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Note 9 - Capital Stock and Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule Of Stock Options And Restricted Stock Units Activity Roll forward [Table Text Block]

		Stock Options								Restricted Stock Units								Market Condition RSUs
		Stock				Weighted				Restricted								Market
		Options				Average				Stock Units				Grant Date				Condition RSUs				Grant Date
		Outstanding				Exercise Price				Outstanding				Fair Value				Outstanding				Fair Value
Balance at December 31, 2019			2,266,122			$	3.93				1,590,450			$	2.27				529,491			$	1.67
Granted			894,154				2.61				1,001,113				2.73				332,622				2.98
Exercised			(9,994	)			2.56				-				-				-				-
Vested (RSUs)			-				-				(748,096	)			2.34				(233,056	)			1.47
Cancelled/Forfeited			(253,419	)			3.43				(89,864	)			3.27				(39,286	)			3.03
Market Condition RSU - Performance Factor Adjustment			-				-				-				-				233,055				1.47
Balance at September 30, 2020			2,896,863			$	3.56				1,753,603			$	2.46				822,826			$	2.13

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Three Months Ended September 30,								Nine Months Ended September 30,
		2020				2019				2020				2019
		(in thousands)
Cost of revenues		$	19			$	13			$	43			$	34
Sales and marketing expenses			92				39				205				68
General and administrative expenses			908				895				2,249				1,975
Research and development expenses			60				40				144				116
Total stock-based compensation expenses		$	1,079			$	987			$	2,641			$	2,193

Schedule of Weighted Average Number of Shares [Table Text Block]

		Three Months Ended								Nine Months Ended
		September 30 ,2020				September 30, 2019				September 30 ,2020				September 30, 2019
Basic			38,920,041				38,036,261				38,539,703				37,764,489
Dilutive effect of equity awards			-				-				-				-
Diluted			38,920,041				38,036,261				38,539,703				37,764,489

Monte-Carlo Valuation Simulation [Member]

Notes Tables

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

Volatility			80.6	%
Risk-free interest rate			0.2	%
Correlation coefficient			0.3
Dividend Yield			-	%

Black Scholes Option Pricing Model [Member]

Notes Tables

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

Volatility			58.3	%
Risk-free interest rate			0.3	%
Expected holding period (in years)			4.4
Dividend Yield			-	%

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