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Note 11 - Partners' Capital (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Royal Hawaiian Resources [Member] | General Partner [Member]          
Proceeds from Sale of Interest in Partnership Unit $ 224,000     $ 224,000  
General Partner [Member]          
Proceeds from Sale of Interest in Partnership Unit   $ 224,000
Net Loss, Percent Allocated to General Partner       1.00%  
Net Loss, Percentage Allocated to Class A Unit Holders       99.00%  
Proceeds from Sale of Interest in Partnership Unit   $ 224,000
Increase (Decrease) in Partners' Capital       $ 224,000