• Filing Date: 2017-11-20
  • Form Type: 10-Q
  • Description: Quarterly report
v3.8.0.1
Note 4 - Concentrations (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Mar. 31, 2017
USD ($)
Revenues $ 1,069,706 $ 1,380,338 $ 2,216,061 $ 2,757,769  
Accounts Receivable, Net, Current 1,296,896   1,296,896   $ 862,619
Foreign Customers [Member]          
Accounts Receivable, Net, Current $ 3,904   $ 3,904   $ 48,213
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]          
Concentration Risk, Number of Customers 3 1 3 1  
Concentration Risk, Percentage 49.00% 58.00% 47.00% 57.00%  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Foreign Customers [Member]          
Concentration Risk, Percentage 8.00% 7.00% 7.00% 7.00%  
Revenues $ 90,625 $ 97,866 $ 158,657 $ 198,398  
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Concentration Risk, Number of Customers     3   1
Concentration Risk, Percentage     92.00%   83.00%