NOTE 17 - SEGMENT AND RELATED INFORMATION - Foreign Service and Repair Fees - (Details)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	4.50%	5.60%
PUERTO RICO
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	1.50%	1.60%
SWITZERLAND
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	0.30%	0.30%
GERMANY
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	1.50%	1.50%
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	0.60%	0.70%
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	0.30%	0.30%
GREECE
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	0.30%	0.20%
AUSTRALIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign Service and Repair fees	0.00%	1.00%