Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Concentrations (Details Textual)

v3.8.0.1
Note 7 - Concentrations (Details Textual)
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Jun. 30, 2017
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]          
Number of Major Customers 2   2    
Concentration Risk, Percentage 92.00%   85.00%    
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Four Customers [Member]          
Number of Major Customers   4      
Concentration Risk, Percentage   69.00%      
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Three Customers [Member]          
Number of Major Customers   3      
Concentration Risk, Percentage   58.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Number of Major Customers 2       5
Concentration Risk, Percentage 91.00%       91.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member]          
Concentration Risk, Percentage 65.00% 54.00% 57.00% 60.00%  
Number of Major Suppliers 4 2 4 3