Note 4 - Stock-Based Compensation - Allocation of Stock-Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Stock-based compensation expense	$ 11,289	$ 11,936
Stock-based compensation capitalized to software and patent costs	128	136
Total stock-based compensation	11,417	12,072
Cost of Sales [Member]
Stock-based compensation expense	913	693
Selling and Marketing Expense [Member]
Stock-based compensation expense	3,842	2,691
Research and Development Expense [Member]
Stock-based compensation expense	2,646	1,590
General and Administrative Expense [Member]
Stock-based compensation expense	$ 3,888	$ 6,962

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Publisher FASB
-Name Accounting Standards Codification
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