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Supplementary Balance Sheet Information
 12 Months Ended
Dec. 31, 2020
Disclosure Text Block Supplement [Abstract]  
SUPPLEMENTARY BALANCE SHEET INFORMATION

NOTE 9 - SUPPLEMENTARY BALANCE SHEET INFORMATION


a.Cash, cash equivalents and short-term bank deposits:

   December 31, 
   2 0 2 0   2 0 1 9 
   U.S. dollars in thousands 
         
Cash  $4,221   $2,681 
Cash equivalents   4,039    3,798 
Total cash and cash equivalents  $8,260   $6,479 
           
Short-term bank deposits*  $7,180   $6,795 

*The average rate of short-term deposits is 1.27% and 2.42%, as of December 31, 2020 and 2019, respectively.

b.Accounts receivable - other:

   2 0 2 0   2 0 1 9 
   U.S. dollars in thousands 
         
Government institutions  $29   $213 
Employees   26    47 
Interest receivable   23    70 
Sundry   191    247 
   $269   $577 

c.Accounts payable and accruals - other:

   December 31, 
   2 0 2 0   2 0 1 9 
   U.S. dollars in thousands 
         
Payroll and related expenses  $801   $797 
Government institutions   370    415 
Accrued vacation pay   101    91 
Accrued expenses and sundry   636    515 
   $1,908   $1,818