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BALANCES AND TRANSACTIONS WITH KEY OFFICERS AND CERTAIN SHAREHOLDERS (Schedule of Balances) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Key officers [Member]      
Disclosure of transactions between related parties [line items]      
Receivables
Other payables 477 439 468
Certain shareholder [Member]      
Disclosure of transactions between related parties [line items]      
Receivables 539 89 337
Other payables