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Note 5 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

		Three-month period ended								Nine-month period ended
		September 30, 2023				September 30, 2022				September 30, 2023				September 30, 2022
Stock options		$	130			$	176			$	421			$	538
Restricted stock			1				3				3				14
Total		$	131			$	179			$	424			$	552

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			(204,891	)		$	5.71
Forfeited or expired			(144,690	)		$	5.01
Outstanding at September 30, 2023			1,088,612			$	7.11				3.54			$	2,898
Vested and expected to vest at September 30, 2023			1,009,489			$	7.20				3.37			$	2,598
Exercisable at September 30, 2023			703,529			$	7.79				2.36			$	1,402

X

- Definition

Tabular disclosure of share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 718
-Publisher FASB
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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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