v3.26.1
FAIR VALUE OF FINANCIAL INSTRUMENTS - Balance Sheet Grouping (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Financial assets    
Debt securities held to maturity $ 23,273 $ 25,653
Level 1    
Financial assets    
Cash and cash equivalents 149,412 120,568
Debt securities available for sale 0 0
Debt securities held to maturity 0 0
Common equities and mutual funds 4,808 3,787
Non-marketable equity securities 0 0
Loans held for sale 0 0
Loans and leases 0 0
Federal Reserve Bank and Federal Home Loan Bank stocks 0 0
Accrued interest receivable 36,966 38,520
Financial liabilities    
Deposits 5,947,668 5,884,311
Overnight federal funds purchased 167,500 9,000
Other short- and long-term borrowings 0 0
Accrued interest payable 712 188
Level 2    
Financial assets    
Cash and cash equivalents 0 0
Debt securities available for sale 1,219,616 1,327,843
Debt securities held to maturity 23,273 25,653
Common equities and mutual funds 0 0
Non-marketable equity securities 10,296 6,699
Loans held for sale 97,288 179,421
Loans and leases 0 0
Federal Reserve Bank and Federal Home Loan Bank stocks 30,915 24,708
Accrued interest receivable 0 0
Financial liabilities    
Deposits 2,556 2,604
Overnight federal funds purchased 0 0
Other short- and long-term borrowings 34,023 33,667
Accrued interest payable 0 0
Level 3    
Financial assets    
Cash and cash equivalents 0 0
Debt securities available for sale 0 0
Debt securities held to maturity 0 0
Common equities and mutual funds 0 0
Non-marketable equity securities 0 0
Loans held for sale 0 0
Loans and leases 5,023,814 4,599,269
Federal Reserve Bank and Federal Home Loan Bank stocks 0 0
Accrued interest receivable 0 0
Financial liabilities    
Deposits 0 0
Overnight federal funds purchased 0 0
Other short- and long-term borrowings 0 0
Accrued interest payable 0 0
Carrying Amount    
Financial assets    
Cash and cash equivalents 149,412 120,568
Debt securities available for sale 1,219,616 1,327,843
Debt securities held to maturity 27,101 29,308
Common equities and mutual funds 4,808 3,787
Non-marketable equity securities 23,752 19,937
Loans held for sale 97,288 179,421
Loans and leases 5,104,580 4,665,006
Federal Reserve Bank and Federal Home Loan Bank stocks 30,915 24,708
Accrued interest receivable 36,966 38,520
Financial liabilities    
Deposits 5,950,309 5,886,947
Overnight federal funds purchased 167,500 9,000
Other short- and long-term borrowings 33,533 33,456
Accrued interest payable 712 188
Estimated Fair Value    
Financial assets    
Cash and cash equivalents 149,412 120,568
Debt securities available for sale 1,219,616 1,327,843
Debt securities held to maturity 23,273 25,653
Common equities and mutual funds 4,808 3,787
Non-marketable equity securities 23,752 19,937
Loans held for sale 97,288 179,421
Loans and leases 5,023,814 4,599,269
Federal Reserve Bank and Federal Home Loan Bank stocks 30,915 24,708
Accrued interest receivable 36,966 38,520
Financial liabilities    
Deposits 5,950,224 5,886,914
Overnight federal funds purchased 167,500 9,000
Other short- and long-term borrowings 34,023 33,667
Accrued interest payable $ 712 $ 188