Note 13 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

				Weighted Average
	Options on					Remaining		Aggregate
	Common			Exercise		Contractual		Intrinsic
	Shares			Price		Term		Value
Outstanding January 1, 2023		5,491,399		$	3.72		5.96	$	92
Granted		2,592,309		$	1.68
Exercised		(123,056	)	$	1.69
Forfeited, cancelled, expired		(3,303,017	)	$	3.80
Outstanding December 31, 2023		4,657,635		$	2.52		8.75	$	3,979
Exercisable December 31, 2023		1,160,580		$	4.02		7.86	$	274

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

	For the Year Ended
	December 31,
	2023			2022
Expected stock price volatility		76	%		49	%
Risk-free interest rate		4.21	%		2.47	%
Forfeiture rate		0	%		0	%
Expected dividend yield		0	%		0	%
Expected life of options – years		6.00			5.96
Weighted-average fair value of options granted	$	1.33		$	0.88

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

					Weighted
					Average		Weighted				Weighted
					Remaining		Average				Average
Range of			Number		Contractual		Exercise		Number		Exercise
Exercise Prices			Outstanding		Life (Years)		Price		Exercisable		Price
1.00	–	2.00		2,084,503		9.59	$	1.44		75,527	$	1.79
2.01	–	3.00		1,675,699		8.00	$	2.76		487,967	$	2.69
3.01	–	4.00		250,000		10.00	$	3.10		-	$	-
4.01	–	25.00		647,433		5.57	$	5.39		597,086	$	5.39

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

				Weighted Average		Weighted Average
	Service-Based			Grant Date		Vesting
	RSU's			Fair Value		Period (Years)
Unvested at January 1, 2022		269,303		$	6.47		2.0
Granted - service based		988,850		$	2.49
Vested		(268,548	)	$	4.13
Forfeited and cancelled		(67,273	)	$	6.45
Unvested at December 31, 2022		922,332		$	2.88		2.11
Granted - service based		1,289,784		$	1.41
Vested		(1,056,360	)	$	1.83
Forfeited and cancelled		(345,168	)	$	2.70
Unvested at December 31, 2023		810,588		$	1.73		2.52

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

	For the Year Ended
	December 31,
	2023		2022
Selling, general and administrative	$	1,696	$	2,684
Research and development		289		541
Total share-based expense	$	1,985	$	3,225