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Accrued Severance Pay, Net (Tables)
12 Months Ended
Dec. 31, 2019
Payables and Accruals [Abstract]  
Schedule of amounts funded with managers' insurance policies
   December 31, 
   2019   2018 
Accrued severance pay  $50   $208 
Less - amount funded        (98)
   $50   $110