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Note 7 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 29, 2019

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 29 ,				September 30 ,				September 29 ,				September 30 ,
		2019				2018				2019				2018
Stock options		$	117			$	344			$	433			$	653
Restricted stock grants			42				19				86				54
Total		$	159			$	363			$	519			$	707

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			282,500				8.27
Exercised			(194,720	)			4.45
Forfeited or expired			(46,082	)			7.04
Outstanding at September 29, 2019			1,617,785			$	7.12				3.38			$	3,192
Vested and expected to vest at September 29, 2019			1,518,161			$	7.05				3.21			$	3,113
Exercisable at September 29, 2019			1,095,661			$	6.29				2.31			$	2,870

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Risk-Free Interest Rate			1.8	%
Volatility Factor			48	%
Weighted Average Expected Life (Years)			5.3
Dividends			0.0	%

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Tabular disclosure of share-based payment arrangement.

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