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Note 3 - Loans and Allowance for Credit Losses - Retail Credit Exposure (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Loans	$ 4,600,781	$ 4,303,758
Retail Portfolio Segment [Member]
Loans	893,477	888,459
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member]
Loans	827,597	837,406
Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Loans	65,880	51,053
Retail Portfolio Segment [Member] | Performing Financial Instruments [Member] | One to Four Family Mortgages [Member]
Loans	824,622	834,310
Retail Portfolio Segment [Member] | Performing Financial Instruments [Member] | Other Consumer Loans [Member]
Loans	65,880	51,053
Retail Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | One to Four Family Mortgages [Member]
Loans	2,975	3,096
Retail Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | Other Consumer Loans [Member]
Loans	$ 0	$ 0

X

- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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