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Derivative Financial Instruments: (Details Narrative)
€ in Thousands, $ in Thousands, ¥ in Millions, £ in Millions
Apr. 30, 2021
EUR (€)
Jun. 30, 2021
USD ($)
Jun. 30, 2021
EUR (€)
Jun. 30, 2021
GBP (£)
Jun. 30, 2021
JPY (¥)
Apr. 30, 2021
USD ($)
Apr. 30, 2021
EUR (€)
Derivative Instruments, Gain (Loss) [Line Items]              
Long-term Line of Credit | $   $ 143,000       $ 143,000  
Long-term Debt, Term   10 years 10 years 10 years 10 years 10 years 10 years
Interest rate swap | € € 80,000            
Derivative swap interest rate           1.10% 1.10%
Foreign Exchange Contract [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Foreign currency contracts | $   $ 61,500          
Euro Member Countries, Euro              
Derivative Instruments, Gain (Loss) [Line Items]              
Long-term Line of Credit | €     € 120,000       € 120,000
United Kingdom, Pounds | Foreign Exchange Contract [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Foreign currency contracts | £       £ 3.6      
Japan, Yen | Foreign Exchange Contract [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Foreign currency contracts | ¥         ¥ 50.0