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DEBT (Details)
$ in Thousands
9 Months Ended
Apr. 29, 2019
USD ($)
Nov. 07, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt Instruments [Abstract]          
Long-term debt, gross     $ 98,321   $ 120,000
Less: Current portion of long term debt [1]     (6,405)   (3,936)
Less: Debt origination costs     (2,533)   (2,738)
Long-term debt, noncurrent     89,383   113,326
Debt origination costs, current     600   600
Proceeds from credit agreement     $ 12,000 $ 0  
Minimum [Member]          
Debt Instruments [Abstract]          
Fixed charge coverage ratio     1.25    
Maximum [Member]          
Debt Instruments [Abstract]          
Consolidated leverage ratio     3.25    
Term Loan [Member]          
Debt Instruments [Abstract]          
Long-term debt, gross     $ 98,321   90,000
Revolving Credit Facility [Member]          
Debt Instruments [Abstract]          
Long-term debt, gross     $ 0   $ 30,000
Credit Agreement [Member]          
Debt Instruments [Abstract]          
Maturity date     Nov. 07, 2023    
Unused line fee percentage   0.35%      
Credit Agreement [Member] | LIBOR [Member]          
Debt Instruments [Abstract]          
Interest rate   4.50%      
Credit Agreement [Member] | Base Rate [Member]          
Debt Instruments [Abstract]          
Interest rate   3.50%      
Credit Agreement [Member] | Term Loan [Member]          
Debt Instruments [Abstract]          
Aggregate principal amount   $ 90,000      
Effective interest rate     8.48%    
Frequency of principal payment     Quarterly    
Credit Agreement [Member] | Term Loan [Member] | Year 1 [Member]          
Debt Instruments [Abstract]          
Periodic repayment percentage   5.00%      
Credit Agreement [Member] | Term Loan [Member] | Year 2 [Member]          
Debt Instruments [Abstract]          
Periodic repayment percentage   7.50%      
Credit Agreement [Member] | Term Loan [Member] | Year 3 [Member]          
Debt Instruments [Abstract]          
Periodic repayment percentage   7.50%      
Credit Agreement [Member] | Term Loan [Member] | Year 4 [Member]          
Debt Instruments [Abstract]          
Periodic repayment percentage   10.00%      
Credit Agreement [Member] | Term Loan [Member] | Year 5 [Member]          
Debt Instruments [Abstract]          
Periodic repayment percentage   10.00%      
Credit Agreement [Member] | Revolving Credit Facility [Member]          
Debt Instruments [Abstract]          
Maximum borrowing capacity   $ 35,000      
Effective interest rate     7.73%    
Credit Agreement [Member] | Incremental Facility [Member]          
Debt Instruments [Abstract]          
Maximum borrowing capacity   $ 30,000      
Increase Joinder [Member] | Incremental Facility [Member]          
Debt Instruments [Abstract]          
Proceeds from credit agreement $ 12,000        
[1] Current portion of long-term debt is net of debt origination costs of $0.6 million both at September 30, 2019 and December 31, 2018.