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Related Party Transactions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]      
Related party transaction, expenses from transactions with related party $ 300 $ 300 $ 400
Rontec Ltd. [Member]      
Related Party Transaction [Line Items]      
Related party transaction, expenses from transactions with related party $ 50 $ 38 $ 49