Note 9 - Derivative Financial Instruments - Foreign Currency Exchange Contracts (Details) - Foreign Exchange Contract [Member] € in Thousands, £ in Thousands, $ in Thousands, $ in Millions, $ in Millions	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CAD ($)	Jun. 30, 2018 GBP (£)	Jun. 30, 2018 EUR (€)	Jun. 30, 2018 MXN ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 CAD ($)	Jun. 30, 2017 GBP (£)	Jun. 30, 2017 EUR (€)	Jun. 30, 2017 MXN ($)
United States of America, Dollars
Derivative, Notional Amount	$ 64,558					$ 73,000
Euro Member Countries, Euro
Derivative, Notional Amount | €				€ 21,300					€ 21,335
United Kingdom, Pounds
Derivative, Notional Amount | £			£ 6,826					£ 6,962
Mexico, Pesos
Derivative, Notional Amount					$ 54					$ 54
Canada, Dollars
Derivative, Notional Amount		$ 20.6					$ 20.6