Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT AND REVOLVING CREDIT FACILITY (Details)

v2.4.1.9
LONG-TERM DEBT AND REVOLVING CREDIT FACILITY (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
Aug. 09, 2011
Aug. 09, 2011
Dec. 31, 2014
Dec. 31, 2013
Long-term debt        
Long-term Debt, Excluding Current Maturities       $ 10,000us-gaap_LongTermDebtNoncurrent
Revolving credit agreement        
Long-term debt        
Maximum borrowing capacity 25,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
25,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
25,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
 
Variable rate basis   LIBOR LIBOR LIBOR
Margin on variable rate (as a percent) 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
  1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
Annual commitment fee (as a percent) 0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
     
Long-term Debt, Excluding Current Maturities     $ 0us-gaap_LongTermDebtNoncurrent
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
$ 10,000us-gaap_LongTermDebtNoncurrent
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember