Note 20 - Capital Ratios and Regulatory Minimum Requirements (Details) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Consolidated Entities [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 162,725	$ 151,501
Tier 1 capital	152,077	140,226
Common equity tier 1 capital	152,077	140,226
Tier 1 leverage capital	$ 152,077	$ 140,226
Capital to risk-weighted assets	0.1319	0.1360
Tier 1 capital to risk-weighted assets	0.1233	0.1259
Common equity tier 1 capital to risk-weighted assets	12.33%	12.59%
Tier 1 leverage capital to average assets	0.0875	0.0839
Capital required for capital adequacy	$ 98,701	$ 89,111
Tier 1 capital required for capital adequacy	74,025	66,833
Common equity tier 1 capital required for capital adequacy	55,519	50,125
Tier 1 leverage capital required for capital adequacy	$ 69,507	$ 66,890
Capital required for capital adequacy to risk-weighted assets	0.0800	0.0800
Tier 1 capital required for capital adequacy to risk-weighted assets	0.0600	0.0600
Common equity tier 1 capital required for capital adequacy to risk-weighted assets	4.50%	4.50%
Tier 1 leverage capital required for capital adequacy to average assets	0.0400	0.0400
Capital required to be well capitalized	$ 123,376	$ 111,389
Tier 1 capital required to be well capitalized	$ 74,025	$ 66,833
Capital required to be well capitalized to risk-weighted assets	0.1000	0.1000
Tier 1 capital required to be well capitalized to risk-weighted assets	0.0600	0.0600
Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 149,908	$ 138,419
Tier 1 capital	139,260	127,144
Common equity tier 1 capital	139,260	127,144
Tier 1 leverage capital	$ 139,260	$ 127,144
Capital to risk-weighted assets	0.1252	0.1285
Tier 1 capital to risk-weighted assets	0.1163	0.1181
Common equity tier 1 capital to risk-weighted assets	11.63%	11.81%
Tier 1 leverage capital to average assets	0.0807	0.0767
Capital required for capital adequacy	$ 95,796	$ 86,162
Tier 1 capital required for capital adequacy	71,847	64,621
Common equity tier 1 capital required for capital adequacy	53,886	48,466
Tier 1 leverage capital required for capital adequacy	$ 69,009	$ 66,295
Capital required for capital adequacy to risk-weighted assets	0.0800	0.0800
Tier 1 capital required for capital adequacy to risk-weighted assets	0.0600	0.0600
Common equity tier 1 capital required for capital adequacy to risk-weighted assets	4.50%	4.50%
Tier 1 leverage capital required for capital adequacy to average assets	0.0400	0.0400
Capital required to be well capitalized	$ 119,746	$ 107,702
Tier 1 capital required to be well capitalized	95,796	86,162
Common equity tier 1 capital required to be well capitalized	77,835	70,006
Tier 1 leverage capital required to be well capitalized	$ 86,261	$ 82,868
Capital required to be well capitalized to risk-weighted assets	0.1000	0.1000
Tier 1 capital required to be well capitalized to risk-weighted assets	0.0800	0.0800
Common equity tier 1 capital required to be well capitalized to risk-weighted assets	6.50%	6.50%
Tier 1 leverage capital required to be well capitalized to average assets	0.0500	0.0500