Loans - Performance of Loans Modified (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)	$ 35,521	$ 11,180
Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)	35,521	11,180
Other income producing property | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)		342
Commercial loans | Construction and land development | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)		254
Commercial loans | Commercial non-owner occupied | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)		1,250
Commercial loans | Commercial owner-occupied real estate loan | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)	13,461	7,591
Commercial loans | Commercial and industrial | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)	19,819	1,207
Consumer loans | Consumer Owner-Occupied Loans | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Payment Status (Amortized Cost Basis)	$ 2,241	$ 536