Note 5 - Accounts Receivable, Net (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss, Current		$ 2,337		$ 2,236
Accounts Receivable, Credit Loss Expense (Reversal)		947	$ 0
Internet Advertising And TV Advertising Contractual Deposit [Member]
Accounts Receivable, Allowance for Credit Loss, Current		2,340		$ 2,240
Accounts Receivable, Credit Loss Expense (Reversal)		$ 330	$ 0
Internet Advertising and TV Advertising [Member]
Number of Months Past Due (Month)		6 months
Accounts Receivable, Credit Loss Expense (Reversal)	$ 0