Note 11 - Derivative Financial Instruments - Foreign Currency Exchange Contracts (Details) - Foreign Exchange Contract [Member] € in Thousands, £ in Thousands, $ in Thousands, $ in Millions, $ in Millions	Mar. 31, 2019 USD ($)	Mar. 31, 2019 CAD ($)	Mar. 31, 2019 GBP (£)	Mar. 31, 2019 EUR (€)	Mar. 31, 2019 MXN ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CAD ($)	Jun. 30, 2018 GBP (£)	Jun. 30, 2018 EUR (€)	Jun. 30, 2018 MXN ($)
United States of America, Dollars
Derivative, Notional Amount	$ 175,015					$ 64,558
Euro Member Countries, Euro
Derivative, Notional Amount | €				€ 12,250					€ 21,300
United Kingdom, Pounds
Derivative, Notional Amount | £								£ 6,826
Mexico, Pesos
Derivative, Notional Amount										$ 54
Canada, Dollars
Derivative, Notional Amount		$ 20.6					$ 20.6