Note D - Other Comprehensive Loss (Details Textual) $ in Millions	6 Months Ended
Dec. 31, 2019 USD ($)
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect
Accounting Standards Update 2018-02 [Member]
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect	$ 0.1

Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL116659650-108580

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