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Investments - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Amortized Cost    
Due in one year or less $ 5,081  
Due after one year through five years 21,261  
Due after five years through ten years 17,577  
Due after ten years 3,552  
Amortized Cost 69,140 $ 67,880
Fair Value    
Due in one year or less 5,012  
Due after one year through five years 19,485  
Due after five years through ten years 15,152  
Due after ten years 3,087  
Fair value 62,569 67,575
Residential and commercial mortgage-backed securities    
Amortized Cost    
Without single maturity date 14,645  
Amortized Cost 14,645 14,387
Fair Value    
Without single maturity date 13,272  
Fair value 13,272 14,282
Other loan-backed and structured securities    
Amortized Cost    
Without single maturity date 7,024  
Amortized Cost 7,024 7,637
Fair Value    
Without single maturity date 6,561  
Fair value $ 6,561 $ 7,601