Note 17 - Regulatory Capital Requirements and Restrictions on Dividends - (Details)			12 Months Ended
	May 19, 2022 shares	Feb. 13, 2020 shares	Dec. 31, 2022 security shares	Dec. 31, 2021 shares
The number of junior subordinated private placement debentures issued | security			4
The number of junior subordinated private placement debentures assumed | security			4
Shares repurchased			970,000	293,153
Number of shares remaining for repurchase			935,915
Percentage of outstanding shares under share repurchase program	10.00%	5.00%
Maximum
Shares repurchased authorized	1,500,000	800,000