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Geographical Data - Additional Information (Details) - USD ($)
Mar. 31, 2020
Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]    
Inventories $ 34,615,000 $ 29,576,000
Fixed assets 8,105,000 7,694,000
Dominican Republic [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Inventories 27,494 22,549
Fixed assets $ 3,489 $ 3,443