Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities - Marketable Securities (Details)

v3.23.3
Marketable Securities - Marketable Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost $ 17,706 $ 90,321
Unrealized Gain/(Loss) (1,554) (6,615)
Fair Value 16,152 83,706
Corporate Bonds    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost 6,635 40,823
Unrealized Gain/(Loss) (593) (2,579)
Fair Value 6,042 38,244
U.S. Treasury    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost 5,203 20,869
Unrealized Gain/(Loss) (389) (1,313)
Fair Value 4,814 19,556
Mortgage-Backed    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost   5,980
Unrealized Gain/(Loss)   (606)
Fair Value   5,374
U.S. Agency and Government Sponsored Securities    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost 2,000 10,781
Unrealized Gain/(Loss) (202) (1,221)
Fair Value 1,798 9,560
U.S. States and Municipalities    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost 3,868 11,801
Unrealized Gain/(Loss) (370) (895)
Fair Value $ 3,498 10,906
Asset-Backed    
Debt Securities, Available-for-Sale [Line Items]    
Adjusted Cost   67
Unrealized Gain/(Loss)   (1)
Fair Value   $ 66