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Note 5 - Stock-based Compensation

3 Months Ended

Mar. 31, 2023

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
		March 31,				March 31,
		2023				2022
Stock options		$	138			$	181
Restricted stock grants			1				8
Total		$	139			$	189

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 March 31, 2023, there was $553 of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of 1.2 years.

The following table summarizes stock option activity for the three-month period ended March 31, 2023:

		Number of Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (years)				Aggregate Intrinsic Value
Outstanding at January 1, 2023			1,425,693			$	6.72
Granted			12,500				4.07
Exercised			-				-
Forfeited or expired			(17,582	)		$	7.57
Outstanding at March 31, 2023			1,420,611			$	6.69				3.58			$	0
Vested and expected to vest at March 31, 2023			1,295,019			$	6.75				3.40			$	0
Exercisable at March 31, 2023			911,553			$	7.09				2.29			$	0

Cash received from stock option exercises under our stock-based compensation plans for the three-month periods ended March 31, 2023 and March 31, 2022 was $0 and $113, respectively.

Outstanding restricted shares vest in equal annual installments over three (3) years. Unrecognized compensation cost related to outstanding restricted shares at March 31, 2023 was $2.