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Note 7 - Equity Transactions (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 4 Months Ended 12 Months Ended
May 23, 2018
Feb. 23, 2017
Jun. 06, 2016
Jan. 30, 2019
Apr. 30, 2018
Oct. 31, 2017
Apr. 30, 2014
Mar. 30, 2018
Apr. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
May 22, 2018
Allocated Share-based Compensation Expense, Total                   $ 83,420 $ 118,680  
Equity Units, Number of Common Shares in Each Unit                   1    
Proceeds from Issuance of Private Placement               $ 74,983        
Common Stock, Shares Authorized 500,000,000                 500,000,000 100,000,000 100,000,000
Conversion of Preferred Stock to Common Stock, Number of Shares Issued Per Share Converted 400                      
Increase (Decrease) in Number of Common Shares Outstanding 14,240,000                      
Series B Preferred Stock [Member]                        
Convertible Preferred Stock, Shares Issued upon Conversion           400            
Preferred Stock, Liquidation Preference Per Share           $ 100            
Scarsdale Agreement Warrants [Member]                        
Term of Warrant                 7 years      
Class of Warrant or Right, Percentage of Securities Issued Called by Warrants or Rights             6.00%          
Class of Warrant or Right, Exercise Price, Percentage of Offering Price             100.00%          
Warrants Issued with Units [Member]                        
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 0.35     $ 0.25       $ 0.25      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights         400       400      
Warrants Issued to Scarsdale in Connection with Private Placement [Member]                        
Term of Warrant   7 years 7 years                  
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 0.35       $ 100            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   164,074       600            
Warrant [Member]                        
Term of Warrant           7 years            
Class of Warrant or Right, Exercise Price of Warrants or Rights           $ 0.25            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights           400            
Warrants To Purchase Common Stock [Member]                        
Term of Warrant                   7 years    
Warrants to Purchase Units Sold in May 2016 Private Placement [Member]                        
Term of Warrant                   7 years    
Class of Warrant or Right, Exercise Price of Warrants or Rights                   $ 0.25    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                   480,000    
Warrants to Purchase Units Sold in February 2017 Private Placement [Member]                        
Class of Warrant or Right, Exercise Price of Warrants or Rights                   $ 0.35    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                   164,074    
Warrants to Purchase Units Sold in October 2017 Private Placement [Member]                        
Class of Warrant or Right, Exercise Price of Warrants or Rights                   $ 100    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                   600    
Financial Advisory and Exclusive Placement Agent Agreement [Member] | Scarsdale [Member]                        
Private Placement Fee, Percentage of Proceeds             6.00%          
Private Placement [Member]                        
Equity Units, Number of Series B Convertible Preferred Stock in Each Unit     1   1       1      
Term of Warrant                 7 years      
Equity Units Issued During Period, Shares, New Issues   5,754,832     20,100         3,519,963    
Shares Issued, Price Per Share   $ 0.35                    
Equity Units, Number of Common Shares in Each Unit   1                    
Equity Units, Warrant Component, Warrant Term   7 years                    
Proceeds from Issuance of Private Placement   $ 2,000,000     $ 2,010,000         $ 2,342,034    
Stock Issued During Period, Shares, New Issues           15,500            
Share Price         $ 100 $ 100     $ 100 $ 0.65    
Payment for Cash Fee           $ 60,000       $ 50,000    
Private Placement [Member] | Subsequent Event [Member]                        
Proceeds from Issuance of Private Placement       $ 130,063                
Private Placement [Member] | Series B Preferred Stock [Member]                        
Convertible Preferred Stock, Shares Issued upon Conversion         400       400      
Private Placement [Member] | Scarsdale [Member]                        
Payments of Stock Issuance Costs   153,000                    
Private Placement [Member] | Another Party with Respect to Private Placement [Member]                        
Payments of Stock Issuance Costs   $ 10,000                    
Employee, Board Members, and the Company Secretary [Member]                        
Stock Issued During Period, Shares, Share-based Compensation, Gross                     292,000