Note 12 - Fair Value Measurements - Quantitative Information About Level 3 Fair Value Measurements (Details) - Fair Value, Inputs, Level 3 [Member] - Valuation Technique, Discounted Appraisal Value [Member] - Measurement Input, Cost to Sell [Member]	Sep. 30, 2022	[1]
Other real estate owned, net	0.0800
Minimum [Member]
Impaired loans	0.0800
Maximum [Member]
Impaired loans	0.15

[1] Unobservable inputs were weighted by the relative fair value of the impaired loans.