Note 9 - Stock Incentive Plan - Schedule of Stock Awards (Details) - Stock Awards [Member] - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Fully vested shares granted (in shares)		76,696	35,114
Weighted average grant date price per share (in dollars per share)		$ 10.82	$ 16.55
Compensation expense related to fully vested shares of common stock awards(1)	[1]	$ 830	$ 581

[1] The awards issued during the year ended December 31, 2023 were granted with respect to service performed in 2022. Approximately $600,000 of compensation expense related to the 2023 awards was accrued and recognized in 2022. The awards issued during the year ended December 31, 2022 were granted with respect to service performed in 2021. Approximately $600,000 of compensation expense related to the 2022 awards was accrued and recognized in 2021.