Equity (Tables)

9 Months Ended

Sep. 30, 2024

Schedule of outstanding, reserved and authorized shares under share-based compensation plans

	September 30,	December 31,
(in thousands)	2024	2023
Outstanding options and restricted stock units	3,425	3,430
Reserved but unissued shares under the Plan	1,776	2,302
Total authorized shares under the Plan	5,201	5,732

Schedule of stock option activity

	September 30,
	2024
(in thousands, except per share data)	Options to Purchase Common Stock	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)
Outstanding at beginning of year	2,759	$	2.07	5.38
Granted	—	$	—	—
Exercised	—	$	—	—
Forfeited/Expired	(102)	$	0.88	—
Outstanding at end of period	2,657	$	2.11	4.83
Exercisable at end of period	1,947	$	1.75	4.40

Schedule of restricted stock unit activity

	September 30,
	2024
(in thousands, except per share data)	Number of Shares	Weighted Average Grant Date Fair Value
Nonvested at beginning of period	671	$	1.05
Granted	420	$	1.00
Vested	(323)	$	1.08
Forfeited	—	$	—
Nonvested at end of period	768	$	1.01

Schedule of share-based compensation activity

	September 30,
(in thousands)	2024
Reserved but unissued shares at beginning of period		188
Increases in the number of authorized shares		115
Grants		(36)
Reserved but unissued shares at end of period		267

Schedule of initial carrying value

(in thousands)		Allocated Amount
Common Stock	$	2,391
Public Warrants		1,831
	$	4,222

(in thousands)		Allocated Amount
Common Stock	$	865
Private Pre-Funded Warrants		1,214
Private Warrants		2,389
	$	4,468

(in thousands)		Allocated Amount
Common Stock	$	1,447
Participation Right Pre-Funded Warrants		580
Participation Right Private Warrants		2,250
	$	4,277

Schedule of public warrants and underwriter warrants

Stock price	$	0.79
Expected volatility		108.01%
Contractual/expected term (in years)		5.00
Risk-free interest rate		4.64%
Expected dividend yield		0%

Stock price	$	0.79
Expected volatility		108.01%
Contractual/expected term (in years)		5.00
Risk-free interest rate		4.64%
Expected dividend yield		0%

Stock price	$	0.65
Expected volatility		108.01%
Contractual/expected term (in years)		5.00
Risk-free interest rate		4.25%
Expected dividend yield		0%

Summary of warrants outstanding

	Warrants				Pre-Funded Warrants(1)
(in thousands, except per share data)	Number		Wtd. Avg. Exercise Price	Wtd. Avg. Remaining Life (in years)	Number		Wtd. Avg. Exercise Price
Beginning Balance	—		—	—	—		—
Granted	21,319	$	1.0535	4.99	4,499	$	0.0001
Exercised	—		—	—	—		—
Forfeited/Expired	—		—	—	—		—
Outstanding at Period End	21,319	$	1.0535	4.99	4,499	$	0.0001
(1) Pre-Funded warrants have no expiration date and only expire when exercised in full.

Restricted Stock Units (RSUs) [Member]

Schedule of compensation expense

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
(in thousands, except per share data)	2024		2023		2024			2023
Compensation Expense	$	27	$	15	$	369	$	225
Weighted Average Value Per Share	$	0.93	$	0.80	$	1.29	$	0.80

Equity Incentive Plan

Schedule of compensation expense

	For the Nine Months Ended
	September 30,
(in thousands, except per share data)	2024		2023
Fair value	$	326	$	234
Weighted Average Value Per Share	$	1.06	$	0.79

Consultant Stock Plan

Schedule of compensation expense

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
(in thousands, except per share data)	2024		2023		2024		2023
Compensation Expense	$	20	$	2	$	26	$	7
Weighted Average Value Per Share	$	0.72	$	0.66	$	0.74	$	0.66