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Note 11 - Equity Incentive Plan (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
		2024				2023				2024				2023
Cost of revenue		$	173			$	167			$	299			$	351
Research & development			572				653				1,102				1,170
Selling, general & administrative			3,146				3,330				6,080				6,346
Total stock-based compensation expense		$	3,891			$	4,150			$	7,481			$	7,867

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

										Weighted
										Average
						Weighted				Remaining				Aggregate
						Average				Contractual				Intrinsic
		Number of				Exercise				Term				Value
		Options				Price				(in years)				(in thousands)
Outstanding as of December 31, 2023			1,812,729			$	33.42							$	127
Granted			527,250			$	28.18
Exercised			(3,556	)		$	21.96							$	14
Forfeited and canceled			(66,010	)		$	39.40							$	30
Outstanding as of June 30, 2024			2,270,413			$	32.05				7.7			$	300
Vested, June 30, 2024			1,291,554			$	34.79				6.6			$	55
Vested or expected to vest, June 30, 2024			2,270,413			$	32.05				7.7			$	300

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Six Months Ended
		June 30,
		2024												2023
Risk free interest rate			3.9	%			-				4.6	%			3.5	%			-				4.3	%
Expected volatility			44.5	%			-				48.2	%			48.7	%			-				49.4	%
Expected life (years)							4.5												4.5
Expected dividend yield							0.0	%											0.0	%
Fair value per option						$	10.52											$	11.74

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

						Weighted
		Number of				Average
		Shares				Fair Value
Outstanding as of December 31, 2023			771,358			$	27.19
Granted			445,373			$	26.68
Vested			(298,573	)		$	27.67
Forfeited and cancelled			(38,793	)		$	26.93
Outstanding as of June 30, 2024			879,365			$	26.87

X

- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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