Loans Receivable - Summary of Classes of Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2025		$ 102,032
2024		100,224
2023		117,337
2022		97,117
2021		54,031
Prior		258,863
Revolving		5,413
Total	$ 770,629	735,017	$ 695,498
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025		102,032
2024		100,224
2023		117,337
2022		97,117
2021		54,031
Prior		258,813
Revolving		5,413
Total		734,967
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025		0
2024		0
2023		0
2022		0
2021		0
Prior		0
Revolving		0
Total		0
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025		0
2024		0
2023		0
2022		0
2021		0
Prior		50
Revolving		0
Total		50
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025		0
2024		0
2023		0
2022		0
2021		0
Prior		0
Revolving		0
Total		0
Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025		0
2024		0
2023		0
2022		0
2021		0
Prior		0
Revolving		0
Total		0
Gross Charge-offs
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Owner Occupied Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	7,133
2024	7,105	7,403
2023	7,307	8,210
2022	8,134	5,507
2021	5,464	1,977
2020	1,961
Prior	29,258	29,738
Revolving	0	0
Total	59,229	59,968	60,850
Owner Occupied Commercial Real Estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	7,133
2024	7,105	7,403
2023	7,307	8,210
2022	8,134	5,507
2021	5,464	1,977
2020	1,961
Prior	29,258	29,738
Revolving	0	0
Total	59,229	59,968
Owner Occupied Commercial Real Estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Owner Occupied Commercial Real Estate \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Owner Occupied Commercial Real Estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Owner Occupied Commercial Real Estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Other Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025	2,839	1,379
2024	1,374	3,978
2023	3,959	3,168
2022	940	1,745
2021	1,733	10,938
2020	10,836
Prior	53,734	54,574
Revolving	0	0
Total	75,415	75,782	75,357
Other Commercial Real Estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	2,839	1,379
2024	1,374	3,978
2023	3,959	3,168
2022	940	1,745
2021	1,733	10,938
2020	10,836
Prior	53,734	54,574
Revolving	0	0
Total	75,415	75,782
Other Commercial Real Estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Other Commercial Real Estate \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Other Commercial Real Estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Other Commercial Real Estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Multi-Family
Financing Receivable, Credit Quality Indicator [Line Items]
2025	1,496	21,100
2024	28,851	29,070
2023	28,886	25,713
2022	25,569	14,135
2021	13,878	8,989
2020	8,940
Prior	79,916	81,357
Revolving	0	0
Total	205,929	180,364	171,427
Multi-Family \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	19,889	21,100
2024	28,851	29,070
2023	28,886	25,713
2022	25,569	14,135
2021	13,878	8,989
2020	8,940
Prior	79,916	81,357
Revolving	0	0
Total	205,929	180,364
Multi-Family \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Multi-Family \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Multi-Family \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Multi-Family \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	1,225
2024	1,035	4,158
2023	4,055	2,722
2022	2,682	90
2021	80	1,470
2020	1,455
Prior	2,785	2,857
Revolving	0	0
Total	12,092	12,522	12,789
Commercial and Industrial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025		1,225
2024	1,035	4,158
2023	4,055	2,722
2022	2,682	90
2021	80	1,470
2020	1,455
Prior	2,776	2,807
Revolving	0	0
Total	12,083	12,472
Commercial and Industrial \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial and Industrial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	9	50
Revolving	0	0
Total	9	50
Commercial and Industrial \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial and Industrial \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,322	69,868
2024	68,366	54,675
2023	54,238	76,714
2022	75,397	74,771
2021	71,638	30,347
2020	29,770
Prior	85,527	88,348
Revolving	0	0
Total	406,258	394,723	362,704
Residential Mortgage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	21,322	69,868
2024	68,366	54,675
2023	54,238	76,714
2022	75,397	74,771
2021	71,638	30,347
2020	29,770
Prior	85,527	88,348
Revolving	0	0
Total	406,258	394,723
Residential Mortgage \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential Mortgage \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential Mortgage \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential Mortgage \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer and Other
Financing Receivable, Credit Quality Indicator [Line Items]
2025	893	1,327
2024	1,329	940
2023	380	810
2022	798	869
2021	922	310
2020	286
Prior	1,784	1,989
Revolving	5,314	5,413
Total	11,706	11,658	$ 12,371
Consumer and Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025	893	1,327
2024	1,329	940
2023	380	810
2022	798	869
2021	922	310
2020	286
Prior	1,784	1,989
Revolving	5,314	5,413
Total	11,706	11,658
Consumer and Other \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer and Other \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer and Other \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer and Other \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
2025	0	0
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0
Prior	0	0
Revolving	0	0
Total	$ 0	$ 0

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