Note 9 - Stock Incentive Plan - Share Based Compensation Arrangements by Share Based Payment Award (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Stock based compensation	$ 553	$ 1,198	$ 685
Deferred Stock Units [Member]
Outstanding, shares (in shares)	96,704	54,197
Outstanding, grant date fair value (in dollars per share)	$ 15.69	$ 20.29
Granted and vested, shares (in shares)	57,681	42,507
Granted and vested, grant date fair value (in dollars per share)	$ 8.43	$ 9.81
Outstanding, shares (in shares)	154,385	96,704	54,197
Outstanding, grant date fair value (in dollars per share)	$ 12.98	$ 15.69	$ 20.29
Stock based compensation	$ 429	$ 378
Intrinsic value, end of period	$ 1,201	$ 815