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Note 5 - Assets Held for Sale and Real Estate Operating Revenues (Details Textual)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 28, 2017
USD ($)
a
Jun. 30, 2017
USD ($)
a
Repayments of Lines of Credit $ 5.6  
Kapalua Mauka [Member]    
Real Estate, Developer Contributions   $ 6.7
Area of Real Estate Property | a   125
Kapalua Golf Academy [Member]    
Area of Real Estate Property | a 15  
Proceeds from Sale of Real Estate, Total $ 7.0  
Gain (Loss) on Sale of Properties $ 6.4