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Other Assets Other Assets (Investments in Limited Partnerships) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Equity Method Investments      
Investment in limited partnerships $ 13,599,000 $ 9,874,000  
Aldine Capital Funds      
Schedule of Equity Method Investments      
Investment in limited partnerships 12,800,000 9,400,000  
Remaining commitment on Equity Method Investments 6,400,000    
Original Commitment to Equity Method Investments 15,000,000    
Income from Equity Method Investments 3,000,000 2,500,000 $ 520,000
Loss on Equity Method Investments 0 24,000 99,000
Dane Workforce Housing Fund LLC      
Schedule of Equity Method Investments      
Investment in limited partnerships 653,000 367,000  
Remaining commitment on Equity Method Investments 320,000    
Original Commitment to Equity Method Investments 1,000,000    
Income from Equity Method Investments 8,000 2,000  
Loss on Equity Method Investments 0 19,000 0
BankTech Ventures, LP      
Schedule of Equity Method Investments      
Investment in limited partnerships 154,000 120,000  
Remaining commitment on Equity Method Investments 780,000    
Original Commitment to Equity Method Investments 1,000,000    
Income from Equity Method Investments 0 0  
Loss on Equity Method Investments $ 21,000 $ 0 $ 0