Note 14 - Commitments and Contingencies (Details Textual) ¥ in Thousands, $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Jun. 30, 2021 USD ($)
Contractual Obligation, Total	$ 91	¥ 542	$ 0
MALAYSIA
Contractual Obligation, Total	$ 0		$ 93

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

No definition available.

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