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Note 4 - Property (Details Textual) - Land [Member]	3 Months Ended
Note 4 - Property (Details Textual) - Land [Member]	Mar. 31, 2018 ft² a
Area of Land	22,800
West Maui [Member]
Area of Land	20,700
Area of Elevation from Sea \| ft²	5,700
West Maui [Member] \| Kapalua Resort [Member]
Area of Land	3,000
Area of Land Designated	900
Upcountry Maui [Member]
Area of Land	2,100