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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2025
Summary of Significant Accounting Policies [Abstract]  
Adjusted Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value of Financial Assets
The following tables show the adjusted cost, gross unrealized gains, gross unrealized losses, and fair value of our securities by significant investment category as of June 30, 2025 and December 31, 2024.
 
   
June 30, 2025
 
   
Adjusted
Cost
   
Unrealized
Gains
   
Unrealized
Losses
   
Fair Value
   
Cash and
Cash
Equivalents
   
Investments
Available
for
Sale
 
Cash
 
$
3,759
   
$
   
$
   
$
3,759
   
$
3,759
   
$
 
Level 1:
                                               
Mutual funds
   
12,038
     
     
     
12,038
     
12,038
     
 
U.S. agency and treasury securities
   
15,424
     
7
     
(2
)
   
15,429
     
1,496
     
13,933
 
     
27,462
     
7
     
(2
)
   
27,467
     
13,534
     
13,933
 
Total
 
$
31,221
   
$
7
   
$
(2
)
 
$
31,226
   
$
17,293
   
$
13,933
 
   
December 31, 2024
 
   
Adjusted
Cost
   
Unrealized
Gains
   
Unrealized
Losses
   
Fair Value
   
Cash and
Cash
Equivalents
   
Investments
Available
 for
Sale
 
Cash
 
$
1,777
   
$
   
$
   
$
1,777
   
$
1,777
   
$
 
Level 1:
                                               
Mutual funds
   
20,077
     
     
     
20,077
     
20,077
     
 
U.S. agency and treasury securities
   
16,204
     
25
     
(1
)
   
16,228
     
1,442
     
14,786
 
     
36,281
     
25
     
(1
)
   
36,305
     
21,519
     
14,786
 
Total
 
$
38,058
   
$
25
   
$
(1
)
 
$
38,082
   
$
23,296
   
$
14,786