Note 9 - Stock Incentive Plan (Details Textual) - shares	3 Months Ended	6 Months Ended
	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Minimum [Member]
Decline of Book Value Per Share	15.00%		10.00%
Performance Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Increase (Decrease) in Number of Awards Due to Impairment (in shares)		(14,365)
The 2021 Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum		10.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)		1,473,324