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Note 5 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

		Three-month period ended								Six-month period ended
		June 30,				June 30,				June 30,				June 30,
		2023				2022				2023				2022
Stock options		$	153			$	181			$	291			$	362
Restricted stock			1				3				2				11
Total		$	154			$	184			$	293			$	373

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

		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			(44,390	)		$	4.29
Forfeited or expired			(99,775	)		$	4.84
Outstanding at June 30, 2023			1,294,028			$	6.93				3.66			$	15,640
Vested and expected to vest at June 30, 2023			1,188,048			$	7.01				3.52			$	13,124
Exercisable at June 30, 2023			858,695			$	7.44				2.45			$	2,304

X

- Definition

Tabular disclosure of share-based payment arrangement.

+ References

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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 718
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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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