Note 3 - Concentration of Credit Risk, Other Concentration Risks and Significant Customers (Detail)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Number Of Major Customers, Concentration Risk	2	1	2	1
Customer 1 [Member] | Accounts Receivable [Member]
Concentration Risk, Percentage	18.80%	9.40%	18.80%
Customer 1 [Member]
Entity-Wide Revenue, Major Customer, Percentage	17.20%	11.10%	10.20%	11.10%
Customer 2 [Member] | Accounts Receivable [Member]
Concentration Risk, Percentage	7.40%		7.40%
Customer 2 [Member]
Entity-Wide Revenue, Major Customer, Percentage	11.60%		9.40%
Sales Outside North America As Percent of Net Revenues [Member]
Concentration Risk, Percentage	65.60%	54.80%	50.70%	45.30%