Financial Instruments Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Liabilities Measured at Fair Value on Recurring Basis

The fair value hierarchy table for the periods indicated is as follows:

	Fair Value Measurement on a Recurring Basis at Reporting Date Using1
	Level-1 Inputs		Level-2 Inputs		Level-3 Inputs		Total
March 31, 2024
Senior Secured Convertible Note - April 2022	$	—	$	—	$	18,800	$	18,800
Senior Secured Convertible Note - September 2022		—		—		13,600		13,600
Lucid Senior Secured Convertible Note - March 2023		—		—		13,140		13,140
Totals	$	—	$	—	$	45,540	$	45,540

	Level-1 Inputs		Level-2 Inputs		Level-3 Inputs		Total
December 31, 2023
Senior Secured Convertible Note - April 2022	$	—	$	—	$	19,000	$	19,000
Senior Secured Convertible Note - September 2022		—		—		11,250		11,250
Lucid Senior Secured Convertible Note - March 2023		—		—		13,950		13,950
Totals	$	—	$	—	$	44,200	$	44,200

¹ There were no transfers between the respective Levels during the three months ended March 31, 2024.

Schedule of Fair Value Assumption Used

The estimated fair value of the April 2022 Senior Convertible Note, the September 2022 Senior Convertible Note and the Lucid March 2023 Senior Convertible Note as of each of March 31, 2024 and December 31, 2023, were computed using a Monte Carlo simulation of the present value of its cash flows using a synthetic credit rating analysis and a required rate-of-return, using the following assumptions:

	April 2022 Senior Convertible Note: March 31, 2024			September 2022 Senior Convertible Note: March 31, 2024			Lucid March 2023 Senior Convertible Note: March 31, 2024
Fair Value	$	18,800		$	13,600		$	13,140
Face value principal payable	$	17,602		$	8,782		$	10,936
Required rate of return		9.800	%		9.600	%		9.80	%
Conversion Price	$	75.00		$	75.00		$	5.00
Value of common stock	$	2.14		$	2.14		$	0.81
Expected term (years)		1.01			1.44			0.97
Volatility		105.00	%		105.00	%		55.00	%
Risk free rate		4.91	%		4.72	%		4.93	%
Dividend yield		—	%		—	%		—	%

	April 2022 Senior Convertible Note: December 31, 2023			September 2022 Senior Convertible Note: December 31, 2023			Lucid March 2023 Senior Convertible Note: December 31, 2023
Fair Value	$	19,000		$	11,250		$	13,950
Face value principal payable	$	17,602		$	9,062		$	11,019
Required rate of return		10.00% - 10.50	%		10.00% - 10.20	%		10.00	%
Conversion Price	$	75.00		$	75.00		$	5.00
Value of common stock	$	4.12		$	4.12		$	1.41
Expected term (years)		0.26 - 1.26			0.69 - 1.69			1.22
Volatility		85.00	%		85.00	%		60.00	%
Risk free rate		4.54% - 5.25	%		4.31% - 4.96	%		4.56	%
Dividend yield		—	%		—	%		—	%