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Note 5 - Concentrations (Details) (USD $)
3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Mar. 31, 2014
Note 5 - Concentrations (Details) [Line Items]          
Revenues (in Dollars) $ 748,593 $ 389,972 $ 1,372,267 $ 712,411  
Accounts Receivable, Net, Current (in Dollars) 435,658   435,658   271,038
Foreign Customers [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
         
Note 5 - Concentrations (Details) [Line Items]          
Concentration Risk, Percentage 12.10% 21.80% 9.50% 18.50%  
Revenues (in Dollars) 90,540 85,145 130,635 132,099  
Foreign Customers [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
         
Note 5 - Concentrations (Details) [Line Items]          
Accounts Receivable, Net, Current (in Dollars) $ 23,128 $ 6,966 $ 23,128 $ 6,966  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
         
Note 5 - Concentrations (Details) [Line Items]          
Concentration Risk, Number Of Customers 1 2 1 2  
Concentration Risk, Percentage 18.00% 26.00% 18.00% 27.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member]
         
Note 5 - Concentrations (Details) [Line Items]          
Concentration Risk, Number Of Customers     3    
Concentration Risk, Percentage     42.00%