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Note 7 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

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,				July 1,				June 30,				July 1,
		2019				2018				2019				2018
Stock options		$	142			$	186			$	316			$	309
Restricted stock grants			33				19				44				35
Total		$	175			$	205			$	360			$	344

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, 2019			1,576,087			$	6.58
Granted			-				-
Exercised			(104,587	)			4.56
Forfeited or expired			(6,916	)			4.59
Outstanding at June 30, 2019			1,464,584			$	6.74				3.03			$	2,917
Vested and expected to vest at June 30, 2019			1,409,866			$	6.69				2.94			$	2,860
Exercisable at June 30, 2019			1,189,793			$	6.13				2.65			$	2,704

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Tabular disclosure of share-based payment arrangement.

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