Note 8 - Shareholders' Equity - Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Outstanding, shares (in shares)	235,172	18,372
Outstanding, weighted average grant date price (in dollars per share)	$ 4.21	$ 4
Granted to employees and directors, shares (in shares)	29,675	227,000
Granted to employees and directors, weighted average grant date price (in dollars per share)	$ 5.56	$ 4.23
Vested, shares (in shares)	(8,172)	(10,200)
Vested, weighted average grant date price (in dollars per share)	$ 4.02	$ 3.99
Outstanding, shares (in shares)	256,675	235,172
Outstanding, weighted average grant date price (in dollars per share)	$ 4.38	$ 4.21