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Note 6 - License Agreements (Detail) (USD $)
0 Months Ended 3 Months Ended 0 Months Ended 1 Months Ended
Dec. 01, 2006
Monsanto [Member]
Aug. 28, 2011
Monsanto [Member]
Jun. 24, 2012
INCOTEC [Member]
Mar. 31, 2006
Air Products [Member]
Sep. 30, 2007
Chiquita [Member]
Jun. 30, 2010
Windset [Member]
Apio [Member]
Jun. 30, 2010
Minimum [Member]
License Agreement Term 5 years   7 years   5 years    
Termination Fee $ 4,000,000            
Licenses Revenue   1,350,000          
Royalty Percentage     20.00%        
License Agreement Profit Percentage       40.00%      
Development Fee           100,000  
Annual License Fee Percentage           3.00%  
Annual Minimum License Fees             $ 150,000