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Note 10 - Mortgage Loans Held for Sale - Loan Origination Reserves (Details) - Collateralized Debt Obligations [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Loan origination reserves
Loan origination reserves, beginning of period	$ 2,059	$ 1,827	$ 2,013	$ 1,795
Provisions for losses during the period	56	45	102	77
Adjustments to pre-existing provisions for losses from changes in estimates	(81)	34	(81)	34
Loan origination reserves, end of period	$ 2,034	$ 1,906	$ 2,034	$ 1,906

X

- Definition

Amount of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, written down.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Footnote 7))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Definition

Amount of expense (reversal of expense) for expected credit loss on securities borrowed, from change in methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-11

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- Definition

Amount of expense (reversal of expense) for expected credit loss on securities borrowed.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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