Annual report pursuant to Section 13 and 15(d)

Acquisitions (Textual) (Details)

v2.4.1.9
Acquisitions (Textual) (Details) (USD $)
0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Nov. 21, 2014
Jan. 03, 2015
employees
Dec. 28, 2013
Dec. 29, 2012
Aug. 09, 2013
Aug. 26, 2013
Dec. 29, 2012
employees
Aug. 21, 2012
Aug. 21, 2014
Aug. 21, 2015
Business Acquisition [Line Items]                    
Intangible asset depreciation period (years) 10 years                  
Acquisition costs   $ 12,618,787us-gaap_IncomeLossFromContinuingOperations $ 2,898,048us-gaap_IncomeLossFromContinuingOperations $ 3,982,884us-gaap_IncomeLossFromContinuingOperations            
Employees added during acquisition (employees)   30synl_BusinessCombinationEmployeesAdded                
Change in fair value of contingent consideration liability associated with the Palmer acquisition   (3,476,197)synl_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseInFairValueOfContingentConsiderationLiability                
Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Purchase Price 31,490,433us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Contingent consideration payment, upper limit 5,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Contingent consideration earn-out period (years) 2 years 2 years                
Revenue threshold for earn-out 27,000,000synl_BusinessAcquisitionContingentConsiderationRevenueThresholdLowerRangeforEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Earn-out percentage threshold 2,000,000synl_BusinessAcquisitionContingentConsiderationEarnOutPercentageThreshold
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Earn-out multiplier threshold 2,500,000synl_BusinessAcquisitionContingentConsiderationEarnOutMultiplierThreshold
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Single earn-out limit 2,500,000synl_BusinessCombinationContingentConsiderationArrangementsRangeofOutcomesForSinglePaymentValueHigh
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Cumulative revenue threshold for earn-out 58,000,000synl_BusinessAcquisitionContingentConsiderationCumulativeRevenueThresholdLowerRangeforEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Cumulative revenue threshold for earn-our calculation 54,000,000synl_BusinessAcquisitionContingentConsiderationCumulativeRevenueThresholdLowerRangeforEarnOutPaymentCalculation
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Cumulative earn-out percentage threshold 4,000,000synl_BusinessAcquisitionContingentConsiderationCumulativeEarnOutPercentageThreshold
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Cumulative earn-out multiplier threshold 5,000,000synl_BusinessAcquisitionContingentConsiderationCumulativeEarnOutMultiplierThreshold
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Estimated earn out payments, discounted 4,774,000synl_BusinessAcquisitionContingentConsiderationEstimatedEarnOutPaymentsDiscounted
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Intangible assets 11,457,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
                 
Revenues   2,524,000us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
               
Income before income taxes   493,000us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
               
CRI Facility [Member]                    
Business Acquisition [Line Items]                    
Purchase Price         3,450,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= synl_CRIFacilityMember
         
Revenues     1,824,000us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_CRIFacilityMember
             
Income before income taxes     144,000us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_CRIFacilityMember
             
CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Purchase Price           1,100,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
       
Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Purchase Price               25,575,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Contingent consideration payment, upper limit               10,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Contingent consideration earn-out period (years)   3 years           3 years    
Estimated earn out payments, discounted               8,152,000synl_BusinessAcquisitionContingentConsiderationEstimatedEarnOutPaymentsDiscounted
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Intangible assets               9,000,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Intangible asset depreciation period (years)               15 years    
Revenues       12,619,000us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
           
Income before income taxes       977,000us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
           
Employees added during acquisition (employees)             130synl_BusinessCombinationEmployeesAdded
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
     
Revised acquisition purchase price               26,951,209synl_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceRevised
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Period of maintenance capital expenditures subsequent to acquisition (months)               18 months    
Contingent consideration payment, lower limit               2,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Claw back period (years)               2 years    
Contingency liability               1,200,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Indemnification assets     336,000us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
        1,200,000us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
EBITDA threshold, lower range for earn out payment               5,825,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdLowerRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
EBITDA threshold, upper range for earn out payment               6,825,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdUpperRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Earn out payment, above EBITDA upper range               3,500,000synl_BusinessAcquisitionContingentConsiderationEarnOutPaymentForEbitdaAboveUpperRange
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
EBITDA threshold, lower range for three year earn out payment               17,475,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdThreeYearLowerRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
EBITDA threshold, upper range for three year earn out payment               20,475,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdThreeYearUpperRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Earn out payment, between lower and upper EBITDA three year ranges               7,500,000synl_BusinessAcquisitionContingentConsiderationThreeYearEarnOutPaymentEbitdaBetweenLowerAndUpperThreeYearRanges
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Maximum three year earn out payment               10,500,000synl_BusinessAcquisitionContingentConsiderationMaximumThreeYearEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Estimated earn out payments               8,500,000synl_BusinessAcquisitionContingentConsiderationEstimatedEarnOutPayments
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
   
Earn-out liability balance     6,000,000synl_BusinessAcquisitionContingentConsiderationEarnOutLiability
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
             
Year 1 [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Contingency liability     2,500,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_ContingentConsiderationByTypeAxis
= synl_Year1Member
             
Year 2 [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Contingent consideration payment, lower limit                 2,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_ContingentConsiderationByTypeAxis
= synl_Year2Member
 
EBITDA threshold, lower range for three year earn out payment                 5,825,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdThreeYearLowerRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_ContingentConsiderationByTypeAxis
= synl_Year2Member
 
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]                    
Business Acquisition [Line Items]                    
Change in fair value of contingent consideration liability associated with the Palmer acquisition   (3,476,000)synl_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIncreaseDecreaseInFairValueOfContingentConsiderationLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
               
Scenario, Forecast [Member] | Year 3 [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
EBITDA threshold, upper range for earn out payment                   6,825,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdUpperRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_ContingentConsiderationByTypeAxis
= synl_Year3Member
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
EBITDA threshold, lower range for three year earn out payment                   5,825,000synl_BusinessAcquisitionContingentConsiderationEbitdaThresholdThreeYearLowerRangeForEarnOutPayment
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_ContingentConsiderationByTypeAxis
= synl_Year3Member
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
Contingent Consideration [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Estimated earn out payments, discount rate 3.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_FairValueByLiabilityClassAxis
= synl_ContingentConsiderationMember
                 
Contingent Consideration [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Estimated earn out payments, discount rate               2.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_FairValueByLiabilityClassAxis
= synl_ContingentConsiderationMember
   
Acquisition-related Costs [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs   302,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_AcquisitionRelatedCostsMember
               
Acquisition-related Costs [Member] | CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs     255,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_AcquisitionRelatedCostsMember
             
Acquisition-related Costs [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       881,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_AcquisitionRelatedCostsMember
           
Professional Audit Fees [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs   92,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_NonrecurringAdjustmentAxis
= synl_ProfessionalAuditFeesMember
               
Professional Audit Fees [Member] | CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs     113,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_ProfessionalAuditFeesMember
             
Professional Audit Fees [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       355,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_ProfessionalAuditFeesMember
           
Bank and Swap Agreement Fees [Member] | CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs     70,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_BankAndSwapAgreementFeesMember
             
Bank and Swap Agreement Fees [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       337,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_BankAndSwapAgreementFeesMember
           
Legal Fees [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs   83,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_NonrecurringAdjustmentAxis
= synl_LegalFeesMember
               
Legal Fees [Member] | CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs     53,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_LegalFeesMember
             
Legal Fees [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       93,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_LegalFeesMember
           
Consultant Fees [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs   65,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_NonrecurringAdjustmentAxis
= synl_ConsultantFeesMember
               
Travel Costs [Member] | Specialty Pipe And Tube, Inc. [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs   62,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_SpecialtyPipeAndTubeInc.Member
/ us-gaap_NonrecurringAdjustmentAxis
= synl_TravelCostsMember
               
Travel Costs [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       25,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= synl_TravelCostsMember
           
Other Expense [Member] | CRI Tolling [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs     19,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_CRITollingMember
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_OtherExpenseMember
             
Other Expense [Member] | Palmer of Texas [Member]                    
Business Acquisition [Line Items]                    
Acquisition costs       $ 71,000us-gaap_IncomeLossFromContinuingOperations
/ us-gaap_BusinessAcquisitionAxis
= synl_PalmerOfTexasMember
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_OtherExpenseMember