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Note 5 - Stock-based Compensation

6 Months Ended

Jun. 30, 2024

Notes to Financial Statements

Shareholders' Equity and Share-Based Payments [Text Block]

5.	*STOCK-BASED COMPENSATION*

We recorded non-cash stock compensation expense in each period as follows:

		Three-month period ended								Six-month period ended
		June 30,				June 30,				June 30,				June 30,
		2024				2023				2024				2023
Stock options		$	152			$	153			$	308			$	291
Restricted stock			7				1				12				2
Total		$	159			$	154			$	320			$	293

We have stock options outstanding from various stock-based employee compensation plans for which we record compensation cost relating to share-based payment transactions in our financial statements. As of June 30, 2024, there was $545 of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of 1.0 years.

The following table summarizes stock option activity for the six-month period ended June 30, 2024:

		Number of Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (years)				Aggregate Intrinsic Value
Outstanding at January 1, 2024			1,250,595			$	7.10
Granted			3,460				6.84
Exercised			(288,675	)			7.10
Forfeited or expired			(91,482	)		$	8.79
Outstanding at June 30, 2024			873,898			$	6.92				4.34			$	3,231
Vested and expected to vest at June 30, 2024			775,281			$	7.00				4.18			$	2,805
Exercisable at June 30, 2024			417,867			$	7.56				2.87			$	1,277

Cash received from stock option exercises under our stock-based compensation plans for the three-month periods ended June 30, 2024 and June 30, 2023 was $1,251 and $62, respectively. Cash received from stock option exercises under our stock-based compensation plans for the six-month periods ended June 30, 2024 and June 30, 2023 was $1,936 and $62, respectively.

Restricted stock awards vest in equal annual installments over three (3) years. Unrecognized compensation cost related to unvested restricted shares at June 30, 2024 and June 30, 2023, respectively, was $25 and $1.