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Note 11 - Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

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

						Weighted Average
		Options on Common Shares				Exercise Price				Remaining Contractual Term				Aggregate Intrinsic Value
Outstanding January 1, 2024			4,657,635			$	2.52				8.75			$	3,979
Granted			735,000			$	2.90				-				-
Exercised			(232,081	)		$	2.53				-				-
Forfeited, cancelled, expired			(1,359,495	)		$	3.01				-				-
Outstanding June 30, 2024			3,801,059			$	2.43				8.13			$	1,195-
Exercisable June 30, 2024			1,019,9810			$	4.09				4.81			$	20

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

		For the Six Months
		Ended June 30,
		2024				2023
Expected stock price volatility			76	%			49	%
Risk-free interest rate			3.97	%			3.64	%
Expected dividend yield			0	%			0	%
Expected life of options			6.00				6.66
Weighted-average fair value of options granted		$	2.90			$	0.55

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

		Service-Based RSU's				Weighted Average Grant Date Fair Value				Weighted Average Vesting Period (Years)
Unvested at January 1, 2024			810,588			$	1.73				2.52
Granted - service based			739,836			$	2.77				-
Vested			(159,805	)		$	2.85				-
Forfeited and cancelled			(237,727	)		$	2.26				-
Unvested at June 30, 2024			1,152,892			$	2.15				5.19

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

		Three Months Ended June 30,								Six Months Ended June 30,
		2024				2023				2024				2023
Selling, general and administrative		$	208			$	990			$	856			$	1,552
Research and development			34				231				62				297
Total share-based expense		$	242			$	1,221			$	918			$	1,849

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Tabular disclosure of share-based payment arrangement.

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