Loans and Allowance for Credit Losses on Loans - Non Accrual Loans and Loans Past Due 90 Days Or More and Still Accruing (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Loan portfolio past due loans
Nonaccrual	$ 26,527	$ 524
Total Loans Greater than 90 Days & Accruing	23	237
Residential real estate
Loan portfolio past due loans
Nonaccrual	201	362
Total Loans Greater than 90 Days & Accruing	21	22
Multi-family financing
Loan portfolio past due loans
Nonaccrual	21,783
Commercial and commercial real estate
Loan portfolio past due loans
Nonaccrual	4,393
Total Loans Greater than 90 Days & Accruing		149
Agricultural production and real estate
Loan portfolio past due loans
Nonaccrual	147	158
Total Loans Greater than 90 Days & Accruing		30
Consumer and margin loans
Loan portfolio past due loans
Nonaccrual	3	4
Total Loans Greater than 90 Days & Accruing	$ 2	$ 36