Note 5 - Assets Held for Sale - Assets Held for Sale (Details) (Parentheticals) - a	Jun. 30, 2021	Dec. 31, 2020
Kapalua Central Resort Project [Member] | Kapalua Resort [Member]
Area of real estate (Acre)	46	46
630-Acre Parcel Of Agricultural Land [Member] | Upcountry Maui [Member]
Area of real estate (Acre)	630	630