Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS (Details)

v2.4.1.9
DERIVATIVE INSTRUMENTS (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 27, 2013
Dec. 31, 2014
Derivative [Line Items]      
Fair value of the interest rate swap agreement liability 945,000us-gaap_DerivativeLiabilities    
Level 2 [Member]      
Derivative [Line Items]      
Fair value of the interest rate swap agreement liability 945,000us-gaap_DerivativeLiabilities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
   
Fair value of interest rate swaps [Member]      
Derivative [Line Items]      
Interest rate swap agreement, notional principal amount   150,000,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
 
Payments swap LIBOR floor rate 0.625%us-gaap_DerivativeFloorInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Interest rate swap, expiration date Mar. 28, 2019    
Interest rate swap, fixed rate 1.645%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Fair value of interest rate swaps [Member] | Level 2 [Member]      
Derivative [Line Items]      
Fair value of the interest rate swap agreement liability 945,000us-gaap_DerivativeLiabilities
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member