Quarterly report [Sections 13 or 15(d)]

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual)

v3.25.3
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual)
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
shares
Sep. 30, 2025
USD ($)
shares
Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares 3,877 8,337
HONG KONG    
Cash, Uninsured Amount $ 844,000 $ 844,000
CHINA    
Restricted Cash $ 3,000,000 $ 3,000,000