Note 10 - Stock Based Compensation - Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
stock based compensation expense	$ 4,470	$ 4,153	$ 3,554
Cost of Sales [Member]
stock based compensation expense	94	183	155
Product Development [Member]
stock based compensation expense	745	692	608
Selling and Marketing Expense [Member]
stock based compensation expense	529	485	239
General and Administrative Expense [Member]
stock based compensation expense	$ 3,102	$ 2,793	$ 2,552