Note 8 - Stock Incentive Plan - Schedule of Nonvested Performance Based Units Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock based compensation	$ 409	$ 162
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)	0	35,114
Weighted average grant date price per share (in dollars per share)	$ 0	$ 16.55
Vested and issued, shares (in shares)	(4,462)	(2,664)
Vested and issued, grant date fair value (in dollars per share)	$ 22.09	$ 29.40
Unvested, shares (in shares)	32,459	59,095
Unvested, grant date fair value (in dollars per share)	$ 20.36	$ 21.75
Stock based compensation	$ 90	$ 106
Unrecognized compensation expense, end of period	267	942
Intrinsic value, end of period	$ 348	$ 960
Weighted-average remaining vesting term (in years) (Year)	1 year 1 month 6 days	1 year 9 months 18 days