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

3 Months Ended

Mar. 31, 2022

Notes Tables

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

						Weighted
		Stock				Average				Time-Based								Performance-
		Options				Exercise				RSUs				Grant Date				Based RSUs				Grant Date
		Outstanding				Price				Outstanding				Fair Value				Outstanding				Fair Value
Balance at December 31, 2021			1,404,816			$	3.10				1,141,164			$	3.57				860,155			$	3.13
Granted			-				-				518,163				5.52				205,122				5.92
Exercised			(10,987	)			2.78				-				-				-				-
Vested (RSUs)			-				-				(151,185	)			2.30				-				-
Cancelled/Forfeited			(3,126	)			3.79				(12,917	)			3.07				-				-
Balance at March 31, 2022			1,390,703			$	3.10				1,495,225			$	4.37				1,065,277			$	3.67

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

		Three Months Ended March 31,
(in thousands)		2022				2021
Cost of revenues		$	36			$	20
Sales and marketing expenses			154				93
General and administrative expenses			791				834
Research and development expenses			42				21
Total stock-based compensation expenses		$	1,023			$	968

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

		Three Months Ended March 31,
(in thousands)		2022				2021
Basic			41,219				39,787
Dilutive effect of equity awards			-				-
Diluted			41,219				39,787

Black Scholes Option Pricing Model [Member]

Notes Tables

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

		2022
Volatility			65.1	%
Risk-free interest rate			1.4	%
Correlation coefficient			38.5	%
Dividend yield			-	%

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