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Related Party Balances and Transactions (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Balances and Transactions (Textual)      
Revenues aggregated total amount   $ 73 $ 31
Aggregate net amounts of lease and maintenance expenses $ 912 967 843
Reimbursement expenses 40    
Administrative and IT services amount 49 32 39
Aggregate amounts   2 15
Salary expenses 108 108 183
Affiliates amount of related party $ 288 4  
Revenues [Member]      
Related Party Balances and Transactions (Textual)      
Revenues aggregated total amount   $ 16,296 $ 24,528