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Loans and Allowance for Loan Losses - Allowance for Loan Losses and Recorded Investment in Loans Based on Portfolio Segment and Impairment Method (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Jun. 30, 2019
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | $ 6,222 | $ 6,319 | $ 6,328 | $ 5,945 | $ 5,945
Provision charged to expense | 282 | 61 | 198 | 436 | 407
Losses charged off | (33) | (23) | (74) | (28) | (50)
Recoveries | 3 | 21 | 22 | 25 | 26
Balance, end of period | 6,474 | 6,378 | 6,474 | 6,378 | 6,328
Ending balance: individually evaluated for impairment | 0 | 23 | 0 | 23 | 23
Ending balance: collectively evaluated for impairment | 6,474 | 6,355 | 6,474 | 6,355 | 6,305
Loans: |  |  |  |  |
Ending balance | 500,682 | 498,578 | 500,682 | 498,578 | 493,753
Ending balance: individually evaluated for impairment | 1,659 | 2,054 | 1,659 | 2,054 | 1,851
Ending balance: collectively evaluated for impairment | 499,023 | 496,524 | 499,023 | 496,524 | 491,902
One- to four-family [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 991 | 1,023 | 1,031 | 997 | 997
Provision charged to expense | 74 | (13) | 44 | 12 | 29
Losses charged off | (27) |  | (40) |  | (17)
Recoveries | 0 | 21 | 3 | 22 | 22
Balance, end of period | 1,038 | 1,031 | 1,038 | 1,031 | 1,031
Ending balance: individually evaluated for impairment | 0 | 17 | 0 | 17 | 13
Ending balance: collectively evaluated for impairment | 1,038 | 1,014 | 1,038 | 1,014 | 1,018
Loans: |  |  |  |  |
Ending balance | 129,185 | 129,266 | 129,185 | 129,266 | 129,290
Ending balance: individually evaluated for impairment | 1,591 | 1,831 | 1,591 | 1,831 | 1,722
Ending balance: collectively evaluated for impairment | 127,594 | 127,435 | 127,594 | 127,435 | 127,568
Multi-family [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 1,562 | 1,668 | 1,642 | 1,650 | 1,650
Provision charged to expense | 121 |  | 41 | 18 | (8)
Losses charged off | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Balance, end of period | 1,683 | 1,668 | 1,683 | 1,668 | 1,642
Ending balance: individually evaluated for impairment | 0 |  | 0 |  |
Ending balance: collectively evaluated for impairment | 1,683 | 1,668 | 1,683 | 1,668 | 1,642
Loans: |  |  |  |  |
Ending balance | 107,107 | 106,400 | 107,107 | 106,400 | 104,663
Ending balance: individually evaluated for impairment | 0 |  | 0 |  |
Ending balance: collectively evaluated for impairment | 107,107 | 106,400 | 107,107 | 106,400 | 104,663
Home equity lines of credit [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 90 | 103 | 89 | 91 | 91
Provision charged to expense | 2 | 2 | 3 | 14 | 13
Losses charged off | 0 | (15) | 0 | (15) | (15)
Recoveries | 0 |  | 0 |  |
Balance, end of period | 92 | 90 | 92 | 90 | 89
Ending balance: individually evaluated for impairment | 0 |  | 0 |  |
Ending balance: collectively evaluated for impairment | 92 | 90 | 92 | 90 | 89
Loans: |  |  |  |  |
Ending balance | 9,131 | 9,058 | 9,131 | 9,058 | 8,938
Ending balance: individually evaluated for impairment | 16 | 23 | 16 | 23 | 22
Ending balance: collectively evaluated for impairment | 9,115 | 9,035 | 9,115 | 9,035 | 8,916
Construction [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 217 | 170 | 213 | 168 | 168
Provision charged to expense | 27 | 29 | 31 | 31 | 45
Losses charged off | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Balance, end of period | 244 | 199 | 244 | 199 | 213
Ending balance: individually evaluated for impairment | 0 |  | 0 |  |
Ending balance: collectively evaluated for impairment | 244 | 199 | 244 | 199 | 213
Loans: |  |  |  |  |
Ending balance | 20,897 | 14,521 | 20,897 | 14,521 | 16,113
Ending balance: individually evaluated for impairment | 0 |  | 0 |  |
Ending balance: collectively evaluated for impairment | 20,897 | 14,521 | 20,897 | 14,521 | 16,113
Commercial [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 1,685 | 1,804 | 1,623 | 1,604 | 1,604
Provision charged to expense | (5) | (77) | 57 | 123 | 19
Losses charged off | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Balance, end of period | 1,680 | 1,727 | 1,680 | 1,727 | 1,623
Ending balance: individually evaluated for impairment | 0 | 1 | 0 | 1 |
Ending balance: collectively evaluated for impairment | 1,680 | 1,726 | 1,680 | 1,726 | 1,623
Loans: |  |  |  |  |
Ending balance | 143,396 | 152,019 | 143,396 | 152,019 | 143,367
Ending balance: individually evaluated for impairment | 4 | 25 | 4 | 25 | 18
Ending balance: collectively evaluated for impairment | 143,392 | 151,994 | 143,392 | 151,994 | 143,349
Commercial [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 1,610 | 1,481 | 1,659 | 1,373 | 1,373
Provision charged to expense | 57 | 116 | (6) | 224 | 286
Losses charged off | 0 |  | 0 |  |
Recoveries | 0 |  | 14 |  |
Balance, end of period | 1,667 | 1,597 | 1,667 | 1,597 | 1,659
Ending balance: individually evaluated for impairment | 0 | 5 | 0 | 5 |
Ending balance: collectively evaluated for impairment | 1,667 | 1,592 | 1,667 | 1,592 | 1,659
Loans: |  |  |  |  |
Ending balance | 83,812 | 80,350 | 83,812 | 80,350 | 84,246
Ending balance: individually evaluated for impairment | 41 | 172 | 41 | 172 | 60
Ending balance: collectively evaluated for impairment | 83,771 | 80,178 | 83,771 | 80,178 | 84,186
Consumer [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of year | 67 | 70 | 71 | 62 | 62
Provision charged to expense | 6 | 4 | 28 | 14 | 23
Losses charged off | (6) | (8) | (34) | (13) | (18)
Recoveries | 3 |  | 5 | 3 | 4
Balance, end of period | 70 | 66 | 70 | 66 | 71
Ending balance: individually evaluated for impairment | 0 |  | 0 |  | 10
Ending balance: collectively evaluated for impairment | 70 | 66 | 70 | 66 | 61
Loans: |  |  |  |  |
Ending balance | 7,154 | 6,964 | 7,154 | 6,964 | 7,136
Ending balance: individually evaluated for impairment | 7 | 3 | 7 | 3 | 29
Ending balance: collectively evaluated for impairment | $ 7,147 | $ 6,961 | $ 7,147 | $ 6,961 | $ 7,107

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