Note J - Economic Dependency - Substantial Net Purchase From Certain Supplier (Details) - Supplier Concentration Risk [Member] - Raw Material Purchases [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	[1]
Raw Material Purchases by Supplier	$ 6,694
% of Total Raw Material Purchases	12.00%
Supplier 1 [Member]
Raw Material Purchases by Supplier	$ 6,694
% of Total Raw Material Purchases	12.00%

[1] Purchases were less than 10% of the respective period's total raw material purchases.