Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Major Customer Concentrations - Customers Comprising 10% or More of Net Sales (Details)

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Note 7 - Major Customer Concentrations - Customers Comprising 10% or More of Net Sales (Details) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member]
 3 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Customer A [Member]    
Concentration Risk, Percentage 22.00% 28.00%
Customer B [Member]    
Concentration Risk, Percentage 12.00% 14.00% [1]
[1] Less than 10%