Organization and Summary of Significant Accounting Policies - Additional information (Details) - USD ($)	9 Months Ended
Mar. 31, 2021	Jun. 30, 2020
Organization and Summary of Significant Accounting Policies
Entity Incorporation, State or Country Code	MO
Real Estate Investments, Net	$ 1,000,000,000.0
Interest-bearing deposits in other depository institutions	199,000,000	$ 7,000,000
Deposits held in various commercial banks	$ 2,000,000	$ 319,000
Interest bearing deposits maturity period (in yeras)	7 years

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- Definition

Term of interest-bearing time deposits.

+ References

No definition available.

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- Definition

Amount of interest-bearing funds deposited into another Federal Home Loan Banks (FHLBanks).

+ References

No definition available.

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- Definition

For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=117340910&loc=d3e59706-112781

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.2)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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- References

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- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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