Note F - Defined Benefit Pension Plan (Details) - Components Included in Defined Benefit Pension Plan's Net Periodic Benefit Expense (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Components Included in Defined Benefit Pension Plan's Net Periodic Benefit Expense [Abstract]
Interest cost	$ 22	$ 22	$ 66	$ 66
Expected return on plan assets	(9)	(3)	(28)	(8)
Net periodic expense	$ 13	$ 19	$ 38	$ 58