Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 35
-Paragraph 54B
-URI http://asc.fasb.org/extlink&oid=117332851&loc=SL7495116-110257

Name:	us-gaap_AlternativeInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair Value of Financial Instruments - Non-Recurring Basis (Details) - USD ($)	Sep. 30, 2021	Jun. 30, 2021
Assets at fair value
Total assets at fair value	$ 0
Reserves on impaired loans	$ 0	$ 0
Non-recurring basis
Assets at fair value
Total assets at fair value		75,000
Non-recurring basis \| Other real estate owned
Assets at fair value
Total assets at fair value		75,000
Non-recurring basis \| Level 3
Assets at fair value
Total assets at fair value		75,000
Non-recurring basis \| Level 3 \| Other real estate owned
Assets at fair value
Total assets at fair value		$ 75,000