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Note 8 - Capital Stock and Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

		Stock Options								Restricted Stock Units								Market Condition RSU's
						Weighted
		Stock				Average				Restricted								Market
		Options				Exercise				Stock Units				Grant Date				Condition RSU's				Grant Date
		Outstanding				Price				Outstanding				Fair Value				Outstanding				Fair Value
Balance at December 31, 2020			2,637,339			$	3.51				1,560,461			$	2.44				813,031			$	2.12
Granted			-				-				714,793				4.39				293,509				4.61
Exercised			(310,169	)			4.01				-				-				-				-
Vested (RSUs)			-				-				(340,395	)			2.73				-				-
Cancelled/Forfeited			(474,309	)			4.64				(11,000	)			4.17				-				-
Balance at March 31, 2021			1,852,861			$	3.14				1,923,859			$	3.10				1,106,540			$	2.78

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

		Three Months Ended March 31,
(in thousands)		2021				2020
Cost of revenues		$	20			$	10
Sales and marketing expenses			93				51
General and administrative expenses			834				696
Research and development expenses			21				36
Total stock-based compensation expenses		$	968			$	793

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

		Three Months Ended March 31, 2021
		2021				2020
Basic			39,787,281				38,328,791
Dilutive effect of equity awards			-				-
Diluted			39,787,281				38,328,791

Monte-Carlo Valuation Simulation [Member]

Notes Tables

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

		2021
Volatility			65.1	%
Risk-free interest rate			0.3	%
Correlation coefficient			35.7	%
Dividend yield			-	%

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