Note 3 - Business Segment And Major Customers Information (Detail) - Revenue by Geographic Region (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Net Sales	$ 74,719	[1]	$ 65,495	[1]
United States [Member]
Net Sales	74,689	[1]	64,979	[1]
Canada [Member]
Net Sales	$ 30	[1]	$ 516	[1]

[1] Net sales are attributed to geographic areas based upon the location of the operation making the sale.