Note 6 - Due From Related Parties, Net (Details Textual) $ in Thousands, ¥ in Millions	Jun. 30, 2020 USD ($)	Jun. 30, 2020 CNY (¥)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CNY (¥)
Due from Related Parties, Current, Total	$ 52		$ 81
Chuangshi Meiwei and Guoshua Shiji [Member] \| Related-party Working Capital Loans [Member]
Due from Related Parties, Current, Total	$ 170	¥ 1.2	$ 170	¥ 1.2

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Name:	us-gaap_DueFromRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant