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FAIR VALUE OF ASSETS AND LIABILITIES (Level 3 Assets and Liabilities) (Details)
12 Months Ended
Dec. 31, 2022
USD ($)
bond
security
Dec. 31, 2021
USD ($)
Additional disclosures    
Transfers of financial assets (liability) into Level 3 $ 0  
Transfers of financial assets (liability) out of Level 3 0  
Mortgage revenue bonds    
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis    
Aggregate fair value / Balance at the beginning of the period 8,619,000 $ 12,326,000
Principal payments received (235,000) (2,863,000)
Unrealized net loss included in other comprehensive loss (1,116,000) (844,000)
Aggregate fair value / Balance at the end of the period $ 7,268,000 8,619,000
Additional disclosures    
Number of investment securities held | bond 2  
Mortgage revenue bonds | States and political subdivisions    
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis    
Aggregate fair value / Balance at the beginning of the period $ 7,681,000 11,337,000
Principal payments received (212,000) (2,841,000)
Unrealized net loss included in other comprehensive loss (885,000) (815,000)
Aggregate fair value / Balance at the end of the period 6,584,000 7,681,000
Mortgage revenue bonds | Residential - Non-Government Agencies    
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis    
Aggregate fair value / Balance at the beginning of the period 938,000 989,000
Principal payments received (23,000) (22,000)
Unrealized net loss included in other comprehensive loss (231,000) (29,000)
Aggregate fair value / Balance at the end of the period $ 684,000 $ 938,000
Additional disclosures    
Number of investment securities held | security 2  
Weighted-average discount rate | Mortgage revenue bonds | Weighted average    
Fair Value Of Financial Assets And Liabilities    
Debt Instrument, Measurement Input 0.0641