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Basis of Financial Statement Presentation - Additional Information (Detail) - USD ($) | Jul. 07, 2011 | Mar. 31, 2020 | Jun. 30, 2019
--- | --- | --- | ---
Organization and Basis of Presentation [Line Items] |  |  |
Common stock, shares issued |  | 3,240,376 | 3,578,252
IPO [Member] |  |  |
Organization and Basis of Presentation [Line Items] |  |  |
Common stock, shares issued | 4,496,500 |  |
Sale of stock price per share | $ 10.00 |  |
Proceeds from sale of common stock | $ 45,000,000 |  |
Employee Stock Ownership Plan Esop [Member] | IPO [Member] |  |  |
Organization and Basis of Presentation [Line Items] |  |  |
Common stock, shares issued | 384,900 |  |
Iroquois Federal Foundation [Member] |  |  |
Organization and Basis of Presentation [Line Items] |  |  |
Number of donated shares of common stock | 314,755 |  |
Cash contributed to the foundation | $ 450,000 |  |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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