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MARKETABLE SECURITIES: (Tables)
 6 Months Ended
Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of Marketable Securities

 

The following table sets forth the Company’s marketable securities for the indicated periods:
 
   
December 31,
    
June 30,
  
   
2021
    
2022
  
Level 2 securities:
      
U.S government and agency bonds
    
275
      
1,174
  
Other foreign government bonds
    
-
      
1,507
  
Corporate bonds*
    
1,434
      
7,165
  
Total
    
1,709
      
9,846
  
 

* Investments in Corporate bonds rated A or higher.
Summary of Changes in Fair Value of Marketable Securities

 

The table below sets forth a summary of the changes in the fair value of the Company’s marketable securities for the indicated periods:
 
   
Marketable securities
  
   
For the year ended
    
For the Six Months
  
   
December 31, 2021
    
ended June 30, 2022
  
             
Balance at beginning of the period
  
$
21,652
    
$
1,709
  
Additions
    
6,716
      
10,006
  
Sale or maturity
    
(26,784
)
    
(1,734
)
Changes in fair value during the period
    
125
      
(135
)
Balance at end of the period
  
$
1,709
     $
9,846
  
Schedule of Debt Securities

 

As of June 30, 2022, the Company’s debt securities had the following maturity dates:
 
   
Market value
  
   
June 30,
  
   
2022
  
Due within one year
    
9,041
  
Between 1-2 years
    
805