Note G - Economic Dependency (Details) - Substantial Net Purchase from Certain Supplier (Cost of Goods, Total [Member], Supplier Concentration Risk [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Concentration Risk [Line Items]
Raw Material Purchases by Supplier	$ 1,952		[1]
% of Total Raw Material Purchases	21.00%		[1]
Supplier 1 [Member]
Concentration Risk [Line Items]
Raw Material Purchases by Supplier	1,034		[1]
% of Total Raw Material Purchases	11.00%		[1]
Supplier 2 [Member]
Concentration Risk [Line Items]
Raw Material Purchases by Supplier	$ 918		[1]
% of Total Raw Material Purchases	10.00%		[1]

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