the date of the grant and is recognized in earnings over the period in which the shares vest. Restricted stock expense for the twelve months ended December 28, 2013, and December 29, 2012, totaled $2,234 and $1,695 respectively.
	The following table summarizes restricted stock activity for the years ended December 28, 2013, December 29, 2012, and December 31, 2011:
		Number		Weighted
		of shares		average
				grant-date
				fair value
	Nonvested balance at January 1, 2011	129		$	17.41
	Granted	88		28.41
	Vested	(63	)	16.04
	Forfeitures	—		—
	Nonvested balance at December 31, 2011	154		$	24.25
	Granted	89		25.41
	Vested	(72	)	21.95
	Forfeitures	(2	)	26.12
	Nonvested balance at December 29, 2012	169		$	25.81
	Granted	90		37.64
	Vested	(81	)	28.08
	Forfeitures	(2	)	26.5
	Nonvested balance at December 28, 2013	176		$	32.13
	The Company had $4,740 of total unrecognized compensation cost related to restricted stock awards granted under the 2011 Plan as of December 28, 2013. That cost is expected to be recognized over a weighted average period of 1.61 years. The remaining shares outstanding from the 2001 Restricted Stock Plan vested during 2013.
	The Company maintains an Employee Stock Purchase Plan (“ESPP”), in which most employees are eligible to participate. Employees in the United States who choose to participate are granted an opportunity to purchase common stock at 85 percent of market value on the first or last day of the quarterly purchase period, whichever is lower. Employees in the United Kingdom, under a separate plan, are granted an opportunity to purchase common stock at market value, on the first or last day of the quarterly purchase period, whichever is lower, with the Company issuing one additional free share of common stock for each six shares purchased by the employee under the ESPP. The ESPP authorizes the issuance, and the purchase by employees, of up to 1,096,875 shares of common stock through payroll deductions. No U.S. employee is allowed to buy more than $25 of common stock in any year, based on the market value of the common stock at the beginning of the purchase period, and no U.K. employee is allowed to buy more than the lesser of £1.5 or 10% of his or her annual salary in any year. Employees purchased 34,653 shares at a weighted average price of $24.80, and 35,264 shares at a weighted average price of $19.85, under the ESPP during the twelve months ended December 28, 2013, and December 29, 2012, respectively. The Company recognized $206 and $183 of compensation expense during the twelve months ended December 28, 2013 and December 29, 2012, respectively. At December 28, 2013, 678,631 shares remained available to be issued through the ESPP and the U.K. plan.
	The Nonemployee Director Equity and Deferred Compensation Plan (the “Plan”) originally was adopted by the Board of Directors and approved by the shareholders in 2004, and amended in 2008. Under the Plan, Directors who were not officers of the Company were paid 375 shares of Company common stock and $3 in cash fees for attendance at each meeting of the Board of Directors, as well as each meeting of each Board Committee on which they served when the committee meeting was not held within one day of a meeting of the Board of Directors. Committee Chairmen received additional fees equal to 25% of normal compensation and the Chairman of the Board was paid twice the amount of normal compensation, with such additional compensation payable in Company common stock. Prior to June 7, 2011, Directors were able to elect under the Plan to receive all or part of their cash fees in Company stock and to defer receipt of their fees until a subsequent year. When so deferred, the shares of stock were converted to deferred stock units. Deferred stock units are treated as liabilities. At December 28, 2013, there were zero deferred stock units outstanding. The Plan has now been terminated, and no further issuance of shares will be made under the Plan.
	In March 2012, the Board reviewed its non-employee director compensation policy and determined that compensating Directors solely in Company stock would further align the interests of the Board and the shareholders. Accordingly, the Board of Directors adopted the Sun Hydraulics Corporation 2012 Nonemployee Director Fees Plan (the “2012 Directors Plan”), which was approved by the shareholders of the Company at its 2012 annual meeting.
	Under the 2012 Directors Plan, as compensation for attendance at each Board meeting and each meeting of each committee of the Board on which he or she serves when the committee meeting is not held within one day of a meeting of the Board, each Nonemployee Director will be paid 500 shares of Common Stock. The Chairman’s fee is twice that of a regular director, and the fee for the chairs of each Board committee is 125% that of a regular director. The Board has the authority to change from time to time, in any manner it deems desirable or appropriate, the share compensation to be awarded to all or any one or more Nonemployee Directors, provided that, with limited exceptions, such changes are subject to prior shareholder approval. The aggregate number of Shares which may be issued during any single calendar year is limited to 25,000 Shares. The 2012 Directors Plan authorizes the issuance of up to 270,000 shares of common stock. At December 28, 2013, 240,249 shares remained available for issuance under the 2012 Directors Plan.
	Directors were granted 16,500 and 17,607 shares for the twelve months ended December 28, 2013, and December 29, 2012, respectively. The Company recognized director stock compensation expense of $592 and $451 for the twelve months ended December 28, 2013, and December 29, 2012, respectively.

Earnings_Per_Share_Earnings_Pe

Earnings Per Share Earnings Per Share	12 Months Ended
	Dec. 28, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	EARNINGS PER SHARE
	The following table represents the computation of basic and diluted net income per common share (in thousands, except per share data):
		December 28, 2013		December 29, 2012		December 31, 2011
	Net income	$	37,984	$	37,398	$	37,677
	Basic weighted average number of common shares outstanding	26,206		25,944		25,642
	Basic net income per common share	$	1.45	$	1.44	$	1.47
	Effect of dilutive stock options and deferred director stock units	—		27		42
	Diluted weighted average number of common shares outstanding	26,206		25,971		25,684
	Diluted net income per common share	$	1.45	$	1.44	$	1.47

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 28, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
ACCUMULATED OTHER COMPREHENSIVE INCOME	'
	ACCUMULATED OTHER COMPREHENSIVE INCOME
	Changes in Accumulated Other Comprehensive Income by Component
	Twelve Months Ended December 28, 2013
		Unrealized				Foreign		Total
		Gains and				Currency
		Losses on				Items
		Available-for-
		Sale
		Securities
	Balance at December 29, 2012	$	(166	)		$	769	$	603
	Other comprehensive income (loss) before reclassifications	(23		)		2,010		1,987
	Amounts reclassified from accumulated other comprehensive income	1				—		1
	Net current period other comprehensive income (loss)	(22		)		2,010		1,988
	Balance at December 28, 2013	$	(188	)		$	2,779	$	2,591
	Reclassifications out of Accumulated Other Comprehensive Income
	Details about Accumulated Other		Twelve months ended December 28, 2013				Affected Line
	Comprehensive Income Components						Item in the
							Consolidated
							Statements of Operations
	Unrealized gains and losses on available-for-sale securities
	Realized gain/(loss) on sale of securities		$	60			Miscellaneous (income) expense, net
	Other than temporary impairment		(61		)		Miscellaneous (income) expense, net
			(1		)		Total before tax
			—				Tax benefit
			$	(1	)		Net of tax
	Total reclassifications for the period		$	(1	)

Segment_Reporting

Segment Reporting	12 Months Ended
	Dec. 28, 2013
Segment Reporting [Abstract]	'
SEGMENT REPORTING	'
	SEGMENT REPORTING
	Historically, the Company had four operating and reportable segments, which were based on the geographic location of its subsidiaries. In 2012, the Company re-evaluated its operating and reportable segments, resulting in a change to a single reportable segment in manufacturing, marketing, selling and distributing its products worldwide. This change was made because, increasingly, the Company is shipping products directly from the factory of origin to end-customers worldwide. Management believes the discrete financial information of the Company’s individual foreign subsidiaries is no longer representative of the business level in those locations, and management no longer makes decisions or assesses performance based on this information. Management believes the investment community will have a better understanding, with less confusion, when reviewing our results as one operating segment. The additional information related to the region to which our products are sold, as opposed to the region where the sale was recorded, is more aligned with managerial decision-making and will best inform all interested parties.
	The individual subsidiaries comprising the Company operate predominantly in a single industry as manufacturers and distributors of hydraulic components. Given the similar nature of products offered for sale, the type of customers, the methods of distribution and how the Company is managed, the Company determined that it now has only one operating and reporting segment for both internal and external reporting purposes. Prior period financial information included herein has been restated to reflect the financial position and results of operations as one segment.
	Geographic Region Information:
	Net sales are measured based on the geographic destination of sales. Total and long-lived assets are shown based on the physical location of the assets. Long-lived assets primarily include net property, plant and equipment:
		2013		2012		2011
	Net sales
	Americas	$	101,690	$	104,987	$	95,963
	Europe	61,246		59,818		64,845
	Asia/Pacific	42,331		39,562		43,363
	Total	$	205,267	$	204,367	$	204,171
	Total assets
	Americas	$	138,828	$	110,392	$	114,354
	Europe	58,388		50,054		41,178
	Asia/Pacific	16,262		14,675		11,996
	Total	$	213,478	$	175,121	$	167,528
	Long-lived assets
	Americas	$	70,479	$	60,240	$	54,188
	Europe	9,745		8,085		7,753
	Asia/Pacific	4,198		4,351		1,657
	Total	$	84,422	$	72,676	$	63,598

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 28, 2013
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	The Company is not a party to any legal proceedings other than routine litigation incidental to its business. In the opinion of management, the amount of ultimate liability with respect to these actions will not materially affect the results of operations, financial position or cash flows of the Company.
	OPERATING LEASES - The Company leases manufacturing facilities, production support facilities and office space in various locations around the world. Total rental expense for the years ended 2013, 2012 and 2011 was approximately $265, $297 and $294, respectively. The following table summarizes our minimum lease payments in excess of one year as of December 28, 2013.
	Future minimum lease payments on operating leases are as follows:
	2014	121
	2015	17
	2016	18
	2017	19
	2018	20
	Thereafter	72
	Total minimum lease payments	$	267
	INSURANCE - The Company accrues for health care benefit costs under a self-funded plan. The Company purchases re-insurance for both specific and aggregate stop losses on claims that exceed $155 on an individual basis and approximately $8,000 on an aggregate basis. The Company records a liability for all unresolved claims at the anticipated cost to the Company at the end of the period based on management’s assessment. The Company believes it has adequate reserves for all self-insurance claims.

Unaudited_Quarterly_Financial_

Unaudited Quarterly Financial Information Unaudited Quarterly Financial Information	12 Months Ended
	Dec. 28, 2013
Unaudited Quarterly Financial Information Text Block [Abstract]	'
Unaudited Quarterly Financial Information	'
	UNAUDITED QUARTERLY FINANCIAL INFORMATION
	Quarterly Results of Operations
	(In thousands, except per share data)
		For the quarter ended
		Dec 28,		Sep 28,		Jun 29,		Mar 30,
		2013		2013		2013		2013
	Net sales	$	49,050	$	49,369	$	55,788	$	51,060
	Gross profit	19,442		19,614		23,401		20,504
	Operating income	12,403		13,074		16,761		13,932
	Income before income taxes	12,707		12,794		17,516		14,154
	Net income	$	8,343	$	8,275	$	11,790	$	9,575
	Basic net income per common share	$	0.32	$	0.32	$	0.45	$	0.37
	Diluted net income per common share	$	0.32	$	0.32	$	0.45	$	0.37
		For the quarter ended
		Dec 29,		Sep 29,		Jun 30,		Mar 31,
		2012		2012		2012		2012
	Net sales	$	43,237	$	48,825	$	57,031	$	55,274
	Gross profit	15,988		19,397		22,969		22,218
	Operating income	9,486		13,195		16,464		15,264
	Income before income taxes	9,656		13,593		16,863		15,741
	Net income	$	6,693	$	8,835	$	11,247	$	10,623
	Basic net income per common share	$	0.26	$	0.34	$	0.43	$	0.41
	Diluted net income per common share	$	0.26	$	0.34	$	0.43	$	0.41

New_Accounting_Pronouncements

New Accounting Pronouncements	12 Months Ended
	Dec. 28, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
NEW ACCOUNTING PRONOUNCEMENTS	'
	NEW ACCOUNTING PRONOUNCEMENTS
	In July 2013, the FASB issued guidance on the Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. Under the guidance, an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, noting several exceptions. This guidance is effective for fiscal and interim reporting periods beginning after December 15, 2013. The Company has determined that this new guidance will not have a material impact on its consolidated financial statements.
	In February 2013, the FASB issued guidance on the Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income. The guidance requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source (e.g., the release due to cash flow hedges from interest rate contracts) and the income statement line items affected by the reclassification (e.g., interest income or interest expense). If a component is not required to be reclassified to net income in its entirety (e.g., the net periodic pension cost), companies would instead cross reference to the related footnote for additional information (e.g., the pension footnote). This guidance is effective for fiscal and interim reporting periods beginning after December 15, 2012. The Company adopted this guidance in the first quarter of 2013. There was no material impact as a result of this.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 28, 2013
Accounting Policies [Abstract]	'
Reclassification	'
	Reclassification
	Non-trade receivables classified as accounts receivable in the prior period were reclassified to other current assets to conform to the current year presentation.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 28, 2013
Accounting Policies [Abstract]	'
Computation of basic and diluted earnings per common share	'
	The following table represents the computation of basic and diluted net income per common share (in thousands, except per share data):
		December 28, 2013		December 29, 2012		December 31, 2011
	Net income	$	37,984	$	37,398	$	37,677
	Basic weighted average number of common shares outstanding	26,206		25,944		25,642
	Basic net income per common share	$	1.45	$	1.44	$	1.47
	Effect of dilutive stock options and deferred director stock units	—		27		42
	Diluted weighted average number of common shares outstanding	26,206		25,971		25,684
	Diluted net income per common share	$	1.45	$	1.44	$	1.47

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 28, 2013
Fair Value Disclosures [Abstract]	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	The following tables provide information regarding the Company’s assets and liabilities measured at fair value on a recurring basis at December 28, 2013, and December 29, 2012.
		28-Dec-13
		Adjusted Cost		Unrealized Gains			Unrealized Losses		Fair Value
	Assets
	Level 1:
	Equity securities	2,049		137			(64	)	2,122
	Mutual funds	3,865		19			(1	)	3,883
	Subtotal	5,914		156			(65	)	6,005
	Level 2:
	Corporate fixed income	25,240		126			(250	)	25,116
	Municipal bonds	2,775		1			(28	)	2,748
	Certificates of deposit and time deposits	4,014		1			—		4,015
	Asset backed securities	974		—			(129	)	845
	Subtotal	33,003		128			(407	)	32,724
	Total	38,917		284			(472	)	38,729
	Liabilities
	Level 1:
	Phantom stock units	38		—			—		38
	Total	38		—			—		38
		December 29, 2012
		Adjusted Cost		Unrealized Gains			Unrealized Losses		Fair Value
	Assets
	Level 1:
	Equity securities	602		6			(86	)	522
	Mutual funds	1,936		—			(28	)	1,908
	Subtotal	2,538		6			(114	)	2,430
	Level 2:
	Corporate fixed income	18,270		48			(105	)	18,213
	Government securities	195		14			—		209
	Municipal bonds	4,525		4			(15	)	4,514
	Certificates of deposit and time deposits	10,891		1			—		10,892
	Asset backed securities	1,447		—			(5	)	1,442
	Subtotal	35,328		67			(125	)	35,270
	Total	37,866		73			(239	)	37,700
	Liabilities
	Level 1:
	Deferred director stock units	263		—			—		263
	Phantom stock units	30		—			—		30
	Total	293		—			—		293
Summary of maturities of marketable securities	'
	Maturities of investments at December 28, 2013 are as follows:
		Adjusted Cost			Fair Value
	Due in less than one year	$	16,352		$	16,336
	Due after one year but within five years	9,753			9,625
	Due after five years but within ten years	2,336			2,345
	Due after ten years	4,562			4,418
	Equity securities	2,049			2,122
	Mutual Funds	3,865			3,883
	Total	$	38,917		$	38,729

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 28, 2013
Inventory Disclosure [Abstract]	'
Summary of inventories	'
		28-Dec-13			December 29,  2012
	Raw materials	$	6,037		$	5,564
	Work in process	4,258			3,695
	Finished goods	4,238			3,980
	Provision for slow moving inventory	(680		)	(680		)
	Total	$	13,853		$	12,559

Property_Plant_and_Equipment_T

Property, Plant, and Equipment (Tables)	12 Months Ended
	Dec. 28, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
		December 28, 2013			December 29, 2012
	Machinery and equipment	$	92,549		$	83,480
	Office furniture and equipment	7,969			11,152
	Buildings	30,771			30,255
	Leasehold and land improvements	2,644			2,785
	Land	7,490			7,464
		$	141,423		$	135,136
	Less: Accumulated depreciation	(86,484		)	(80,154		)
	Construction in progress	20,792			9,690
	Total	$	75,731		$	64,672
	Depreciation expense for the years ended December 28, 2013, December 29, 2012, and December 31, 2011 totaled $6,511, $6,514, and $6,524, respectively.

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Summary of changes in goodwill	'
	A summary of changes in goodwill at December 28. 2013 and December 29, 2012 is as follows:
	Balance, December 31, 2011	$	2,691
	Acquisitions	1,731
	Currency translation	50
	Balance, December 29, 2012	$	4,472
	Acquisitions	726
	Currency translation	23
	Balance, December 28, 2013	$	5,221
Schedule of intangible assets	'
	At December 28, 2013, and December 29, 2012, intangible assets consisted of the following:
		28-Dec-13							29-Dec-12
		Gross  carrying		Accumulated			Net carrying		Gross  carrying		Accumulated			Net carrying
		amount		amortization			amount		amount		amortization			amount
	Definite-lived intangibles:
	Trade Name	$	774	$	(184	)	$	590	$	756	$	(95	)	$	661
	Non-compete agreement	11		(4		)	7		—		—			—
	Technology	868		(130		)	738		697		(256		)	441
	Customer Relationships	1,751		(179		)	1,572		1,475		(92		)	1,383
		$	3,404	$	(497	)	$	2,907	$	2,928	$	(443	)	$	2,485
Schedule of estimated amortization expense	'
	Total estimated amortization expense for the years 2014 through 2018 is presented below.
	Year:
	2014	264
	2015	256
	2016	255
	2017	255
	2018	255
	Total	$	1,285

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 28, 2013
Business Combinations [Abstract]	'
Summary of Business Acquisition	'
	The following table summarizes the consideration paid for HCT and the amounts of the assets acquired and liabilities assumed,
	recognized at the acquisition date.
	At September 27, 2011
	Consideration
	Cash	$	1,894
	Stock	12
	Fair value of total consideration transferred	$	1,906
	Fair value of Sun's equity interest in HCT held before the business combination	1,472
	Total	$	3,378
	Acquisition-related costs (included in Selling, engineering, and administrative expenses)	40
	Recognized amounts of identifiable assets acquired and liabilities assumed
	Cash	$	130
	Accounts receivable	570
	Inventory	444
	Property, plant, and equipment	317
	Identifiable intangible assets	2,658
	Other assets	210
	Accounts payable and accrued expenses	(748		)
	Notes payable	(2,123		)
	Other liabilities	(56		)
	Total identifiable net assets	$	1,402
	Goodwill	1,976
	Total	$	3,378
Business Acquisition, Pro Forma Disclosures	'
	The revenue and earnings for HCT included in Sun’s Consolidated Statement of Operations for the year ended December 31, 2011, and the revenue and earnings of the combined entity had the acquisition date been January 2, 2011 were:
		Revenue			Earnings
	Actual from 10/02/11 to 12/31/2011	$	1,270		$	(58	)
		Revenue (unaudited)			Earnings (unaudited)
	Supplemental pro forma from 01/02/2011 to 12/31/2011	$	206,968		$	37,534

Other_Assets_Other_Assets_Tabl

Other Assets Other Assets (Tables)	12 Months Ended
	Dec. 28, 2013
Other Assets [Abstract]	'
Schedule of Other Assets	'
		28-Dec-13		29-Dec-12
	Definite-lived intangibles, net of amortization of $497 and $443	$	2,907	$	2,485
	Equity investment in WhiteOak Controls, Inc.	—		69
	Loan acquisition costs,
	net of amortization of $42 and $24	44		62
	Deposits with suppliers	129		171
	Notes receivable	337		650
	Other	53		95
	Total	$	3,470	$	3,532

Accrued_Expenses_and_Other_Lia1

Accrued Expenses and Other Liabilities (Tables)	12 Months Ended
	Dec. 28, 2013
Accrued Expenses and Other Liabilities [Abstract]	'
Schedule of Accrued Liabilities [Table Text Block]	'
		December 28, 2013		December 29, 2012
	Compensation and benefits	$	5,546	$	5,581
	Self insurance liability	703		1,007
	Other	767		1,053
	Total	$	7,016	$	7,641

LongTerm_Debt_LongTerm_Debt_Ta

Long-Term Debt Long-Term Debt (Tables)	12 Months Ended
	Dec. 28, 2013
Long-term Debt, Unclassified [Abstract]	'
Long-term Debt Covenants	'
	At December 28, 2013, the Company was in compliance with all debt covenants related to Facility A as follows:
	Covenant	Required Ratio/Amount	Actual Ratio/Amount
	Minimum Tangible Net Worth	$148,530	$	183,236
	Minimum EBITDA	Not less than $5 million	$	62,742

Dividends_to_Shareholders_Divi1

Dividends to Shareholders Dividends to Shareholders (Tables)	12 Months Ended
	Dec. 28, 2013
Equity [Abstract]	'
Schedule of Quarterly Dividends Declared	'
	Except as noted below, the Company declared the following regular quarterly dividends to shareholders of record on the last day of the respective quarter, paid on the 15th day of each month following the date of declaration:
		2013		2012		2011
	First quarter	$	0.09	$	0.09	$	0.06
	Second quarter	0.09		0.09		0.09
	Third quarter	0.09		0.09		0.09
	Fourth quarter	0.09		0.09		0.09

Income_Taxes_Income_Taxes_Tabl

Income Taxes Income Taxes (Tables)	12 Months Ended
	Dec. 28, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Income before Income Tax, Domestic and Foreign	'
	For financial reporting purposes, income before income taxes includes the following components:
		For the year ended
		December 28, 2013				December 29, 2012				December 31, 2011
	United States	$	46,314			$	44,957			$	43,513
	Foreign	10,858				10,896				14,073
	Total	$	57,172			$	55,853			$	57,586
Schedule of Components of Income Tax Provision (Benefit)	'
	The components of the income tax provision (benefit) are as follows:
		For the year ended
		December 28, 2013				December 29, 2012				December 31, 2011
	Current tax expense (benefit):
	United States	$	15,634			$	15,396			$	14,034
	State and local	950				924				436
	Foreign	2,466				1,788				3,972
	Total Current	19,050				18,108				18,442
	Deferred tax expense (benefit):
	United States	158				545				1,095
	State and local	6				12				471
	Foreign	(26		)		(210		)		(99		)
	Total Deferred	138				347				1,467
	Total income tax provision	$	19,188			$	18,455			$	19,909
Schedule of Effective Income Tax Rate Reconciliation	'
	The reconciliation between the effective income tax rate and the U.S. federal statutory rate is as follows:
		For the year ended
		28-Dec-13				29-Dec-12				31-Dec-11
	U.S. federal taxes at the statutory rate	$	20,010			$	19,549			$	20,155
	Increase (decrease)
	Foreign tax credit	(433		)		(358		)		(1,026		)
	Domestic production activity deduction	(1,632		)		(1,483		)		(1,075		)
	Research and Development Tax Credit - Current Year	(50		)		(50		)		(150		)
	Foreign income taxed at lower rate	(1,013		)		(901		)		(1,052		)
	Nondeductible items	302				411				1,049
	State and local taxes, net	957				935				907
	Change in reserve	168				710				440
	Other	879				(358		)		661
	Income tax provision	$	19,188			$	18,455			$	19,909
Schedule of Unrecognized Tax Benefits Roll Forward	'
	The following is a roll-forward of the Company’s unrecognized tax benefits:
	Unrecognized tax benefits - January 1, 2011	169
	Increases from positions taken during prior periods	440
	Lapse of statute of limitations	—
	Unrecognized tax benefits - December 31, 2011	609
	Increases from positions taken during prior periods	710
	Settled positions	(124	)
	Lapse of statute of limitations	—
	Unrecognized tax benefits - December 29, 2012	1,195
	Increases from positions taken during prior periods	168
	Settled positions	(241	)
	Lapse of statute of limitations	—
	Unrecognized tax benefits - December 28, 2013	1,122
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	'
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income taxes. The temporary differences that give rise to significant portions of the deferred tax assets and liabilities as of December 28, 2013, and December 29, 2012 are presented below:
				28-Dec-13			29-Dec-12
	Deferred tax assets:
		Current:
			Accrued expenses and other	$	474		$	248
		Total current deferred tax assets		474			248
		Noncurrent:
			Accrued expenses and other	2,414			1,426
		Total noncurrent deferred tax assets		2,414			1,426
	Deferred tax liabilities:
		Noncurrent:
			Depreciation	(8,867		)	(8,656		)
			Other	(1,294		)	—
	Total noncurrent deferred tax liabilities			(10,161		)	(8,656		)
	Net noncurrent deferred tax liability			$	(7,747	)	$	(7,230	)

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	12 Months Ended
	Dec. 28, 2013
Share-based Compensation [Abstract]	'
Summary of restricted stock activity	'
	The following table summarizes restricted stock activity for the years ended December 28, 2013, December 29, 2012, and December 31, 2011:
		Number		Weighted
		of shares		average
				grant-date
				fair value
	Nonvested balance at January 1, 2011	129		$	17.41
	Granted	88		28.41
	Vested	(63	)	16.04
	Forfeitures	—		—
	Nonvested balance at December 31, 2011	154		$	24.25
	Granted	89		25.41
	Vested	(72	)	21.95
	Forfeitures	(2	)	26.12
	Nonvested balance at December 29, 2012	169		$	25.81
	Granted	90		37.64
	Vested	(81	)	28.08
	Forfeitures	(2	)	26.5
	Nonvested balance at December 28, 2013	176		$	32.13

Earnings_Per_Share_Earnings_Pe1

Earnings Per Share Earnings Per Share (Tables)	12 Months Ended
	Dec. 28, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted	'
	The following table represents the computation of basic and diluted net income per common share (in thousands, except per share data):
		December 28, 2013		December 29, 2012		December 31, 2011
	Net income	$	37,984	$	37,398	$	37,677
	Basic weighted average number of common shares outstanding	26,206		25,944		25,642
	Basic net income per common share	$	1.45	$	1.44	$	1.47
	Effect of dilutive stock options and deferred director stock units	—		27		42
	Diluted weighted average number of common shares outstanding	26,206		25,971		25,684
	Diluted net income per common share	$	1.45	$	1.44	$	1.47

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 28, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Changes in Accumulated Other Comprehensive Income by Component	'
	Changes in Accumulated Other Comprehensive Income by Component
	Twelve Months Ended December 28, 2013
		Unrealized				Foreign		Total
		Gains and				Currency
		Losses on				Items
		Available-for-
		Sale
		Securities
	Balance at December 29, 2012	$	(166	)		$	769	$	603
	Other comprehensive income (loss) before reclassifications	(23		)		2,010		1,987
	Amounts reclassified from accumulated other comprehensive income	1				—		1
	Net current period other comprehensive income (loss)	(22		)		2,010		1,988
	Balance at December 28, 2013	$	(188	)		$	2,779	$	2,591
Summary of reclassifications out of Accumulated Other Comprehensive Income	'
	Reclassifications out of Accumulated Other Comprehensive Income
	Details about Accumulated Other		Twelve months ended December 28, 2013				Affected Line
	Comprehensive Income Components						Item in the
							Consolidated
							Statements of Operations
	Unrealized gains and losses on available-for-sale securities
	Realized gain/(loss) on sale of securities		$	60			Miscellaneous (income) expense, net
	Other than temporary impairment		(61		)		Miscellaneous (income) expense, net
			(1		)		Total before tax
			—				Tax benefit
			$	(1	)		Net of tax
	Total reclassifications for the period		$	(1	)

Segment_Reporting_Tables

Segment Reporting (Tables)	12 Months Ended
	Dec. 28, 2013
Segment Reporting [Abstract]	'
Schedule of segment information	'
	Long-lived assets primarily include net property, plant and equipment:
		2013		2012		2011
	Net sales
	Americas	$	101,690	$	104,987	$	95,963
	Europe	61,246		59,818		64,845
	Asia/Pacific	42,331		39,562		43,363
	Total	$	205,267	$	204,367	$	204,171
	Total assets
	Americas	$	138,828	$	110,392	$	114,354
	Europe	58,388		50,054		41,178
	Asia/Pacific	16,262		14,675		11,996
	Total	$	213,478	$	175,121	$	167,528
	Long-lived assets
	Americas	$	70,479	$	60,240	$	54,188
	Europe	9,745		8,085		7,753
	Asia/Pacific	4,198		4,351		1,657
	Total	$	84,422	$	72,676	$	63,598

Commitments_and_Contingencies_

Commitments and Contingencies Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 28, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Lease Payments for Operating Leases	'
	The following table summarizes our minimum lease payments in excess of one year as of December 28, 2013.
	Future minimum lease payments on operating leases are as follows:
	2014	121
	2015	17
	2016	18
	2017	19
	2018	20
	Thereafter	72
	Total minimum lease payments	$	267

Unaudited_Quarterly_Financial_1

Unaudited Quarterly Financial Information Unaudited Quarterly Financial Information (Tables)	12 Months Ended
	Dec. 28, 2013
Unaudited Quarterly Financial Information Text Block [Abstract]	'
Schedule of Unaudited Quarterly Financial Information	'
	Quarterly Results of Operations
	(In thousands, except per share data)
		For the quarter ended
		Dec 28,		Sep 28,		Jun 29,		Mar 30,
		2013		2013		2013		2013
	Net sales	$	49,050	$	49,369	$	55,788	$	51,060
	Gross profit	19,442		19,614		23,401		20,504
	Operating income	12,403		13,074		16,761		13,932
	Income before income taxes	12,707		12,794		17,516		14,154
	Net income	$	8,343	$	8,275	$	11,790	$	9,575
	Basic net income per common share	$	0.32	$	0.32	$	0.45	$	0.37
	Diluted net income per common share	$	0.32	$	0.32	$	0.45	$	0.37
		For the quarter ended
		Dec 29,		Sep 29,		Jun 30,		Mar 31,
		2012		2012		2012		2012
	Net sales	$	43,237	$	48,825	$	57,031	$	55,274
	Gross profit	15,988		19,397		22,969		22,218
	Operating income	9,486		13,195		16,464		15,264
	Income before income taxes	9,656		13,593		16,863		15,741
	Net income	$	6,693	$	8,835	$	11,247	$	10,623
	Basic net income per common share	$	0.26	$	0.34	$	0.43	$	0.41
	Diluted net income per common share	$	0.26	$	0.34	$	0.43	$	0.41

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Business (Details Textual)	Apr. 01, 2013	Mar. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Equity method investment, ownership percentage	'	40.00%
Percentage of Common Stock Purchased	60.00%	'

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended								12 Months Ended
Share data in Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Reinsurance Purchased For Stop Losses On Individual Basis	'	'	'	'	'	'	'	'	$155	'	'
Computation of basic and diluted earnings per common share	'	'	'	'	'	'	'	'	'	'	'
Net income	8,343,000	8,275,000	11,790,000	9,575,000	6,693,000	8,835,000	11,247,000	10,623,000	37,984,000	37,398,000	37,677,000
Weighted average basic shares outstanding	'	'	'	'	'	'	'	'	26,206	25,944	25,642
Basic net income per common share (in dollars per share)	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47
Effect of dilutive stock options	'	'	'	'	'	'	'	'	0	0	0
Weighted average diluted shares outstanding	'	'	'	'	'	'	'	'	26,206	25,971	25,684
Diluted net income per common share (in dollars per share)	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47
Reinsurance Purchased For Stop Losses on Aggregate Basis	'	'	'	'	'	'	'	'	$8,000	'	'
Computer Equipment [Member] | Minimum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'3 years	'	'
Computer Equipment [Member] | Maximum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'5 years	'	'
Machinery and equipment | Minimum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'4 years	'	'
Machinery and equipment | Maximum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'12 years	'	'
Furniture and Fixtures [Member] | Minimum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'4 years	'	'
Furniture and Fixtures [Member] | Maximum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'10 years	'	'
Buildings	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'40 years	'	'
Leasehold and land improvements | Minimum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'5 years	'	'
Leasehold and land improvements | Maximum [Member]	'	'	'	'	'	'	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Estimated useful life	'	'	'	'	'	'	'	'	'15 years	'	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, unless otherwise specified
Assets	'	'
Assets measured at fair value, Adjusted cost	$38,917	'
Asset measured at, fair value	38,729	'
Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	38,917	37,866
Assets measured at fair value, Unrealized gains	284	73
Assets measured at fair value, Unrealized losses	-472	-239
Asset measured at, fair value	38,729	37,700
Level 1 [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	5,914	2,538
Assets measured at fair value, Unrealized gains	156	6
Assets measured at fair value, Unrealized losses	-65	-114
Asset measured at, fair value	6,005	2,430
Liabilities	'	'
Liabilities measured at fair value, Adjusted cost	'	293
Liabilities measured at fair value, Unrealized gains	0	0
Liabilities measured at fair value, Unrealized losses	0	0
Liabilities measured at fair value	38	293
Convertible Debt, Fair Value Disclosures	38	'
Level 1 [Member] | Deferred director stock units [Member] | Recurring [Member]	'	'
Liabilities	'	'
Liabilities measured at fair value, Adjusted cost	'	263
Liabilities measured at fair value, Unrealized gains	'	0
Liabilities measured at fair value, Unrealized losses	'	0
Liabilities measured at fair value	'	263
Level 1 [Member] | Phantom stock units [Member] | Recurring [Member]	'	'
Liabilities	'	'
Liabilities measured at fair value, Adjusted cost	'	30
Liabilities measured at fair value, Unrealized gains	0	0
Liabilities measured at fair value, Unrealized losses	0	0
Liabilities measured at fair value	38	30
Convertible Debt, Fair Value Disclosures	38	'
Level 1 [Member] | Equity securities [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	2,049	602
Assets measured at fair value, Unrealized gains	137	6
Assets measured at fair value, Unrealized losses	-64	-86
Asset measured at, fair value	2,122	522
Level 1 [Member] | Mutual funds [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	3,865	1,936
Assets measured at fair value, Unrealized gains	19	0
Assets measured at fair value, Unrealized losses	-1	-28
Asset measured at, fair value	3,883	1,908
Level 2 [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	33,003	35,328
Assets measured at fair value, Unrealized gains	128	67
Assets measured at fair value, Unrealized losses	-407	-125
Asset measured at, fair value	32,724	35,270
Level 2 [Member] | Corporate fixed income [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	25,240	18,270
Assets measured at fair value, Unrealized gains	126	48
Assets measured at fair value, Unrealized losses	-250	-105
Asset measured at, fair value	25,116	18,213
Level 2 [Member] | Government securities [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	'	195
Assets measured at fair value, Unrealized gains	'	14
Assets measured at fair value, Unrealized losses	'	0
Asset measured at, fair value	'	209
Level 2 [Member] | Municipal bonds [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	2,775	4,525
Assets measured at fair value, Unrealized gains	1	4
Assets measured at fair value, Unrealized losses	-28	-15
Asset measured at, fair value	2,748	4,514
Level 2 [Member] | Certificates of deposit [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	4,014	10,891
Assets measured at fair value, Unrealized gains	1	1
Assets measured at fair value, Unrealized losses	0	0
Asset measured at, fair value	4,015	10,892
Level 2 [Member] | Asset backed securities [Member] | Recurring [Member]	'	'
Assets	'	'
Assets measured at fair value, Adjusted cost	974	1,447
Assets measured at fair value, Unrealized gains	0	0
Assets measured at fair value, Unrealized losses	-129	-5
Asset measured at, fair value	$845	$1,442

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Details 1) (USD $)	Dec. 28, 2013
In Thousands, unless otherwise specified
Summary of maturities of marketable securities	'
Due in less than one year, adjusted cost	$16,352
Due after one year but within five years, adjusted cost	9,753
Due after five years but within ten years, adjusted cost	2,336
Due after ten years, adjusted cost	4,562
Equity securities, adjusted cost	2,049
Mutual Funds, adjusted cost	3,865
Total, Adjusted Cost	38,917
Due in less than one year, fair value	16,336
Due after one year but within five years, fair value	9,625
Due after five years but within ten years, fair value	2,345
Due after ten years, fair value	4,418
Equity securities, fair value	2,122
Mutual Funds, fair value	3,883
Asset measured at, fair value	$38,729

Fair_Value_of_Financial_Instru4

Fair Value of Financial Instruments (Details Textual) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 28, 2013
Fair Value of Financial Instruments (Textual) [Abstract]	'	'
Realized loss on available for sale securities	$22,000	$1,000
Impairment Charge on available for sale securities	'	61,000
Nonrecurring [Member]	'	'
Fair Value of Financial Instruments (Textual) [Abstract]	'	'
Fair value adjustments for assets measured at fair value	'	0
Fair value adjustments for liabilities measured at fair value	'	0
Phantom stock units [Member]	'	'
Fair Value of Financial Instruments (Textual) [Abstract]	'	'
Phantom stock units, Vesting Period	'	'3 years
Deferred director stock units and phantom stock units liability [Member]	'	'
Fair Value of Financial Instruments (Textual) [Abstract]	'	'
Recognized expense related to deferred director stock units and phantom stock units liability	$20,000	$70,000

Restricted_Cash_Details

Restricted Cash (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Restricted Cash and Cash Equivalents Items [Line Items]	'	'	'	'
Restricted cash	$334	$329	'	'
Cash and cash equivalents	54,912	34,478	42,834	33,206
Estimated period of restricted cash amount	'2 months	'	'	'
Seungwon Acquisition [Member]	'	'	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'	'	'
Restricted cash	284	'	'	'
Cash and cash equivalents	'	281	'	'
United Kingdom [Member] | Customs deferment Reserves [Member]	'	'	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'	'	'
Restricted cash	50	'	'	'
Cash and cash equivalents	'	$48	'	'

Inventories_Details

Inventories (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, unless otherwise specified
Summary of inventories	'	'
Raw materials	$6,037	$5,564
Work in process	4,258	3,695
Finished goods	4,238	3,980
Provision for slow moving inventory	-680	-680
Total	$13,853	$12,559

Property_Plant_and_Equipment_D

Property, Plant, and Equipment (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	$141,423	$135,136
Less: Accumulated depreciation	-86,484	-80,154
Construction in progress	20,792	9,690
Total	75,731	64,672
Machinery and equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	92,549	83,480
Office furniture and equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	7,969	11,152
Buildings	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	30,771	30,255
Leasehold and land improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	2,644	2,785
Land	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, Plant and Equipment, Gross	$7,490	$7,464

Property_Plant_and_Equipment_D1

Property, Plant, and Equipment Depreciation Expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]	'	'	'
Depreciation	$6,511	$6,514	$6,524

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Summary of changes in goodwill	'	'
Goodwill, Beginning Balance	$4,472	$2,691
Acquisitions	726	1,731
Currency translation	23	50
Goodwill, Ending Balance	$5,221	$4,472

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Details 1) (USD $)

Dec. 28, 2013

Dec. 29, 2012

Dec. 28, 2013

Dec. 29, 2012

Dec. 28, 2013

Dec. 29, 2012

Dec. 28, 2013

Mar. 30, 2013

Dec. 29, 2012

Dec. 28, 2013

Dec. 29, 2012

Dec. 28, 2013

Trade Name

Trade Name

Noncompete Agreements [Member]

Noncompete Agreements [Member]

Non-compete agreement

Non-compete agreement

Non-compete agreement

Technology

Technology

Subsidiaries [Member]

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill, Impairment Loss

'

'

'

'

'

'

'

'

'

'

'

$0

Definite-lived intangibles:

'

'

'

'

'

'

'

'

'

'

'

'

Gross carrying amount

3,404,000

2,928,000

774,000

756,000

11,000

0

868,000

0

697,000

1,751,000

1,475,000

'

Accumulated amortization

-497,000

-443,000

-184,000

-95,000

-4,000

0

-130,000

0

-256,000

-179,000

-92,000

'

Net carrying amount

$2,907,000

$2,485,000

$590,000

$661,000

$7,000

$0

$738,000

'

$441,000

$1,572,000

$1,383,000

'

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Details 2) (USD $)	Dec. 28, 2013
In Thousands, unless otherwise specified
Schedule of estimated amortization expense	'
2014	$264
2015	256
2016	255
2017	255
2018	255
Total	$1,285

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets (Details Textual) (USD $)	12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013
Subsidiaries [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Impairment of carrying value of goodwill	$0	'
HCT [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Impairment of carrying value of goodwill	0	0
Identifiable intangible assets	2,658,000	'
Series of Individually Immaterial Business Acquisitions [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	$746,000	'

Investments_Details

Investments (Details) (USD $)	0 Months Ended
	Jan. 05, 2011
Equity Method Investments and Joint Ventures [Abstract]	'
Proceeds from Divestiture of Businesses and Interests in Affiliates	$1,451
Equity Method Investment, Realized Gain (Loss) on Disposal	$366

Acquisitions_Details_Textual

Acquisitions (Details Textual) (USD $)

12 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Thousands, unless otherwise specified

Dec. 28, 2013

Dec. 29, 2012

Dec. 31, 2011

Apr. 01, 2013

Mar. 30, 2013

Oct. 18, 2012

Dec. 28, 2013

Apr. 01, 2013

Oct. 18, 2012

Sep. 27, 2011

Dec. 28, 2013

Dec. 28, 2013

Dec. 29, 2012

Apr. 01, 2013

Dec. 28, 2013

Dec. 29, 2012

Apr. 01, 2013

Dec. 28, 2013

Dec. 29, 2012

Dec. 28, 2013

Apr. 01, 2013

Dec. 28, 2013

Dec. 28, 2013

Apr. 01, 2013

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Seungwon Solutions Corporation [Member]

HCT [Member]

HCT [Member]

Trade Name [Member]

Trade Name [Member]

Trade Name [Member]

Noncompete Agreements [Member]

Noncompete Agreements [Member]

Noncompete Agreements [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Developed Technology Rights [Member]

Developed Technology Rights [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

HCT [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of remaining interest in equity investee

'

'

'

60.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Transaction cost arising from acquisition

'

'

'

$1,000

'

$1,458

'

'

$80

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

5,221

4,472

2,691

'

'

1,731

'

726

'

1,976

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross carrying amount

3,404

2,928

'

'

'

'

'

746

'

'

'

774

756

'

11

0

'

1,751

1,475

'

'

'

'

'

Acquisition-related costs (included in Selling, engineering, and administrative expenses)

'

'

'

'

'

'

12

'

'

40

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trade name

'

'

'

'

'

'

'

'

'

'

'

'

'

18

'

'

'

'

'

'

'

'

'

'

Finite-lived intangible assets, estimated useful life

'

'

'

'

'

'

'

'

'

'

'10 years

'1 year

'

'

'2 years

'

'

'

'

'15 years

'

'20 years

'10 years

'

Customer relationships

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

276

'

'

'

Non-compete agreements

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11

'

'

'

'

'

'

'

Acquired definite lived intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

441

Gain on purchase of business

528

0

1,244

'

'

'

528

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity method investment, ownership percentage

'

'

'

'

40.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of sale of component supplier

'

'

'

'

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Identifiable intangible assets acquired

'

'

'

'

'

'

'

'

'

2,658

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of Sun's equity interest in HCT held before the business combination

'

'

'

'

'

'

'

'

'

1,472

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remeasurement gain recognized on equity interest held prior to acquisition

'

'

'

'

'

'

'

'

'

$1,244

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity interest held prior to acquisition (percent)

'

'

'

'

'

'

'

'

'

38.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisitions_Consideration_Det

Acquisitions (Consideration) (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Sep. 27, 2011
In Thousands, unless otherwise specified				HCT [Member]
Business Acquisition [Line Items]	'	'	'	'
Cash	'	'	'	$1,894
Stock	'	'	'	12
Fair value of total consideration transferred	'	'	'	1,906
Fair value of Sun's equity interest in HCT held before the business combination	'	'	'	1,472
Total	'	'	'	3,378
Acquisition-related costs (included in Selling, engineering, and administrative expenses)	'	'	'	40
Cash	'	'	'	130
Accounts receivable	'	'	'	570
Inventory	'	'	'	444
Property, plant, and equipment	'	'	'	317
Identifiable intangible assets	'	'	'	2,658
Other assets	'	'	'	210
Accounts payable and accrued expenses	'	'	'	-748
Notes payable	'	'	'	-2,123
Other liabilities	'	'	'	-56
Total identifiable net assets	'	'	'	1,402
Goodwill	5,221	4,472	2,691	1,976
Total	'	'	'	$3,378

Acquisitions_Pro_Forma_Details

Acquisitions (Pro Forma) (Details) (HCT [Member], USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2011
HCT [Member]	'	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'
Revenue since acquisition date, actual	$1,270	'
Earnings since acquisition date, actual	-58	'
Pro forma revenue (unaudited)	'	206,968
Pro forma earnings (unaudited)	'	$37,534

Other_Assets_Other_Assets_Deta

Other Assets Other Assets (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Other Assets [Abstract]	'	'	'
Finite-Lived Intangible Assets, Accumulated Amortization	$497	$443	'
Goodwill	5,221	4,472	2,691
Definite-lived intangibles net of amortization of $443 and $224	2,907	2,485	'
Equity investment in WhiteOak Controls, Inc.	0	69	'
Loan acquisition costs, net of amortization of $24 and $7	44	62	'
Deposits with suppliers	129	171	'
Notes receivable	337	650	'
Other	53	95	'
Total	3,470	3,532	'
Accumulated Amortization, Deferred Finance Costs	$42	$24	'

Accrued_Expenses_and_Other_Lia2

Accrued Expenses and Other Liabilities (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012
In Thousands, unless otherwise specified
Accrued Expenses and Other Liabilities [Abstract]	'	'
Employee-related Liabilities, Current	$5,546	$5,581
Self Insurance Reserve, Current	703	1,007
Other Accrued Liabilities, Current	767	1,053
Accrued expenses and other liabilities	$7,016	$7,641

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)

0 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Aug. 01, 2011

Jun. 30, 2012

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

CreditFacility

covenant

Facility B [Member]

Facility [Member]

Facility [Member]

Facility B [Member]

Facility B [Member]

Facility B [Member]

Facility B [Member]

Facility B [Member]

Facility [Member]

Secured Debt [Member]

Secured Debt [Member]

Base Rate [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Long-Term Debt (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective date

1-Aug-11

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of credit facilities

3

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facilities, maximum capacity

$50,000,000

'

'

$35,000,000

$15,000,000

$15,000,000

'

'

'

'

'

'

'

$15,000,000

Variable interest rate

'

'

'

'

1.45%

'

'

-0.25%

0.00%

1.45%

2.25%

'

'

'

Line of Credit Facility, Interest Rate Description

'

'

'

'P30D

'

'P30D

'

'

'

'

'

'

'

'

Debt Instrument, Restrictive Covenants

'

'

'

'

'

'92000000

'

'

'

'

'

'

'

'

Debt covenant, Minimum Tangible Net Worth

'

'

'

'

'

'5000000

'

'

'

'

'

'

'

'

Debt Covenant, Minimum Tangible Net Worth, Annual Increase by Percentage of Net Income

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

Payments on credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'Facility C requires monthly payments of interest for the first 24 months and monthly payments of principal plus accrued interest for 60 months

'

Expiration date

'

'

'

'

'

'

1-Aug-16

'

'

'

'

1-Aug-16

'

'

Required minimum EBITDA (not less than)

'

'

5,000,000

'

'

'

'

'

'

'

'

'

'

'

Number of debt covenants

'

'

2

'

'

'

'

'

'

'

'

'

'

'

Funded debt to EBITDA

'

'

3

'

'

'

3

'

'

'

'

'

'

'

EBIT to Interest Expense ratio

'

'

2.5

'

'

'

2.5

'

'

'

'

'

'

'

Line of Credit Amortization

'

$0

$0

'

'

'

'

'

'

'

'

'

'

'

Dividends_to_Shareholders_Divi2

Dividends to Shareholders Dividends to Shareholders (Details) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

In Thousands, except Per Share data, unless otherwise specified

Dec. 31, 2012

Mar. 29, 2014

Dec. 28, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 29, 2012

Sep. 29, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Oct. 01, 2011

Jul. 02, 2011

Apr. 02, 2011

Dec. 28, 2013

Dec. 29, 2012

Dec. 31, 2011

Equity [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividends Payable

'

'

$11,806

'

'

'

$38,582

'

'

'

$10,383

'

'

'

$11,806

$38,582

$10,383

Common Stock, Dividends, Per Share, Cash Paid

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.09

$0.12

$0.07

Common Stock, Dividends, Per Share, Declared

$1

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.09

$0.06

$0.45

$1.48

$0.40

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Components of Income Before Income Taxes [Abstract]	'	'	'	'	'	'	'	'	'	'	'
United States	'	'	'	'	'	'	'	'	$46,314,000	$44,957,000	$43,513,000
Foreign	'	'	'	'	'	'	'	'	10,858,000	10,896,000	14,073,000
Income before income taxes	12,707,000	12,794,000	17,516,000	14,154,000	9,656,000	13,593,000	16,863,000	15,741,000	57,172,000	55,853,000	57,586,000
Current tax expense (benefit):	'	'	'	'	'	'	'	'	'	'	'
United States	'	'	'	'	'	'	'	'	15,634,000	15,396,000	14,034,000
State and local	'	'	'	'	'	'	'	'	950,000	924,000	436,000
Foreign	'	'	'	'	'	'	'	'	2,466,000	1,788,000	3,972,000
Total Current	'	'	'	'	'	'	'	'	19,050,000	18,108,000	18,442,000
Deferred tax expense (benefit):	'	'	'	'	'	'	'	'	'	'	'
United States	'	'	'	'	'	'	'	'	158,000	545,000	1,095,000
State and local	'	'	'	'	'	'	'	'	6,000	12,000	471,000
Foreign	'	'	'	'	'	'	'	'	-26,000	-210,000	-99,000
Provision for deferred income taxes	'	'	'	'	'	'	'	'	138,000	347,000	1,467,000
Total income tax provision	'	'	'	'	'	'	'	'	19,188,000	18,455,000	19,909,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]	'	'	'	'	'	'	'	'	'	'	'
U.S. federal taxes at the statutory rate	'	'	'	'	'	'	'	'	20,010,000	19,549,000	20,155,000
Foreign tax credit	'	'	'	'	'	'	'	'	-433,000	-358,000	-1,026,000
Domestic production activity deduction	'	'	'	'	'	'	'	'	-1,632,000	-1,483,000	-1,075,000
Research and Development Tax Credit - Current Year	'	'	'	'	'	'	'	'	-50,000	-50,000	-150,000
Foreign income taxed at lower rate	'	'	'	'	'	'	'	'	-1,013,000	-901,000	-1,052,000
Nondeductible items	'	'	'	'	'	'	'	'	302,000	411,000	1,049,000
State and local taxes, net	'	'	'	'	'	'	'	'	957,000	935,000	907,000
Change in reserve	'	'	'	'	'	'	'	'	168,000	710,000	440,000
Other	'	'	'	'	'	'	'	'	879,000	-358,000	661,000
Cumulative earnings of foreign subsidiaries	'	'	'	'	62,000,000	'	'	'	'	62,000,000	'
Reconciliation of Unrecognized Tax Benefits [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Unrecognized tax benefit, beginning balance	'	'	'	1,195,000	'	'	'	609,000	1,195,000	609,000	169,000
Increases from positions taken during prior periods	'	'	'	'	'	'	'	'	168,000	710,000	440,000
Settled positions	'	'	'	'	'	'	'	'	-241,000	-124,000	'
Lapse of statute of limitations	'	'	'	'	'	'	'	'	0	0	0
Unrecognized tax benefit, ending balance	1,122,000	'	'	'	1,195,000	'	'	'	1,122,000	1,195,000	609,000
Federal returns currently under examination	'	'	'	'	'	'	'	'	'The Company’s federal returns are currently under examination by the Internal Revenue Service (IRS) in the United States for the periods 2004 through 2011	'	'
Accrued expenses and other	474,000	'	'	'	248,000	'	'	'	474,000	248,000	'
Total current deferred tax assets	474,000	'	'	'	248,000	'	'	'	474,000	248,000	'
Accrued expenses and other	2,414,000	'	'	'	1,426,000	'	'	'	2,414,000	1,426,000	'
Total noncurrent deferred tax assets	2,414,000	'	'	'	1,426,000	'	'	'	2,414,000	1,426,000	'
Depreciation	-8,867,000	'	'	'	-8,656,000	'	'	'	-8,867,000	-8,656,000	'
Other	-1,294,000	'	'	'	0	'	'	'	-1,294,000	0	'
Total noncurrent deferred tax liabilities	-10,161,000	'	'	'	-8,656,000	'	'	'	-10,161,000	-8,656,000	'
Net noncurrent deferred tax liability	($7,747,000)	'	'	'	($7,230,000)	'	'	'	($7,747,000)	($7,230,000)	'

Stock_Based_Compensation_Detai

Stock Based Compensation (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'	'
Nonvested Beginning balance Number of shares	'	169	154	129
Granted, Number of shares	90	'	89	88
Vested, Number of shares	-81	'	-72	-63
Forfeitures, Number of shares	-2	'	-2	0
Nonvested Ending balance Number of shares	176	176	169	154
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'	'
Nonvested Beginning balance, Weighted average grant-date fair value	'	$25.81	$24.25	$17.41
Granted, Weighted average grant-date fair value	'	$37.64	$25.41	$28.41
Vested, Weighted average grant-date fair value	'	$28.08	$21.95	$16.04
Forfeitures, Weighted average grant-date fair value	'	$26.50	$26.12	$0
Nonvested Ending balance, Weighted average grant-date fair value	$32.13	$32.13	$25.81	$24.25

Stock_Based_Compensation_Detai1

Stock Based Compensation (Details Textual)

3 Months Ended

6 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

12 Months Ended

Dec. 28, 2013

Jun. 30, 2012

Dec. 28, 2013

Dec. 29, 2012

Dec. 31, 2011

Sep. 29, 2012

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Jun. 30, 2012

Dec. 28, 2013

Jun. 30, 2012

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

Dec. 28, 2013

USD ($)

USD ($)

USD ($)

Director Equity Plan [Member]

Director Equity Plan [Member]

2006 Stock Option Plan [Member]

2006 Stock Option Plan [Member]

2001 Restricted Stock Plan [Member]

2001 Restricted Stock Plan [Member]

Equity Incentive Plan (2011 Plan) [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan and U.K. Plan [Member]

Nonemployee Director Equity and Deferred Compensation Plan [Member]

USD ($)

USD ($)

Awards

Maximum [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Minimum [Member]

Minimum [Member]

Minimum [Member]

USD ($)

United States [Member]

United Kingdom [Member]

USD ($)

GBP (£)

Stock Option Plans (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares available for issuance

'

'

'

'

'

'

25,000

1,125,000

'

928,125

'

'

'

'

'

'

'

'

240,249

Exercise price per share not less than fair value percent

'

'

'

'

'

'

'

110.00%

'

'

'

'

'

'

'

'

'

'

'

Exercise price per share more than voting stock

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

Stock options maximum term (in years)

'

'

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

Number of awards granted under 2006 plan

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

Minimum period before shares become non-forfeitable (in months)

'

'

'

'

'

'

'

'

'

'6 months

'

'

'

'

'

'

'

'

'

Plan Expiration year

'

'

'

'

'

'

'

'

'

'2011

'

'

'

'

'

'

'

'

'

Aggregate shares of restricted stock grant

90,000

'

'

89,000

88,000

'

'

'

'

'

'

1,000,000

'

1,096,875

'

'

'

'

'

Remaining number of shares to be issued

'

'

'

'

'

'

270,000

'

'

'

'

733,912

'

'

'

'

'

678,631

'

Restricted stock expense

'

'

'

'

'

'

'

'

'

$2,234,000

$1,695,000

'

'

'

'

'

'

'

'

Total unrecognized compensation

4,740,000

'

4,740,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized weighted average period (in years)

'1 year 7 months 10 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rate of common stock at market value

'

'

'

'

'

'

'

'

'

'

'

'

'

85.00%

'

'

'

'

'

Ratio for additional common stock shares issued, under ESPP

'

'

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares allowed to be purchased by U.S. employees and U.K. employees

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000

1,500

'

'

Allowable purchase rate of common stock based on annual salary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

Number of shares purchased by employees

'

'

'

'

'

'

'

'

'

'

'

'

35,264

34,653

'

'

'

'

'

Weighted average price

'

'

'

'

'

'

'

'

'

'

'

'

$19.85

$24.80

'

'

'

'

'

Share based Compensation Expenses

'

183,000

206,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock option granted, shares

'

'

'

'

'

17,607

16,500

'

'

'

'

'

'

'

'

'

'

'

375

Cash fees paid

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,000

Fee for the chairs of each Board committee

'

'

'

'

'

'

125.00%

'

'

'

'

'

'

'

'

'

'

'

25.00%

Deferred stock units outstanding

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock shares for each nonemployee director

'

'

'

'

'

'

500

'

'

'

'

'

'

'

'

'

'

'

'

Share based Compensation Expenses under Director's plan

'

'

'

'

'

$451,000

$592,000

'

'

'

'

'

'

'

'

'

'

'

'

Earnings_Per_Share_Earnings_Pe2

Earnings Per Share Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income	$8,343	$8,275	$11,790	$9,575	$6,693	$8,835	$11,247	$10,623	$37,984	$37,398	$37,677
Basic weighted average number of common shares outstanding	'	'	'	'	'	'	'	'	26,206	25,944	25,642
Basic net income per common share	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47
Effect of dilutive stock options and deferred director stock units	'	'	'	'	'	'	'	'	0	0	0
Diluted weighted average number of common shares outstanding	'	'	'	'	'	'	'	'	26,206	25,971	25,684
Diluted net income per common share	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47

Employee_Benefits_Details

Employee Benefits (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Defined Contribution Plan, Employer Discretionary Contribution Amount	$4,066	$4,309	$5,026
DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount	327	330	336
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	100.00%	'	'
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP	91,158	132,398	'
Defined Benefit Plan Percentage of Employer Contribution Equal to Wages	10.00%	'	'
Employee Stock Ownership Plan (ESOP), Compensation Expense	2,881	3,011	3,849
Defined Benefit Contribution Plan Foreign Operations Expenses Recognized	551	633	795
Defined Benefit Plan Compensation Expense	$70	$44	$45
United Kingdom [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Stock Issued During Period, Shares, Employee Stock Ownership Plan	7,366	13,977	'
Germany [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Stock Issued During Period, Shares, Employee Stock Ownership Plan	7,015	13,284	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Changes in AOCI (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013
Changes in Accumulated Other Comprehensive Income, by Component	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	$603
Other comprehensive income (loss) before reclassifications	1,987
Amounts reclassified from accumulated other comprehensive income	1
Net current period other comprehensive income (loss)	1,988
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	2,591
Unrealized Gains and Losses on Available-for- Sale Securities [Member]	'
Changes in Accumulated Other Comprehensive Income, by Component	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	-166
Other comprehensive income (loss) before reclassifications	-23
Amounts reclassified from accumulated other comprehensive income	1
Net current period other comprehensive income (loss)	-22
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	-188
Foreign Currency Items [Member]	'
Changes in Accumulated Other Comprehensive Income, by Component	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	769
Other comprehensive income (loss) before reclassifications	2,010
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income (loss)	2,010
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$2,779

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Details 1) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Summary of reclassifications out of Accumulated Other Comprehensive Income	'	'	'	'	'	'	'	'	'	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Total before tax	$12,707	$12,794	$17,516	$14,154	$9,656	$13,593	$16,863	$15,741	$57,172	$55,853	$57,586
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Tax benefit	'	'	'	'	'	'	'	'	-19,188	-18,455	-19,909
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Total net of tax	8,343	8,275	11,790	9,575	6,693	8,835	11,247	10,623	37,984	37,398	37,677
Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary of reclassifications out of Accumulated Other Comprehensive Income	'	'	'	'	'	'	'	'	'	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Total net of tax	'	'	'	'	'	'	'	'	-1	'	'
Unrealized gains and losses on available-for-sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary of reclassifications out of Accumulated Other Comprehensive Income	'	'	'	'	'	'	'	'	'	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Total before tax	'	'	'	'	'	'	'	'	-1	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Tax benefit	'	'	'	'	'	'	'	'	0	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Total net of tax	'	'	'	'	'	'	'	'	-1	'	'
Accumulated Other-than-Temporary Impairment [Member] | Unrealized gains and losses on available-for-sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary of reclassifications out of Accumulated Other Comprehensive Income	'	'	'	'	'	'	'	'	'	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Realized gain/(loss) on sale of securities	'	'	'	'	'	'	'	'	60	'	'
Amount Reclassified from AOCI, Unrealized gains and losses on available-for-sale securities, Other than temporary impairment	'	'	'	'	'	'	'	'	($61)	'	'

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 31, 2011
Net sales	'	'	'	'
Net sales	$205,267	$204,367	$204,171	'
Total assets	'	'	'	'
Total assets	213,478	175,121	213,478	167,528
Long-lived assets	'	'	'	'
Long-lived assets	84,422	72,676	84,422	63,598
Americas [Member]	'	'	'	'
Net sales	'	'	'	'
Net sales	101,690	104,987	95,963	'
Total assets	'	'	'	'
Total assets	138,828	110,392	138,828	114,354
Long-lived assets	'	'	'	'
Long-lived assets	70,479	60,240	70,479	54,188
EMEA [Member]	'	'	'	'
Net sales	'	'	'	'
Net sales	61,246	59,818	64,845	'
Total assets	'	'	'	'
Total assets	58,388	50,054	58,388	41,178
Long-lived assets	'	'	'	'
Long-lived assets	9,745	8,085	9,745	7,753
Asia/Pacific [Member]	'	'	'	'
Net sales	'	'	'	'
Net sales	42,331	39,562	43,363	'
Total assets	'	'	'	'
Total assets	16,262	14,675	16,262	11,996
Long-lived assets	'	'	'	'
Long-lived assets	$4,198	$4,351	$4,198	$1,657

Segment_Reporting_Details_Text

Segment Reporting (Details Textual)	12 Months Ended
	Dec. 28, 2013	Dec. 31, 2011
	Segment	Segment
Segment Reporting [Abstract]	'	'
Number of operating segments	1	4

Commitments_and_Contingencies_1

Commitments and Contingencies Total Rental Expense (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]	'	'	'
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$121	'	'
Operating Leases, Rent Expense, Net	265,000	297,000	294,000
Operating Leases, Future Minimum Payments, Due in Two Years	17	'	'
Operating Leases, Future Minimum Payments, Due in Three Years	18	'	'
Operating Leases, Future Minimum Payments, Due in Four Years	19	'	'
Operating Leases, Future Minimum Payments, Due in Five Years	20	'	'
Operating Leases, Future Minimum Payments, Due Thereafter	72	'	'
Operating Leases, Future Minimum Payments Due	$267	'	'

Commitments_and_Contingencies_2

Commitments and Contingencies Re-insurance losses on claims on individual basis (Details) (USD $)	12 Months Ended
	Dec. 28, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Reinsurance Purchased For Stop Losses On Individual Basis	$155
Reinsurance Purchased For Stop Losses on Aggregate Basis	$8,000

Unaudited_Quarterly_Financial_2

Unaudited Quarterly Financial Information (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Unaudited Quarterly Financial Information Text Block [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net sales	$49,050	$49,369	$55,788	$51,060	$43,237	$48,825	$57,031	$55,274	$205,267	$204,367	$204,171
Gross profit	19,442	19,614	23,401	20,504	15,988	19,397	22,969	22,218	82,961	80,572	79,215
Operating income	12,403	13,074	16,761	13,932	9,486	13,195	16,464	15,264	56,171	54,409	55,269
Income before income taxes	12,707	12,794	17,516	14,154	9,656	13,593	16,863	15,741	57,172	55,853	57,586
Net income	$8,343	$8,275	$11,790	$9,575	$6,693	$8,835	$11,247	$10,623	$37,984	$37,398	$37,677
Basic net income per common share	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47
Diluted net income per common share	$0.32	$0.32	$0.45	$0.37	$0.26	$0.34	$0.43	$0.41	$1.45	$1.44	$1.47