Note F - Employee Benefit Plans - Components Included in Defined Benefit Pension Plan's Net Periodic Benefit Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Interest cost	$ 21	$ 22	$ 42	$ 44
Expected return on plan assets	(8)	(9)	(17)	(19)
Net periodic expense	$ 13	$ 13	$ 25	$ 25