Note 3 - Business Segment And Major Customers Information (Detail) - Revenue by Geographic Region (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
Net Sales	$ 71,082	[1]	$ 68,774	[1]	$ 145,801	[1]	$ 134,269	[1]
United States [Member]
Net Sales	70,964	[1]	68,688	[1]	145,653	[1]	133,667	[1]
Canada [Member]
Net Sales	$ 118	[1]	$ 86	[1]	$ 148	[1]	$ 602	[1]

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