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MARKETABLE SECURITIES
 12 Months Ended
Dec. 31, 2021
Marketable Securities [Abstract]  
MARKETABLE SECURITIES

NOTE 3: MARKETABLE SECURITIES

The following is a summary of available-for-sale marketable securities at December 31, 2021:
 
   
Amortized cost
    
Gross unrealized gains
    
Gross unrealized losses
    
Fair value
  
Available-for-sale – matures within one year:
                        
Corporate bonds
  
$
160,462
    
$
23
    
$
(320
)
  
$
160,165
  
Governmental bonds
    
7,576
      
-
      
(13
)
    
7,563
  
     
168,038
      
23
      
(333
)
    
167,728
  
Available for-sale – matures after one year:
                                
Corporate bonds
    
474,412
      
9
      
(5,580
)
    
468,841
  
Governmental bonds
    
13,506
      
-
      
(119
)
    
13,387
  
     
487,918
      
9
      
(5,699
)
    
482,228
  
Total
  
$
655,956
    
$
32
    
$
(6,032
)
  
$
649,956
  
 
The following is a summary of available-for-sale marketable securities at December 31, 2020:
 
   
Amortized cost
    
Gross unrealized gains
    
Gross unrealized losses
    
Fair value
  
Available-for-sale – matures within one year:
                        
Corporate bonds
  
$
141,824
    
$
509
    
$
(57
)
  
$
142,276
  
Governmental bonds
    
1,400
      
11
      
-
      
1,411
  
     
143,224
      
520
      
(57
)
    
143,687
  
Available for-sale – matures after one year:
                                
Corporate bonds
    
142,701
      
65
      
(214
)
    
142,552
  
Governmental bonds
    
4,895
      
-
      
(13
)
    
4,882
  
     
147,596
      
65
      
(227
)
    
147,434
  
Total
  
$
290,820
    
$
585
    
$
(284
)
  
$
291,121
  
 

Proceeds from maturity of available-for-sale marketable securities during the years ended December 31, 2021, 2020 and 2019, were $187,375, $141,839 and $120,834, respectively.

Proceeds from sales of available-for-sale marketable securities during the year ended December 31, 2021 were $14,813, which led to realized losses of $16.

The Company had no proceeds from sales of available-for sale, marketable securities during the year ended December 31, 2020, therefore no realized gains or losses from the sale of available-for-sale marketable securities were recognized.

Proceeds from sales of available-for-sale marketable securities during the year ended December 31, 2019 were $21,910, which led to realized losses of $91.