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Note 16 - Acquisition (Details Textual)
6 Months Ended
Jun. 16, 2015
USD ($)
a
Jun. 15, 2015
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Geyser Asset Management Inc [Member] | Keaau Hawaii [Member]        
Area of Land | a 736      
Payments to Acquire Land $ 8,100,000      
Keaau Hawaii [Member] | Land With Macadamia Nut Trees and Windbreak Trees [Member]        
Area of Land | a 641      
The 2015 20-Year Term Loan [Member] | American AgCredit, FLCA [Member]        
Proceeds from Issuance of Long-term Debt   $ 5,265,000    
Bridge Loan [Member] | American Ag Credit [Member]        
Proceeds from Secured Notes Payable   $ 2,835,000    
Keaau Property [Member] | Through December 31, 2015 [Member]        
Lessor Leasing Arrangements, Annual Base Rent $ 545,076      
Keaau Property [Member] | January 1, 2016 Through December 31, 2021 [Member]        
Lessor Leasing Arrangements, Annual Base Rent $ 601,809      
Keaau Property [Member]        
Number of Leases Assumed by Lessor 5      
Proceeds from Issuance of Long-term Debt     $ 5,278,000