Note 1 - Nature of Operations, Basis of Presentation and Consolidation (Details Textual) ¥ in Millions, $ in Millions |
6 Months Ended | |||
|---|---|---|---|---|
|
Jun. 30, 2020
shares
|
Jun. 30, 2019
shares
|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2019
CNY (¥)
|
|
| Restricted Stock [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 892,083 | 55,430 | ||
| CHINA | ||||
| Restricted Cash and Cash Equivalents, Total | $ 2.9 | ¥ 20 | ||
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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