Quarterly report pursuant to Section 13 or 15(d)

Credit Facility (Details)

v2.4.1.9
Credit Facility (Details) (Credit Facility, USD $)
0 Months Ended
Jan. 04, 2013
Mar. 31, 2015
Credit Facility    
Maximum borrowing capacity 10,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity  
Number of payments 1wstg_LineOfCreditFacilityNumberOfPayments  
Total liabilities to tangible net worth ratio, maximum 2.50wstg_DebtInstrumentCovenantTermsTotalLiabilitiesToTangibleNetWorthRatioMaximum  
Interest coverage ratio, minimum 2.00wstg_DebtInstrumentCovenantTermsInterestCoverageRatioMinimum  
Borrowings outstanding   $ 0us-gaap_LineOfCredit
LIBOR
   
Credit Facility    
Interest rate margin (as a percent) 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember