Note 5 - Assets Held for Sale (Details Textual) - USD ($) $ in Thousands		6 Months Ended
	May 01, 2021	Jun. 30, 2021	Jun. 30, 2020	Feb. 29, 2020
Proceeds from Sale of Productive Assets, Total		$ 4,203	$ 0
PUC-regulated Assets of Kapalua Water Company, Ltd and Kapalua Waste Treatment Company, Ltd [Member]
Proceeds from Sale of Productive Assets, Total	$ 4,200
Kapalua Central Resort Project [Member]
Receivables, Long-term Contracts or Programs, Total				$ 43,900