Quarterly report pursuant to Section 13 or 15(d)

FINANCING ARRANGEMENT (Details)

v2.4.1.9
FINANCING ARRANGEMENT (Details) (USD $)
0 Months Ended 12 Months Ended 3 Months Ended
Nov. 21, 2014
Jan. 03, 2015
Apr. 04, 2015
Term Loan Due November 21, 2019 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Term 5 years    
Term loan, amount $ 10,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= synl_TermLoanDueNovember212019Member
   
Debt Instrument, Periodic Payment, Principal 166,667us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_LongtermDebtTypeAxis
= synl_TermLoanDueNovember212019Member
   
Variable rate basis on interest rate swap   LIBOR  
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line Of Credit Facility, Increase In Maximum Borrowing Capacity 15,000,000synl_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
   
Line of Credit Facility, Maximum Borrowing Capacity $ 40,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
   
Interest Rate Swap [Member]      
Debt Instrument [Line Items]      
Variable rate basis on interest rate swap     LIBOR