Note 7 - Loans and the Allowance for Credit Losses - Aging of Modified Loans (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2026 USD ($)
Financial Asset, Not Past Due [Member]
Modified	$ 47,546
Financial Asset, 30 to 89 Days Past Due [Member]
Modified	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Modified	2,371
Commercial Portfolio Segment [Member] \| Financial Asset, Not Past Due [Member]
Modified	17,326
Commercial Portfolio Segment [Member] \| Financial Asset, 30 to 89 Days Past Due [Member]
Modified	0
Commercial Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Modified	0
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, Not Past Due [Member]
Modified	30,220
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, 30 to 89 Days Past Due [Member]
Modified	0
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Modified	$ 2,371