Note 9 - Stock Incentive Plan - Schedule of Nonvested Performance Based Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Stock based compensation		$ (140)	$ 409
Performance Shares [Member]
Unvested, shares (in shares)	[1]	81,403	36,921	36,921
Unvested, grant date fair value (in dollars per share)	[1]	$ 12.48	$ 20.57	$ 20.57
Fully vested shares granted (in shares)		36,773	0
Weighted average grant date price per share (in dollars per share)		$ 8.62	$ 0
Vested and issued, shares (in shares)		(10,312)	(4,462)
Vested and issued, grant date fair value (in dollars per share)		$ 14.97	$ 22.09
Unvested, shares (in shares)		107,864	32,459	81,403	[1]
Unvested, grant date fair value (in dollars per share)		$ 10.92	$ 20.36	$ 12.48	[1]
Stock based compensation		$ 44	$ 90
Unrecognized compensation expense, end of period		692	267
Intrinsic value, end of period		$ 963	$ 348
Weighted-average remaining vesting term (in years) (Year)		1 year 6 months	1 year 1 month 6 days

[1] The number of shares of common stock issuable upon the vesting of the remaining outstanding PUs as of December 31, 2023 was reduced by 14,365 shares as a result of a book value impairment event that occurred pursuant to the terms of the long term equity incentive compensation plans (the "Plans") established under the Company’s Incentive Plans. The book value impairment event occurred when the Company's book value per share declined by more than 15% during the quarter ended September 30, 2023 and the Company's book value per share decline from July 1, 2023 to December 31, 2023 was more than 10%. The Plans provide that if such a book value impairment event occurs, then the number of outstanding PUs that are outstanding as of the last day of such two quarter period shall be reduced by 15%.