Note 5 - Accounts Receivable, Net (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss, Current	$ 3,760	$ 2,236
Accounts Receivable, Credit Loss Expense (Reversal)	2,394	0
Internet Advertising and TV Advertising [Member]
Accounts Receivable, Allowance for Credit Loss, Current	$ 3,760
Number of Months Past Due (Month)	6 months
Accounts Receivable, Credit Loss Expense (Reversal)	$ 1,760	1,760
Internet Advertising And TV Advertising Contractual Deposit [Member]
Accounts Receivable, Allowance for Credit Loss, Current		$ 2,240