Note 10 - Stock Incentive Plan (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

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

				Weighted		Weighted
				Average		Average
	Options			Exercise Price		Contractual		Aggregate
	Activity			(per share)		Term (years)		Intrinsic Value
Balance at January 1, 2024		1,234,778		$	4.52		7.91	$	30,000
Granted		799,188		$	0.73		—	$	—
Exercised/released (1)		(300,250	)	$	1.12		—	$	—
Cancelled/forfeited		(103,288	)	$	1.61		—	$	—
Balance at December 31, 2024		1,630,428		$	3.47		7.77	$	8,770,109
Exercisable at December 31, 2024		516,040		$	7.02		5.81	$	1,573,308

				Weighted		Weighted
				Average		Average
	Options			Exercise Price		Contractual		Aggregate
	Activity			(per share)		Term (years)		Intrinsic Value
Balance at January 1, 2023		921,657		$	6.86		8.01	$	—
Granted		700,000		$	0.89		—	$	—
Exercised/released		—		$	—		—	$	—
Cancelled/forfeited		(386,879	)	$	3.54		—	$	—
Balance at December 31, 2023		1,234,778		$	4.52		7.91	$	30,000
Exercisable at December 31, 2023		670,624		$	4.80		7.28	$	—

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

	Year Ended
	December 31,
	2024			2023
Weighted-average expected volatility		61.92	%		59.43	%
Weighted-average expected term (years)		6.50			5.71
Weighted-average expected risk-free interest rate		4.27	%		3.87	%
Dividend yield		—			—
Weighted-average fair value of options granted	$	0.46		$	0.57

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

				Weighted Average		Weighted Average
				Grant Date Fair		Remaining Vesting		Aggregate
	Number of RSUs			Value (per share)		Term (years)		Fair Value
Balance at January 1, 2024		771,885		$	1.77		2.18	$	1,480,161
Granted		828,650		$	4.43		—	$	—
Exercised/released (1)		(422,471	)	$	1.55		—	$	—
Cancelled/forfeited		(62,566	)	$	1.27		—	$	—
Balance at December 31, 2024		1,115,498		$	3.85		3.26	$	4,294,241

				Weighted Average		Weighted Average
				Grant Date Fair		Remaining Vesting		Aggregate
	Number of RSUs			Value (per share)		Term (years)		Fair Value
Balance at January 1, 2023		504,420		$	4.22		2.94	$	2,127,734
Granted		745,000		$	0.81		—	$	—
Exercised/released (1)		(200,085	)	$	3.86		—	$	—
Cancelled/forfeited		(277,450	)	$	2.14		—	$	—
Balance at December 31, 2023		771,885		$	1.77		2.18	$	1,480,161

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

				Weighted Average		Weighted Average
				Grant Date Fair		Remaining Vesting		Aggregate
	Number of MSUs			Value (per share)		Term (years)		Fair Value
Balance at January 1, 2024		621,314		$	1.57		0.60	$	977,558
Granted		—		$	—		—	$	—
Exercised/released		(300,000	)	$	0.14		—	$	—
Cancelled/forfeited		(321,314	)	$	2.91		—	$	—
Balance at December 31, 2024		—		$	—		—	$	—

				Weighted Average		Weighted Average
				Grant Date Fair		Remaining Vesting		Aggregate
	Number of MSUs			Value (per share)		Term (years)		Fair Value
Balance at January 1, 2023		31,083		$	43.53		0.60	$	1,353,043
Granted		600,000		$	0.08		—	$	—
Exercised/released		—		$	—		—	$	—
Cancelled/forfeited		(9,769	)	$	43.53		—	$	—
Balance at December 31, 2023		621,314		$	1.57		0.60	$	977,558

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

	Year Ended		Unrecognized Compensation Cost Related to Non-Vested Awards as of		Weighted-Average Remaining Vesting Period as of
	December 31, 2024		December 31, 2024		December 31, 2024 (years)
Stock options	$	345,129	$	619,880		2.73
RSUs		1,264,920		3,464,390		3.55
MSUs		27,739		—		—
Total stock-based compensation	$	1,637,788	$	4,084,270		3.42
Cost of goods sold	$	3,650	$	9,648		3.88
General and administrative		1,494,315		3,807,481		3.49
Sales and marketing		139,823		267,141		4.41
Total stock-based compensation	$	1,637,788	$	4,084,270		3.42

	Year Ended			Unrecognized Compensation Cost Related to Non-Vested Awards as of		Weighted-Average Remaining Vesting Period as of
	December 31, 2023			December 31, 2023		December 31, 2023 (years)
Stock options	$	456,902		$	654,313		2.36
RSUs		658,717			1,099,972		2.17
MSUs		(23,473	)		34,281		0.57
Total stock-based compensation	$	1,092,146		$	1,788,566		2.21
Cost of goods sold	$	503		$	2,976		1.62
General and administrative		849,784			1,666,980		2.29
Sales and marketing		241,859			118,610		0.99
Total stock-based compensation	$	1,092,146		$	1,788,566		2.21