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Significant accounting policies (Tables)
12 Months Ended
Jun. 30, 2022
Significant accounting policies  
Summary of estimated useful life of property and equipment

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Leasehold improvements, tradeshow equipment, software and books

    

5 years

Office furniture and computer equipment

​

3 -5 years

Stockroom and production equipment

​

5 -7 years

Summary of estimated useful life of intangible assets

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Purchased technology

    

6 -10 years

Customer relationship

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3 -10 years

Brand

​

6 -10 years

Other purchased intangibles

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3 - 10 years