Note 2 - Assets Held for Sale (Details Textual) - USD ($) $ in Millions	Feb. 29, 2020	Dec. 31, 2019
Kapalua Central Resort Project [Member]
Receivables, Long-term Contracts or Programs, Total	$ 43.9
Kapalua Water Company and Kapalua Waste Treatment Company [Member] \| Kapalua Resort [Member]
Receivables, Long-term Contracts or Programs, Total		$ 4.3

Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(c))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_ReceivablesLongTermContractsOrPrograms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant