v3.26.1
Revenue from Contract with Customer (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Deposit Account        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customer $ 956,000 $ 966,000 $ 2,879,000 $ 2,924,000
Credit and Debit Card        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customer 1,193,000 1,262,000 3,518,000 3,706,000
Asset Management        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customer 42,000 32,000 94,000 66,000
Investment Advice        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customer $ 17,000 $ 9,000 $ 53,000 $ 12,000