Note 6 - Prepayment and Deposit to Suppliers - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Prepayment and deposit to suppliers	$ 4,390	$ 4,567
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	866	1,077
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers	3,045	3,036
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers	$ 479	$ 454