Note 15 - Fair Value Measurements - Level 3 Fair Value Measurements (Details) - Valuation, Market Approach [Member]		Dec. 31, 2022	[1]	Dec. 31, 2021	Dec. 31, 2020
Measurement Input, Cost to Sell [Member]
OREO		0.0700			0.0620
Measurement Input, Discount Rate [Member]
OREO	[1]			0.3472

[1] As of September 30, 2022 and December 31, 2021, OREO was composed of a single property.