• Filing Date: 2016-11-17
  • Form Type: 10-Q
  • Description: Quarterly report
v3.5.0.2
Note 4 - Concentrations (Details Textual)
3 Months Ended 6 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Mar. 31, 2016
USD ($)
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Foreign Customers [Member]          
Concentration Risk, Percentage 7.10% 7.90% 7.20% 8.60%  
Revenues $ 97,866 $ 98,411 $ 198,398 $ 199,638  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]          
Concentration Risk, Number of Customers 1 1 1 1  
Concentration Risk, Percentage 58.00% 42.00% 57.00% 42.00%  
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Concentration Risk, Number of Customers     2 1  
Concentration Risk, Percentage     58.00% 50.00%  
Foreign Customers [Member]          
Accounts Receivable, Net, Current $ 4,142 $ 35,241 $ 4,142 $ 35,241  
Revenues 1,380,338 $ 1,252,881 2,757,769 $ 2,308,809  
Accounts Receivable, Net, Current $ 917,754   $ 917,754   $ 588,875