v2.4.1.9

Fair Value of Financial Instruments (Details Textual) (USD $) | 12 Months Ended
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Dec. 27, 2014 | Dec. 28, 2013
Fair Value of Financial Instruments (Textual) [Abstract] |  |
Realized loss on available for sale securities | $ 182,000 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet | $ 1,000 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Impairment Charge on available for sale securities |  | 61,000 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
Nonrecurring [Member] |  |
Fair Value of Financial Instruments (Textual) [Abstract] |  |
Fair value adjustments for assets measured at fair value | 0 us-gaap_AssetsFairValueAdjustment / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember |
Fair value adjustments for liabilities measured at fair value | 0 us-gaap_LiabilitiesFairValueAdjustment / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember |
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 | $ 35,000 snhy_FairValueLiabilityRecordedForShareBasedAwardsRelatedExpense / us-gaap_IncomeStatementLocationAxis = snhy_DeferredDirectorStockUnitsAndPhantomStockUnitsLiabilityMember | $ 70,000 snhy_FairValueLiabilityRecordedForShareBasedAwardsRelatedExpense / us-gaap_IncomeStatementLocationAxis = snhy_DeferredDirectorStockUnitsAndPhantomStockUnitsLiabilityMember

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- Definition Fair value liability recorded for share based awards related expense. + References No definition available. + Details
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- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
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- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
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- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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