Note 9 - Stock Incentive Plan - Schedule of Nonvested Performance Based Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Stock based compensation		$ 939	$ 552
Performance Shares [Member]
Unvested, shares (in shares)		36,921	26,645
Unvested, grant date fair value (in dollars per share)		$ 20.57	$ 29.40
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
Forfeited, shares (in shares)	[1]	0	(8,464)
Forfeited, grant date fair value (in dollars per share)	[1]	$ 0	$ 21.40
Vested and issued, shares (in shares)		(13,386)	(7,594)
Vested and issued, grant date fair value (in dollars per share)		$ 22.09	$ 29.40
Unvested, shares (in shares)		100,231	45,701
Unvested, grant date fair value (in dollars per share)		$ 12.91	$ 21.01
Stock based compensation		$ 430	$ 331
Unrecognized compensation expense, end of period		757	535
Intrinsic value, end of period		$ 853	$ 375
Weighted-average remaining vesting term (in years) (Year)		1 year 4 months 24 days	1 year 4 months 24 days

[1] The number of shares of common stock issuable upon the vesting of the remaining outstanding PUs was reduced as a result of the 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 March 31, 2022 and the Company's book value per share decline from January 1, 2022 to June 30, 2022 was more than 10%. The Plans provide that if such a book value impairment event occurs, then the number of outstanding Performance Units that are outstanding as of the last day of such two quarter period shall be reduced by 15%.