Note 3 - Business Segment Information (Details) - Revenue by Geographic Region (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012
Note 3 - Business Segment Information (Details) - Revenue by Geographic Region [Line Items]
Net Sales	$ 76,123	[1]	$ 71,082	[1]	$ 156,609	[1]	$ 145,801	[1]
United States [Member]
Note 3 - Business Segment Information (Details) - Revenue by Geographic Region [Line Items]
Net Sales	76,060	[1]	70,964	[1]	155,733	[1]	145,653	[1]
Canada [Member]
Note 3 - Business Segment Information (Details) - Revenue by Geographic Region [Line Items]
Net Sales	$ 63	[1]	$ 118	[1]	$ 876	[1]	$ 148	[1]

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