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FAIR VALUE MEASUREMENTS OF FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
Jun. 24, 2016
Jun. 09, 2016
Jan. 23, 2015
Oct. 29, 2016
Jul. 30, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Interest Rate Derivative Liabilities, at Fair Value       $ (3,282) $ (5,917)
Long term debt, including current portion, carrying value       173,057 173,593
Long term debt, including current portion, fair value       $ 181,463 $ 182,790
Interest Rate Swap January 23, 2015 [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Maturity Date     Aug. 03, 2022    
Derivative, Forward Interest Rate     1.795%    
Derivative, Notional Amount     $ 140,000    
Interest Rate Swap June 9, 2016 [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Maturity Date   Jun. 09, 2019      
Derivative, Forward Interest Rate   0.8725%      
Derivative, Notional Amount   $ 50,000      
Interest Rate Swap June 9, 2016 [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Maturity Date   Apr. 29, 2021      
Derivative, Forward Interest Rate   1.065%      
Derivative, Notional Amount   $ 25,000      
Interest Rate Swap June 24, 2016 [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Maturity Date Jun. 24, 2019        
Derivative, Forward Interest Rate 0.7265%        
Derivative, Notional Amount $ 50,000        
Interest Rate Swap June 24, 2016 [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Maturity Date Apr. 29, 2021        
Derivative, Forward Interest Rate 0.926%        
Derivative, Notional Amount $ 25,000