Note J - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016		Jun. 30, 2015
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Revenue, Net	$ 49,442		$ 29,724
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Revenue, Net	13,952		8,090
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Customer 3 [Member]
Revenue, Net		[1]	11,018
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]
Revenue, Net	63,394		48,832
Revenue, Net	$ 114,201		$ 79,508

[1] Sales were less than 10% of the respective period's consolidated net sales.