Note 13 - Commitments and Contingencies (Details Textual) - Sep. 30, 2022 ¥ in Thousands, $ in Thousands	USD ($)	CNY (¥)
Contractual Obligation, Total	$ 2,415	¥ 17,203

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