Note 11 - Stockholders' Equity and Earnings Per Share (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Aug. 05, 2022
Stock Repurchased and Retired During Period, Shares (in shares)	8,785	2,699
Stock Repurchased and Retired During Period, Per Share (in dollars per share)	$ 6.94	$ 7.76
Stock Repurchased and Retired During Period, Value	$ 62,000	$ 21,000
Excess Stock, Shares Authorized (in shares)	1,000,000
Preferred Stock, Shares Outstanding (in shares)	0	0
Weighted Average [Member]
Stock Repurchased and Retired During Period, Per Share (in dollars per share)	$ 6.92	$ 7.74
Common Stock [Member]
Stock Repurchase Program, Authorized Amount			$ 1,500,000