Note 5 - Prepayments and Deposit to Suppliers - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Prepayment and deposit to suppliers *	[1]	$ 6,303	$ 7,559
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		599	934
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		4,207	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 *		$ 497	$ 440

[1] All of the VIEs' assets can be used to settle obligations of their primary beneficiary. Liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company’s general assets (Note 2).