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Note 5 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

		Three-month period ended
		March 31,				March 31,
		2021				2020
Stock options		$	163			$	192
Restricted stock grants			21				38
Total		$	184			$	230

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, 2021			1,217,163			$	6.50
Granted			-				-
Exercised			(76,599	)			4.00
Forfeited or expired			(11,997	)			7.00
Outstanding at March 31, 2021			1,128,567			$	6.66			3.98			$	2,101
Vested and expected to vest at March 31, 2021			1,029,341			$	6.56			3.83			$	2,019
Exercisable at March 31, 2021			658,855			$	6.04			2.85			$	1,659

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- Definition

Tabular disclosure of share-based payment arrangement.

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