Note J - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - Customer Concentration Risk [Member] - Sales Revenue, Goods, Net [Member] - USD ($)	12 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Customer 1 [Member]
Net sales by customer	$ 29,724,000		$ 25,252,000
% of total net sales	43.00%		38.00%
Customer 2 [Member]
Net sales by customer	$ 11,018,000		$ 11,256,000
% of total net sales	16.00%		17.00%
Customer 3 [Member]
Net sales by customer	$ 8,090,000		$ 0	[1]
% of total net sales	12.00%		0.00%	[1]
Customer 4 [Member]
Net sales by customer	$ 0	[1]	$ 10,960,000
% of total net sales	0.00%	[1]	16.00%
Net sales by customer	$ 48,832,000		$ 47,468,000
% of total net sales	71.00%		71.00%

[1] Sales were less than 10% of the respective period's total private label contract manufacturing net sales.