Income Taxes (Schedule of Reconciliation From Tax At The Statutory Rate To The Income Tax Provision) (Details)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Tax at statutory rate	21.00%	21.00%	21.00%
State tax, net	1.40%	1.50%	0.70%
Non-taxable income from bank owned life insurance contracts	2.00%	2.10%	2.10%
Non-deductible compensation	1.10%	1.20%	1.00%
Equity based compensation	0.50%	0.40%	0.20%
Employee (Associate) Stock Ownership Plan	1.40%	1.50%	1.50%
Other, net	0.10%	0.20%	0.10%
Income tax provision	20.70%	20.70%	19.40%