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Commitments and Contingent Liabilities (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of minimum future rental payments
2019   177 
2020   177 
2021   119 
2022   27 
2023   27 
   $527 
Schedule of minimum future lease payments
2019   220 
2020   94 
2021   23 
   $337