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Note 7 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

		Year ended December 31
		201 9				201 8
Stock options		$	623			$	817
Restricted stock grants			130				73
Total		$	753			$	890

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

		Year ended December 31
		2019				2018
Risk-free interest rate			1.8	%			2.6	%
Volatility factor			48.3	%			46.8	%
Weighted average expected life (years)			5.3				5.0
Forfeiture rate			10.0	%			10.0	%
Dividends			0.0	%			0.0	%

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

Year e nded December 31, 201 9
		Number of share s				Weighted average exercise price per share				Weighted average remaining contractual term				Aggregate intrinsic value
Shares under option – January 1			1,576,087			$	6.58
Options granted			282,500				8.27
Options exercised			(208,881	)			4.45
Options forfeited or expired			(107,914	)			10.93
Shares under option – December 31			1,541,792			$	6.88				3.21			$	1,991
Vested and expected to vest - December 31			1,445,563			$	6.79				3.04			$	1,959
Options exercisable – December 31			1,083,581			$	6.28				2.09			$	1,872

Year e nded December 31, 201 8
		Number of shares				Weighted average exercise price per share
Shares under option – January 1			1,860,211			$	5.96
Options granted			217,500				9.68
Options exercised			(422,793	)			4.49
Options forfeited or expired			(78,831	)			11.75
Shares under option – December 31			1,576,087			$	6.58
Options exercisable – December 31			1,064,127			$	5.89

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

					Option outstanding												Options exercisable
Range of exercise prices					Number of outstanding options				Weighted- average remaining contractual life				Weighted- average exercise price				Number of options exercisable				Weighted- average exercise price
$3.22	-	$3.99				244,377				1.70			$	3.82				244,377			$	3.82
$4.00	-	$5.99				336,331				3.81				4.95				269,601				4.79
$6.00	-	$9.99				761,084				4.02				7.89				369,603				6.99
$10.00						200,000				1.00				10.00				200,000				10.00
$3.22	-	$10.00				1,541,792				3.21			$	6.88				1,083,581			$	6.28

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