Note 11 - Share-based Compensation (Tables)

9 Months Ended

Sep. 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		1,495,000		$	2.24		-		-
Exercised		(232,081	)	$	2.53		-		-
Forfeited, cancelled, expired		(1,928,925	)	$	3.00		-		-
Outstanding September 30, 2024		3,991,629		$	2.18		8.64	$	180
Exercisable September 30, 2024		1,200,536		$	3.33		6.96	$	40

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

	For the Nine Months
	Ended September 30,
	2024			2023
Expected stock price volatility		76	%		49	%
Risk-free interest rate		3.79	%		3.64	%
Expected dividend yield		0	%		0	%
Expected life of options		6.00			6.66
Weighted-average fair value of options granted	$	1.48		$	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		800,336		$	2.71		-
Vested		(385,081	)	$	2.11		-
Forfeited and cancelled		(237,727	)	$	2.26		-
Unvested at September 30, 2024		988,116		$	2.26		3.26

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

	Three Months Ended September 30,					Nine Months Ended September 30,
	2024		2023			2024		2023
Selling, general and administrative	$	878	$	(149	)	$	1,735	$	1,404
Research and development		18		(53	)		79		244
Total share-based expense	$	896	$	(202	)	$	1,814	$	1,648