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Loans Receivable (Details) - Schedule of allowance for loan losses and the recorded investment in loans by portfolio - USD ($) $ in Thousands | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Loans Individually Evaluated for Impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | $ 5,123 | $ 5,226
Loans acquired with deteriorated credit quality | [1] | 375 | 400
Unpaid principal balance and recorded investment |  | 5,498 | 5,626
Ending allowance attributed to loans |  |  |
Loans Individually Evaluated for Impairment [Member] | One-to Four-Family [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 3,247 | 3,221
Loans acquired with deteriorated credit quality | [1] | 375 | 400
Unpaid principal balance and recorded investment |  | 3,622 | 3,621
Loans Individually Evaluated for Impairment [Member] | Multi-Family [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 558 | 570
Loans acquired with deteriorated credit quality | [1] |  |
Unpaid principal balance and recorded investment |  | 558 | 570
Ending allowance attributed to loans |  |  |
Loans Individually Evaluated for Impairment [Member] | Farm [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 261 | 270
Loans acquired with deteriorated credit quality | [1] |  |
Unpaid principal balance and recorded investment |  | 261 | 270
Ending allowance attributed to loans |  |  |
Loans Individually Evaluated for Impairment [Member] | Nonresidential Real Estate [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 1,057 | 1,073
Loans acquired with deteriorated credit quality | [1] |  |
Unpaid principal balance and recorded investment |  | 1,057 | 1,073
Ending allowance attributed to loans |  |  |
Loans Individually Evaluated for Impairment [Member] | Home Equity [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  |  | 87
Loans acquired with deteriorated credit quality | [1] |  |
Unpaid principal balance and recorded investment |  |  | 87
Ending allowance attributed to loans |  |  |
Loans Individually Evaluated for Impairment [Member] | Unsecured [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  |  | 5
Loans acquired with deteriorated credit quality | [1] |  |
Unpaid principal balance and recorded investment |  |  | 5
Ending allowance attributed to loans |  |  |
Loans Collectively Evaluated for Impairment [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 295,121 | 270,486
Ending allowance attributed to loans |  | 1,655 | 1,529
Loans Collectively Evaluated for Impairment [Member] | One-to Four-Family [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 228,047 | 212,811
Ending allowance attributed to loans |  | 778 | 800
Loans Collectively Evaluated for Impairment [Member] | Multi-Family [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 19,565 | 13,682
Ending allowance attributed to loans |  | 363 | 231
Loans Collectively Evaluated for Impairment [Member] | Farm [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 1,044 | 1,068
Ending allowance attributed to loans |  | 5 | 5
Loans Collectively Evaluated for Impairment [Member] | Nonresidential Real Estate [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 29,376 | 30,368
Ending allowance attributed to loans |  | 457 | 461
Loans Collectively Evaluated for Impairment [Member] | Construction [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 5,685 | 1,363
Ending allowance attributed to loans |  | 26 | 4
Loans Collectively Evaluated for Impairment [Member] | Land [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 468 | 1,062
Ending allowance attributed to loans |  | 1 | 3
Loans Collectively Evaluated for Impairment [Member] | Commercial Nonmortgage [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 1,051 |
Ending allowance attributed to loans |  | 2 |
Loans Collectively Evaluated for Impairment [Member] | Loans on Deposits [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 833 | 891
Ending allowance attributed to loans |  | 1 | 1
Loans Collectively Evaluated for Impairment [Member] | Home Equity [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 8,528 | 7,583
Ending allowance attributed to loans |  | 21 | 21
Loans Collectively Evaluated for Impairment [Member] | Automobile [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 92 | 117
Ending allowance attributed to loans |  |  |
Loans Collectively Evaluated for Impairment [Member] | Unsecured [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 432 | 535
Ending allowance attributed to loans |  | 1 | 1
Loans Collectively Evaluated for Impairment [Member] | Commercial and industrial [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  |  | 1,006
Ending allowance attributed to loans |  |  | 2
Loans Collectively Evaluated for Impairment One [Member] |  |  |
Residential real estate: |  |  |
Unpaid principal balance and recorded investment |  | 300,619 | 276,112
Ending allowance attributed to loans |  | $ 1,655 | $ 1,529
[1] | These loans were evaluated at acquisition date at their estimated fair value and there has been no subsequent deterioration since acquisition.

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- Definition Loans collectively evaluated for impairment, Unallocated Loans collectively evaluated for impair. + References No definition available. + Details
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- Definition Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality. + References No definition available. + Details
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