Note 9 - Stock Incentive Plan - Share Based Compensation Arrangements by Share Based Payment Award (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Stock based compensation	$ 101	$ 652
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)	26,563	18,713
Granted and vested, grant date fair value (in dollars per share)	$ 8.66	$ 10.64
Outstanding, shares (in shares)	123,267	72,910
Outstanding, grant date fair value (in dollars per share)	$ 14.17	$ 17.82
Stock based compensation	$ 200	$ 164
Intrinsic value, end of period	$ 1,028	$ 755