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Debt Securities, Contractual Maturity (Details)
$ in Thousands
Sep. 30, 2023
USD ($)
Securities
Dec. 31, 2022
USD ($)
Available-for-sale, amortized cost [Abstract]    
Due in one year or less $ 104,150 $ 2,133
Due after one year through five years 16,153 118,108
Due after five years through ten years 18,920 21,495
Due after ten years 162 628
Mortgage-backed securities 39,611 42,953
Amortized cost 178,996 185,317
Available-for-sale, fair value [Abstract]    
Due in one year or less 102,416 2,115
Due after one year through five years 14,875 113,415
Due after five years through ten years 15,638 19,030
Due after ten years 129 531
Mortgage-backed securities 34,080 38,074
Fair value $ 167,138 173,165
Number of holdings of securities of any issuer, other than U.S. Government, exceeding 10% of stockholders' equity | Securities 1  
Available-for-sale Securities [Member]    
Available-for-sale, amortized cost [Abstract]    
Amortized cost $ 178,996 185,317
Available-for-sale, fair value [Abstract]    
Fair value 167,138 173,165
Mortgage-Backed Securities [Member]    
Available-for-sale, amortized cost [Abstract]    
Amortized cost [1],[2] 39,611 42,953
Available-for-sale, fair value [Abstract]    
Fair value [1],[2] 34,080 38,074
U.S. Treasuries [Member]    
Available-for-sale, amortized cost [Abstract]    
Amortized cost 106,032 104,940
Available-for-sale, fair value [Abstract]    
Fair value 103,438 $ 100,660
Fair value of debt securities $ 98,350  
[1] All of our mortgage-backed securities and collateralized mortgage obligations are issued and/or guaranteed by U.S. government agencies or U.S. government-sponsored entities.
[2] Included in mortgage-backed securities is $25.37 million and $27.90 million of residential mortgage-backed securities and $14.25 million and $15.05 million of commercial mortgage-backed securities as of September 30, 2023 and December 31, 2022, respectively