Note G - Employee Benefit Plans - Defined Benefit Pension Plan's Funded Status and Amount Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Change in Benefit Obligation:
Benefit obligation at beginning of year	$ 2,080	$ 1,901
Interest cost	87	80
Actuarial loss	272	144
Benefits paid	(112)	(45)
Benefit obligation at end of year	2,329	2,080
Change in Plan Assets:
Fair value of plan assets at beginning of year	1,642	1,719
Actual return on plan assets	74	(5)
Benefits paid	(112)	(45)
Plan expenses	(33)	(27)
Fair value of plan assets at end of year	1,571	1,642
Reconciliation of Funded Status:
Difference between benefit obligation and fair value of plan assets	(758)	(438)
Unrecognized net actuarial loss in accumulated other comprehensive income	1,117	904
Net amount recognized	359	466
Projected benefit obligation	2,329	2,080
Accumulated benefit obligation	2,329	2,080
Fair value of plan assets at end of year	$ 1,571	$ 1,642