Note 5 - Prepayments and Deposit to Suppliers, Net - Prepayments and Deposit to Suppliers (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Prepayment and deposit to suppliers *	[1]	$ 6,301	$ 6,980
Deposits to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		1,323	1,315
Prepayment to TV Ad and Internet Ad Resources Providers [Member]
Prepayment and deposit to suppliers *		4,121	4,361
Prepayment For Software System Development [Member]
Prepayment and deposit to suppliers *		591	1,062
Other Deposits and Prepayments [Member]
Prepayment and deposit to suppliers *		$ 266	$ 242

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