Fair Value Measurements - Unobservable (Level 3) inputs (Details) - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Jun. 30, 2024
Foreclosed and repossessed assets | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Weighted Average Discount Applied		20.3
Foreclosed and repossessed assets | Third party appraisal | Measurement Input, Discount Rate | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied	20.40%
Foreclosed and repossessed assets | Third party appraisal | Measurement Input, Discount Rate | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied	(20.40%)
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, Type [Extensible Enumeration]	Foreclosed and repossessed assets	Foreclosed and repossessed assets
Fair Value, Nonrecurring | Third party appraisal | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Unobservable Inputs	Marketability discount
Fair Value, Nonrecurring | Third party appraisal | Measurement Input, Discount Rate | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied	13.80%	14.50%
Fair Value, Nonrecurring | Third party appraisal | Measurement Input, Discount Rate | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied	(54.80%)	52.30%
Fair Value, Nonrecurring | Foreclosed and repossessed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Unobservable Inputs	$ 736	$ 759
Fair Value Measurements Nonrecurring Weighted Average Discount Applied	20.4
Fair Value, Nonrecurring | Foreclosed and repossessed assets | Third party appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Valuation Technique	Third party appraisal	Third party appraisal
Fair Value Measurements Nonrecurring Unobservable Inputs	Marketability discount
Fair Value, Nonrecurring | Foreclosed and repossessed assets | Third party appraisal | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Unobservable Inputs		Marketability discount
Fair Value, Nonrecurring | Foreclosed and repossessed assets | Third party appraisal | Measurement Input, Discount Rate | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied		17.90%
Fair Value, Nonrecurring | Foreclosed and repossessed assets | Third party appraisal | Measurement Input, Discount Rate | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Range of discounts Applied		44.90%
Fair Value, Nonrecurring | Collateral dependent Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Unobservable Inputs	$ 11,770	$ 12,994
Fair Value Measurements Nonrecurring Weighted Average Discount Applied	33.6	43.7
Fair Value, Nonrecurring | Collateral dependent Loans | Third party appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Valuation Technique	Collateral value	Collateral value
Fair Value, Nonrecurring | Collateral dependent Loans | Third party appraisal | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements Nonrecurring Unobservable Inputs		Marketability discount