Note 20 - Capital Ratios and Regulatory Minimum Requirements (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Consolidated Entities [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 167,711	$ 162,725
Tier 1 capital	158,753	152,077
Common equity tier 1 capital	158,753	152,077
Tier 1 leverage capital	$ 158,753	$ 152,077
Capital to risk-weighted assets	0.1309	0.1319
Tier 1 capital to risk-weighted assets	0.1239	0.1233
Common equity tier 1 capital to risk-weighted assets	12.39%	12.33%
Tier 1 leverage capital to average assets	0.0892	0.0875
Capital required for capital adequacy	$ 102,513	$ 98,701
Tier 1 capital required for capital adequacy	76,885	74,025
Common equity tier 1 capital required for capital adequacy	57,664	55,519
Tier 1 leverage capital required for capital adequacy	$ 71,185	$ 69,507
Capital required for capital adequacy to risk-weighted assets	0.08	0.08
Tier 1 capital required for capital adequacy to risk-weighted assets	0.06	0.06
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	0.04	0.04
Capital required to be well capitalized	$ 128,142	$ 123,376
Tier 1 capital required to be well capitalized	$ 76,885	$ 74,025
Capital required to be well capitalized to risk-weighted assets	0.10	0.10
Tier 1 capital required to be well capitalized to risk-weighted assets	0.06	0.06
Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital	$ 154,062	$ 149,908
Tier 1 capital	145,104	139,260
Common equity tier 1 capital	145,104	139,260
Tier 1 leverage capital	$ 145,104	$ 139,260
Capital to risk-weighted assets	0.122	0.1252
Tier 1 capital to risk-weighted assets	0.1149	0.1163
Common equity tier 1 capital to risk-weighted assets	11.49%	11.63%
Tier 1 leverage capital to average assets	0.0818	0.0807
Capital required for capital adequacy	$ 101,032	$ 95,796
Tier 1 capital required for capital adequacy	75,774	71,847
Common equity tier 1 capital required for capital adequacy	56,830	53,886
Tier 1 leverage capital required for capital adequacy	$ 70,961	$ 69,009
Capital required for capital adequacy to risk-weighted assets	0.08	0.08
Tier 1 capital required for capital adequacy to risk-weighted assets	0.06	0.06
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	0.04	0.04
Capital required to be well capitalized	$ 126,290	$ 119,746
Tier 1 capital required to be well capitalized	101,032	95,796
Common equity tier 1 capital required to be well capitalized	82,088	77,835
Tier 1 leverage capital required to be well capitalized	$ 88,701	$ 86,261
Capital required to be well capitalized to risk-weighted assets	0.10	0.10
Tier 1 capital required to be well capitalized to risk-weighted assets	0.08	0.08
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	0.05	0.05