Note 5 - Assets Held for Sale and Real Estate Sales (Details Textual) - West Maui [Member] - Working-class Community Project [Member] $ in Millions	1 Months Ended
Mar. 31, 2016 USD ($) a	Dec. 31, 2015 a
Closing Period	15 days
Area of Real Estate Property \| a	304
Disposal Group, Including Discontinued Operation, Consideration \| $	$ 15
Due Diligence, Period	90 days

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

No definition available.

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