Note 16 - Subsequent Events	6 Months Ended
Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	Note 16 - Subsequent Events On May 5, 2023, the Bank took action to reduce overall exposure to a $4.0 million corporate debt security of a regional bank held in its available-for-sale portfolio, which had been impacted by recent market volatility. The security was carried at fair market value at the March 31, 2023 quarter end with an unrealized loss of $1,110,000. The Bank sold $2.0 million worth of the $4.0 million corporate debt security, which resulted in an after-tax loss of $912,000 that will be reflected in the June 30, 2023 financial statements. The remaining unrealized loss still held will be evaluated for other than temporary impairment as of June 30, 2023.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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