Note 15 - Regulatory Matters/Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 25, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 26, 2022
Common Stock, Dividends, Per Share, Declared (in dollars per share)		$ 0.33	$ 0.27
Stock Issued During Period, Shares, Dividend Reinvestment Plan (in shares)		5,089	12,189
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)				750,000
Stock Repurchased and Retired During Period, Shares (in shares)		384,830
Stock Repurchased and Retired During Period, Weighted Average Cost Per Share (in dollars per share)		$ 9.45
Payments for Repurchase of Common Stock		$ 3,636	$ 2,397
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.090
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)	750,000
Dividends Payable, Date to be Paid	Mar. 15, 2023
Dividends Payable, Date of Record	Mar. 01, 2023