Note 15 - Regulatory Capital Matters (Tables)

3 Months Ended

Mar. 31, 2026

Notes Tables

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

																		To be Well Capitalized
										Requirement For Capital								Under Prompt Corrective
		Actual								Adequacy Purposes:								Action Provisions:
		Amount				Ratio				Amount				Ratio				Amount				Ratio
March 31, 2026
Common equity tier 1 capital ratio
Consolidated		$	616,805				11.70	%		$	237,213				4.5	%			N/A				N/A
Bank			673,881				12.67	%			239,410				4.5	%		$	345,815				6.5	%
Total risk based capital ratio
Consolidated			771,371				14.63	%			421,712				8.0	%			N/A				N/A
Bank			730,447				13.73	%			425,619				8.0	%			532,023				10.0	%
Tier 1 risk based capital ratio
Consolidated			642,805				12.19	%			316,284				6.0	%			N/A				N/A
Bank			673,881				12.67	%			319,214				6.0	%			425,619				8.0	%
Tier 1 leverage ratio
Consolidated			642,805				11.21	%			229,446				4.0	%			N/A				N/A
Bank			673,881				11.73	%			229,839				4.0	%			287,299				5.0	%

December 31, 2025
Common equity tier 1 capital ratio
Consolidated		$	448,549				12.02	%		$	167,878				4.5	%			N/A				N/A
Bank			491,553				13.20	%			167,539				4.5	%		$	242,000				6.5	%
Total risk based capital ratio
Consolidated			576,703				15.46	%			298,450				8.0	%			N/A				N/A
Bank			529,707				14.23	%			297,846				8.0	%			372,308				10.0	%
Tier 1 risk based capital ratio
Consolidated			466,549				12.51	%			223,838				6.0	%			N/A				N/A
Bank			491,553				13.20	%			223,385				6.0	%			297,846				8.0	%
Tier 1 leverage ratio
Consolidated			466,549				8.92	%			209,204				4.0	%			N/A				N/A
Bank			491,553				9.42	%			208,672				4.0	%			260,840				5.0	%