Note O - Subsequent Events (Details Textual) - Foreign Exchange Contract [Member] - Cash Flow Hedging [Member] € in Millions, SFr in Millions, $ in Millions	Sep. 07, 2022 CHF (SFr)	Aug. 16, 2022 CHF (SFr)	Jul. 21, 2022 EUR (€)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 EUR (€)
Derivative, Notional Amount				$ 37.7	€ 31.9
Subsequent Event [Member] \| Designated as Hedging Instrument [Member]
Derivative, Notional Amount	SFr 12.0	SFr 7.5	€ 5.9
Derivative, Average Forward Exchange Rate	0.9735	0.9477	1.030

Nominal or face amount used to calculate payment on derivative.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant