Repurchase Agreements - Outstanding Amounts and Interest Rates (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2025	Jun. 30, 2025
Repurchase Agreements
Increase in securities sold under agreements to repurchase	$ 5,000
Securities sold under agreements to repurchase	20,000	$ 15,000
Period-end balance	20,000	15,000
Average balance during the period	18,043	14,330
Maximum month-end balance during the period	$ 20,000	$ 15,000
Average interest during the period	4.39%	5.35%
Period-end interest rate	4.05%	5.11%