Note M - Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized Over Next Fiscal Year (Details) $ in Thousands	12 Months Ended
Jun. 30, 2016 USD ($)
Pension Plan [Member]
Net transition obligation	$ 99
Actuarial net loss	3,598
Net amount to be recognized	3,697
Other Postretirement Benefit Plan [Member]
Net transition obligation
Actuarial net loss	726
Net amount to be recognized	$ 726

Amount included in accumulated other comprehensive income (AOCI) related to transition obligation (asset) expected to be recognized as components of net periodic benefit cost (credit) for the fiscal year that follows the most recent annual statement of financial position.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (s)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanAmortizationOfNetTransitionAssetObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration