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LEASED ASSETS (Schedule of right-of-use assets and related lease liabilities) (Details) - USD ($)
$ in Thousands
Mar. 30, 2019
Dec. 31, 2018
Operating lease liabilities    
Noncurrent portion $ 2,144
Total operating lease liabilities $ 2,728  
Weighted average remaining lease term of operating leases 11 years 10 months 6 days  
Other Assets [Member]    
Operating Leased Assets [Line Items]    
Right-of-use assets $ 2,728  
Trade accounts payable and accrued expenses [Member]    
Operating lease liabilities    
Current portion 584  
Lease liabilities [Member]    
Operating lease liabilities    
Noncurrent portion $ 2,144