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Note 13 - Commitments and Contingencies (Details Textual) ¥ in Thousands, $ in Thousands	Sep. 30, 2021 USD ($)	Sep. 30, 2021 CNY (¥)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Contractual Obligation, Total	$ 68	¥ 284
MALAYSIA
Contractual Obligation, Total	$ 0		$ 93
CHINA
Contractual Obligation, Total		¥ 5,799	$ 1,378	$ 0

X

- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	srt_StatementGeographicalAxis=country_MY
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_CN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: