Note 5 - Assets Held for Sale - Assets Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets held for sale	$ 7,607	$ 7,597
Kapalua Central Resort Project [Member] | Kapalua Resort [Member]
Assets held for sale	2,948	2,938
Kapalua Resort, Kapalua Water Company, and Kapalua Waste Treatment Company Assets [Member] | Kapalua Resort [Member]
Assets held for sale	4,503	4,503
630-Acre Parcel Of Agricultural Land [Member] | Upcountry Maui [Member]
Assets held for sale	$ 156	$ 156