Note H - Segment Information - Capital Expenditures by Geographical Region (Details) - USD ($) $ in Thousands	9 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Capital Expenditures	$ 4,251	$ 3,432
UNITED STATES
Capital Expenditures	1,788	1,110
Europe [Member]
Capital Expenditures	$ 2,463	$ 2,322

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration