Note 6 - Prepayment and Deposit to Suppliers - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Prepayment and deposit to suppliers	$ 4,504	$ 4,508
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	598	612
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	3,243	2,996
Deposits and Prepayments for Potential Investing Contracts [Member]
Prepayment and deposit to suppliers	0	152
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers	$ 663	$ 748