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CAPITAL LEASE OBLIGATIONS (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Net book value of leased assets $ 400 $ 700
Schedule of future minimum lease payments [Abstract]    
2018 241  
2019 78  
2020 40  
2021 28  
2022 7  
Total future minimum lease payments 394  
Less: Amounts representing interest (effective interest rate 5.61%) (22)  
Present value of minimum lease payments 372  
Current portion of capital lease obligations 228 357
Long-term portion of capital lease obligations $ 144 $ 261
Capital Lease Obligations    
Schedule of future minimum lease payments [Abstract]    
Effective interest rate 5.61%