Note 3 - Restructuring Plan Announced March 18, 2013 (Detail) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Mar. 18, 2013
Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date Percent				32.00%
Restructuring and Related Cost, Incurred Cost	$ 1,600,000
Inventory Write-down		6,700,000	6,694,000
Restructuring Costs and Asset Impairment Charges	600,000
Impairment of Intangible Assets, Finite-lived	2,600,000
Other Restructuring Costs	800,000
Minimum [Member]
Restructuring and Related Cost, Incurred Cost	12,500,000
Other Restructuring Costs	2,600,000
Effect on Future Cash Flows, Amount	200,000
Restructuring and Related Cost, Expected Cost	2,700,000
Maximum [Member]
Restructuring and Related Cost, Incurred Cost	12,800,000
Other Restructuring Costs	2,900,000
Effect on Future Cash Flows, Amount	500,000
Restructuring and Related Cost, Expected Cost	2,900,000
Non Cash Inventory Impairment Charges (Member)
Inventory Write-down	6,700,000
Employee Severance [Member]
Restructuring Costs and Asset Impairment Charges	600,000
Other Restructuring [Member]
Impairment of Intangible Assets, Finite-lived	$ 2,600,000