Note 5 - Prepayments and Deposit to Suppliers - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Prepayment and deposit to suppliers *	[1]	$ 4,657	$ 6,980
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		307	1,315
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		3,696	4,361
Prepayment For Software System Development [Member]
Prepayment and deposit to suppliers *			1,062
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers *		$ 654	$ 242

[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).