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Note 3 - Deposits (Details Textual) - USD ($)
12 Months Ended
Jul. 01, 2016
Aug. 12, 2014
Dec. 31, 2016
Dec. 31, 2012
Dec. 31, 2015
Dec. 18, 2015
Customer Deposits, Current       $ 135,000  
Peter Holdings Ltd [Member]            
Joint Venture Royalties Percentage       50.00%    
Peter Holdings Ltd [Member] | Licensing Agreements [Member] | Isan System License Agreement [Member] | Clarion Water [Member]            
Customer Deposits, Current   $ 100,000        
License Agreement Term   10 years        
Royalty As Percentage of Sales   10.00%        
Royalty as Percentage of Sublicensing Fees   40.00%        
Peter Holdings Ltd [Member] | Licensing Agreements [Member] | Isan System License Agreement [Member] | Clarion Water [Member] | Beginning July 1 2016 [Member]            
Quarterly Payments from Licensee $ 45,000   $ 50,000      
Potential Investor in 2015 Unit Offering [Member]            
Customer Deposits, Current           $ 35,000