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Loans Receivable (Details 2) - USD ($) $ in Thousands | Mar. 31, 2020 | Jun. 30, 2019
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Automobile [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | $ 67 | $ 91
Loans collectively evaluated for impairment, Ending allowance attributed to loans |  |
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance |  |
Farm [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Loans Individually evaluated | 310 | 309
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality |  |
Loans individually evaluated for impairment, Ending loans balance | 310 | 309
Loans individually evaluated for impairment, Total allowance |  |
Loans collectively evaluated for impairment, Ending loans balance | 1,917 | 2,848
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 4 | 6
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 4 | 6
Nonresidential real estate [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Loans Individually evaluated | 713 | 683
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality |  |
Loans individually evaluated for impairment, Ending loans balance | 713 | 683
Loans individually evaluated for impairment, Total allowance |  |
Loans collectively evaluated for impairment, Ending loans balance | 30,339 | 29,736
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 368 | 336
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 368 | 336
Commercial non-mortgage [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 1,199 | 2,075
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 3 | 5
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 3 | 5
Loans on deposits [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 1,287 | 1,415
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 2 | 3
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 2 | 3
Home equity [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 7,822 | 8,214
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 12 | 14
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 12 | 14
Unsecured [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 735 | 451
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 1 |
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 1 |
Unallocated [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance |  |
Loans collectively evaluated for impairment, Ending allowance attributed to loans |  |
Loans collectively evaluated for impairment, Unallocated allowance | 200 | 200
Loans collectively evaluated for impairment, Total allowance | 200 | 200
One-to four-family residential real estate [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Loans Individually evaluated | 3,894 | 3,837
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality | 768 | 949
Loans individually evaluated for impairment, Ending loans balance | 4,662 | 4,786
Loans individually evaluated for impairment, Total allowance |  |
Loans collectively evaluated for impairment, Ending loans balance | 213,146 | 210,595
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 680 | 685
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 680 | 685
Multi-family [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Loans Individually evaluated | 677 | 685
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality |  |
Loans individually evaluated for impairment, Ending loans balance | 677 | 685
Loans collectively evaluated for impairment, Ending loans balance | 11,574 | 15,928
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 169 | 200
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 169 | 200
Construction [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 4,450 | 3,757
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 7 | 6
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 7 | 6
Land [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans collectively evaluated for impairment, Ending loans balance | 1,189 | 852
Loans collectively evaluated for impairment, Ending allowance attributed to loans | 2 | 1
Loans collectively evaluated for impairment, Unallocated allowance |  |
Loans collectively evaluated for impairment, Total allowance | 2 | 1
Loans individually evaluated [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total | 5,594 | 5,515
Loans acquired with deteriorated credit quality [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total | 768 | 949
Unpaid principal balance and recorded investment [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total | 6,362 | 6,463
Loans collectively evaluated for impairment, Total | 273,725 | 275,962
Evaluated for impairment, Total | 280,087 | 282,425
Ending allowance attributed to loans [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total |  |
Loans collectively evaluated for impairment, Total | 1,248 | 1,256
Evaluated for impairment, Total | 1,248 | 1,256
Unallocated allowance [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total |  |
Loans collectively evaluated for impairment, Total | 200 | 200
Evaluated for impairment, Total | 200 | 200
Total allowance [Member] |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans individually evaluated for impairment, Total |  |
Loans collectively evaluated for impairment, Total | 1,448 | 1,456
Evaluated for impairment, Total | $ 1,448 | $ 1,456

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