Note 6 - Goodwill and Intangibles - Goodwill (Details) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2022	Nov. 30, 2021	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2020
Balance at the beginning of period				$ 74,748	$ 74,066	$ 74,748
Acquisition of GFED					63,541
Goodwill impairment	$ 0	$ 0	$ 0			(500)
Balance at the end of period					$ 137,607	74,066
Asset held-for-sale | Bates Companies
Sale						(182)
Bates Companies
Goodwill impairment				$ (500)		$ (500)