Note 6 - Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2026

	*March 31,*		*December 31,*
(dollars in thousands)	*2026*		*2025*
Banking	$	74,111	$	74,111
Retirement and benefit services		11,523		11,523
Total goodwill	$	85,634	$	85,634

Intangible Asset, Finite-Lived [Table Text Block]

	*March 31, 2026*							*December 31, 2025*
(dollars in thousands)	*Gross Carrying Amount*		*Accumulated Amortization*			*Total*		*Gross Carrying Amount*		*Accumulated Amortization*			*Total*
Identifiable customer intangibles	$	27,504	$	(22,709	)	$	4,795	$	27,504	$	(22,456	)	$	5,048
Core deposit intangible assets		41,092		(14,490	)		26,602		41,092		(12,769	)		28,323
Total intangible assets	$	68,596	$	(37,199	)	$	31,397	$	68,596	$	(35,225	)	$	33,371

- Definition

Tabular disclosure of goodwill.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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-Section 55
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482548/350-20-55-24

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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-Section 50
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1A

+ Details

ALERUS FINANCIAL CORP 10-Q