Note 6 - Prepayments and Deposit to Suppliers - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Prepayment and deposit to suppliers	$ 7,593	$ 7,559
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	1,066	934
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	5,019	5,185
Deposits and Prepayments for Other Investing Contracts [Member]
Prepayment and deposit to suppliers	1,000	1,000
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers	$ 508	$ 440