Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Nature of Operations, Basis of Presentation and Consolidation (Details Textual)

v3.20.2
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