Note 7 - Major Customer Concentration - Customers Comprising 10% or More of Net Sales (Details) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member]	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Customer A [Member]
Concentration Risk, Percentage	26.00%	23.00%
Customer B [Member]
Concentration Risk, Percentage	13.00%		[1]

[1] Less than 10%