Note 21 - Unaudited Quarterly Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2024		Sep. 30, 2024		Jun. 30, 2024		Mar. 31, 2024		Dec. 31, 2023		Sep. 30, 2023		Jun. 30, 2023		Mar. 31, 2023		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unaudited Quarterly Results Of Operations [Abstract]
Interest income	$ 22,209		$ 21,945		$ 20,345		$ 19,569		$ 19,257		$ 18,497		$ 15,865		$ 15,463		$ 84,068	$ 69,082	$ 52,421
Interest expense	11,234		10,818		9,753		9,401		9,065		8,284		6,532		5,046		41,206	28,927	7,924
Net interest income	10,975		11,127		10,592		10,168		10,192		10,213		9,333		10,417		42,862	40,155	44,497
(Reversal of) provision for credit losses	(255)		159		114		(86)		293		459		209		(1,805)		(68)	(844)	(850)
Non-interest income	1,645		1,967		1,465		1,836		283		1,755		1,580		1,219		6,913	4,837	5,731
Non-interest expense	9,081		8,636		8,934		8,833		8,746		8,671		8,492		8,200		35,484	34,109	31,492
Income before income taxes	3,794		4,299		3,009		3,257		1,436		2,838		2,212		5,241		14,359	11,727	19,586
Provision for income taxes	743		961		544		663		302		494		325		1,123		2,911	2,244	3,665
Net income	$ 3,051		$ 3,338		$ 2,465		$ 2,594		$ 1,134		$ 2,344		$ 1,887		$ 4,118		$ 11,448	$ 9,483	$ 15,921
Earnings Per Share - basic	$ 0.83	[1]	$ 0.91	[1]	$ 0.67	[1]	$ 0.71	[1]	$ 0.31	[1]	$ 0.65	[1]	$ 0.52	[1]	$ 1.15	[1]	$ 3.12	$ 2.63	$ 4.47
Earnings Per Share - diluted	$ 0.83	[1]	$ 0.91	[1]	$ 0.67	[1]	$ 0.71	[1]	$ 0.31	[1]	$ 0.65	[1]	$ 0.52	[1]	$ 1.15	[1]	$ 3.12	$ 2.63	$ 4.47

[1] Due to rounding, quarterly earnings per share may not sum to annual earnings per share