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Loans (Details) - Schedule of allowance for loan losses and the recorded investment in loans by portfolio - USD ($) $ in Thousands | Jun. 30, 2021 | Jun. 30, 2020
--- | --- | ---
Residential real estate: |  |  |
Loans individually evaluated |  | $ 6,041 | $ 5,686
Loans acquired with deteriorated credit quality | [1] | 595 | 751
Ending loans balance |  | 6,636 | 6,437
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 292,888 | 280,938
Ending allowance attributed to loans |  | 1,622 | 1,288
Unallocated allowance |  |  | 200
Total allowance |  |  | 1,488
Total [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 299,524 | 287,375
Ending allowance attributed to loans |  | 1,622 | 1,288
Unallocated allowance |  |  | 200
Total allowance |  |  | 1,488
One- to four-family [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 3,738 | 3,983
Loans acquired with deteriorated credit quality | [1] | 595 | 751
Ending loans balance |  | 4,333 | 4,734
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
One- to four-family [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 219,792 | 217,755
Ending allowance attributed to loans |  | 794 | 671
Unallocated allowance |  |  |
Total allowance |  |  | 671
Multi-family [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 646 | 671
Loans acquired with deteriorated credit quality | [1] |  |
Ending loans balance |  | 646 | 671
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Multi-family [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 19,135 | 11,702
Ending allowance attributed to loans |  | 291 | 184
Unallocated allowance |  |  |
Total allowance |  |  | 184
Farm [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 274 | 309
Loans acquired with deteriorated credit quality | [1] |  |
Ending loans balance |  | 274 | 309
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Farm [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 1,960 | 2,045
Ending allowance attributed to loans |  | 5 | 4
Unallocated allowance |  |  |
Total allowance |  |  | 4
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 1,367 | 660
Loans acquired with deteriorated credit quality | [1] |  |
Ending loans balance |  | 1,367 | 660
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Nonresidential real estate [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 34,125 | 32,843
Ending allowance attributed to loans |  | 494 | 405
Unallocated allowance |  |  |
Total allowance |  |  | 405
Unsecured [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  | 16 |
Loans acquired with deteriorated credit quality | [1] |  |
Ending loans balance |  | 16 |
Ending allowance attributed to loans |  |  |
Unsecured [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 537 | 675
Ending allowance attributed to loans |  | 1 | 1
Unallocated allowance |  |  |
Total allowance |  |  | 1
Construction [Member] | Loans individually evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Loans individually evaluated |  |  | 63
Loans acquired with deteriorated credit quality | [1] |  |
Ending loans balance |  |  | 63
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Construction [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 5,433 | 3,982
Ending allowance attributed to loans |  | 12 | 6
Unallocated allowance |  |  |
Total allowance |  |  | 6
Land [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 1,308 | 765
Ending allowance attributed to loans |  | 3 | 1
Unallocated allowance |  |  |
Total allowance |  |  | 1
Commercial and industrial [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 2,259 | 2,214
Ending allowance attributed to loans |  | 5 | 3
Unallocated allowance |  |  |
Total allowance |  |  | 3
Loans on deposits [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 1,129 | 1,245
Ending allowance attributed to loans |  | 2 | 2
Unallocated allowance |  |  |
Total allowance |  |  | 2
Home equity [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 7,135 | 7,645
Ending allowance attributed to loans |  | 15 | 11
Unallocated allowance |  |  |
Total allowance |  |  | 11
Automobile [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  | 75 | 67
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  |
Total allowance |  |  |
Unallocated [Member] | Loans collectively evaluated for impairment [Member] |  |  |
Residential real estate: |  |  |
Ending loans balance |  |  |
Ending allowance attributed to loans |  |  |
Unallocated allowance |  |  | 200
Total allowance |  |  | $ 200
[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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