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Acquisitions - Additional information (Details) - USD ($) |  |  | 1 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 22, 2020 | Nov. 21, 2018 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Noninterest expense |  |  |  |  | $ 54,452,000 | $ 47,892,000 | $ 42,973,000
Goodwill |  |  | $ 14,089,000 | $ 14,089,000 | 14,089,000 | 14,089,000 |
Bargain purchase gain |  |  |  |  | $ 123,000 |  |
Core Deposit Intangible Assets Amortization Period |  |  |  |  | five to seven years |  |
Central Federal Bancshares |  |  |  |  |  |  |
Value of all cash transaction | $ 21,900,000 |  |  |  |  |  |
Cash consideration | 9,100,000 |  |  |  |  |  |
Acquisition related costs |  |  | 1,200,000 |  |  |  |
Noninterest expense |  |  | 1,200,000 |  |  |  |
Finite-Lived Core Deposits, Gross |  |  | 540,000 |  | $ 540,000 |  |
Goodwill |  |  | $ 0 |  | $ 0 |  |
Bargain purchase gain | 123,000 |  |  |  |  |  |
Core Deposit Intangible Assets Amortization Period |  |  |  |  | P6Y |  |
Diversified portfolio, loans | 52,100,000 |  |  |  |  |  |
Fair value of portfolio | $ 662,000 |  |  |  |  |  |
Gideon Bancshares Company and First Commercial Bank |  |  |  |  |  |  |
Acquisition related costs |  |  |  |  | $ 871,000 |  |
Noninterest expense |  |  |  |  | $ 14,000 | $ 783,000 | $ 75,000
Gideon Bancshares Company |  |  |  |  |  |  |
Cash portion for each share converted upon completion of merger |  | $ 72.48 |  |  |  |  |
Number of shares issued upon the completion of merger |  | 2.04 |  |  |  |  |
Number of shares issued |  | 317,225 |  |  |  |  |
Cash consideration |  | $ 11,300,000 |  |  |  |  |
Goodwill |  | $ 1,000,000.0 |  |  |  |  |
Core Deposit Intangible Assets Amortization Period |  | P7Y |  |  |  |  |
Diversified portfolio, loans |  | $ 154,000,000.0 |  |  |  |  |
Fair value of portfolio |  | 9,700,000 |  |  |  |  |
Losses charged off |  | $ 25,500,000 |  |  |  |  |
Revenue from acquired business |  |  |  | 4,100,000 |  |  |
Earnings from acquired business |  |  |  | $ 565,000 |  |  |

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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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- Definition Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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