Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
Note 1 - Nature of Operations, Basis of Presentation and Consolidation (Details Textual)
3 Months Ended
Mar. 31, 2023
USD ($)
shares
Restricted Stock [Member]  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares 169,690
UNITED STATES  
Cash, Uninsured Amount $ 803,000
HONG KONG  
Cash, Uninsured Amount 1,800,000
CHINA  
Restricted Cash $ 4,100,000