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REVENUES (Schedule of Remaining Performance Obligations) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Unsatisfied performance obligations $ 5,210 $ 11,195
2021 [Member]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Unsatisfied performance obligations 4,320  
2022 [Member]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Unsatisfied performance obligations 216  
2023 and thereafter [Member]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Unsatisfied performance obligations $ 8,129