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Note 10 - Capital Stock and Stock-based Compensation (Tables)

12 Months Ended

Dec. 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, 2020			2,637,339			$	3.51				1,560,461			$	2.44				813,031			$	2.12
Granted			-				-				820,831				4.74				293,509				4.61
Exercised			(579,968	)			3.77				-				-				-				-
Vested (RSUs)			-				-				(1,167,473	)			2.88				(403,422	)			2.11
Cancelled/Forfeited			(652,555	)			4.24				(72,655	)			3.67				(6,179	)			2.98
Performance Factor Adjustment			-				-				-				-				163,216				2.98
Balance at December 31, 2021			1,404,816			$	3.10				1,141,164			$	3.57				860,155			$	3.13
Granted			-				-				918,870				4.64				320,272				5.08
Exercised			(40,267	)			2.64				-				-				-				-
Vested (RSUs)			-				-				(733,611	)			4.08				(401,308	)			2.11
Cancelled/Forfeited			(125,773	)			2.77				(232,622	)			4.44				(132,884	)			4.21
Balance at December 31, 2022			1,238,776			$	3.15				1,093,801			$	3.94				646,235			$	4.51

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Year Ended December 31,
(in thousands)		2022				2021
Weighted average shares outstanding - basic			41,413				40,343
Dilutive effect of equity awards			-				-
Weighted average shares outstanding - diluted			41,413				40,343
Shares excluded from diluted loss per share due to their anti-dilutive effect			3,661				4,274

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

				Options Outstanding																Options Exercisable
								Weighted																Weighted
								Average				Weighted												Average				Weighted
Range of								Remaining				Average				Aggregate								Remaining				Average				Aggregate
Exercise				Number				Contractual Life				Exercise				Intrinsic				Shares				Contractual Life				Exercise				Intrinsic
Price				Outstanding				in Years				Price				Value				Exercisable				in Years				Price				Value
$	1.78 - 2.62				135,342				6.3			$	1.89			$	119				102,381				6.2			$	1.91			$	88
	2.63 - 2.78				505,423				4.4				2.63				71				357,192				4.4				2.63				50
	2.79 - 3.24				135,077				6.6				2.93				-				135,077				6.6				2.93				-
	3.25 - 3.72				206,808				4.2				3.38				-				206,808				4.2				3.38				-
	3.73 - 5.51				256,126				3.2				4.76				-				238,222				3.0				4.83				-
$	1.78 - 5.51				1,238,776				4.6			$	3.15			$	190				1,039,680				4.5			$	3.25			$	138

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

		Year Ended December 31,
(in thousands)		2022				2021
Cost of revenues		$	121			$	118
Sales and marketing expenses			557				507
General and administrative expenses			3,487				3,416
Research and development expenses			246				128
Total stock-based compensation expenses		$	4,411			$	4,169

Black Scholes Option Pricing Model [Member]

Notes Tables

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

		2022				2021
Volatility			62.6	%			65.1	%
Risk-free interest rate			2.1	%			0.3	%
Correlation coefficient			41.5	%			35.7	%
Dividend yield			-	%			-	%

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