Note G - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2016		Mar. 31, 2015	Mar. 31, 2016		Mar. 31, 2015
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Revenue, Net	$ 13,023		$ 7,051	$ 31,714		$ 22,999
Concentration Risk, Percentage	53.00%		41.00%	51.00%		45.00%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Revenue, Net	$ 3,367		$ 1,864	$ 9,705			[1]
Concentration Risk, Percentage	14.00%		11.00%	16.00%			[1]
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 3 [Member]
Revenue, Net	$ 3,196	[1]	$ 3,763	$ 6,805	[1]	$ 8,355
Concentration Risk, Percentage	13.00%	[1]	22.00%	11.00%	[1]	16.00%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]
Revenue, Net	$ 19,586		$ 12,678	$ 48,224		$ 31,354
Concentration Risk, Percentage	80.00%		74.00%	78.00%		61.00%
Revenue, Net	$ 30,006		$ 19,613	$ 78,502		$ 56,926

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