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NOTE 5 - INVENTORIES - Inventories (Details) - USD ($)
Jun. 30, 2019
Jun. 30, 2018
Inventory Disclosure [Abstract]    
Purchased parts, components and supplies $ 1,639,777 $ 1,312,299
Work-in-process 158,389 119,081
Inventories $ 1,798,166 $ 1,431,380