Fair Value of Financial Measurements (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value On a Recurring Basis

The following tables present information about our financial assets and liabilities measured at fair value on are recurring basis:

	December 31, 2023
(In thousands)	Level 1		Level 2		Level 3		Total
Liabilities:
Derivative liability	$	—	$	—	$	59	$	59
Warrant liability	—		17		—		17
	$	—	$	17	$	59	$	76

	December 31, 2022
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents - money market funds	$	1,681	$	—	$	—	$	1,681
	$	1,681	$	—	$	—	$	1,681
Liabilities:
Derivative liability	$	—	$	—	$	56	$	56
Warrant liability	—		9		—		9
	$	—	$	9	$	56	$	65

Schedule of Cash and Cash Equivalents

Cash equivalents as of December 31, 2022 were as follows:

	December 31, 2022
(In thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Cash equivalents:
Money market funds	$	1,681	$	—	$	—	$	1,681
	$	1,681	$	—	$	—	$	1,681

Schedule of Fair Value Significant Assumptions

The fair value of the derivative liability is considered a Level 3 valuation and is determined using a Binomial Lattice Option Pricing Model. The significant assumptions used in the model were:

	December 31, 2023	December 31, 2022
Stock price	$1.90	$1.63
Volatility	100.0%	95.0%
Risk free rate	4.51%	4.17%
Exercise price	$106.50	$106.50
Expected life (in years)	2.95	3.44
Conversion periods	5 months-3 years	2 years-4 years
Future share price	$5.90-$594.30	$0.10-$405.60

Schedule of Change in the Fair Value of the Level 3 Derivative Liability

The change in the fair value of the Level 3 derivative liability for the years ended December 31, 2023 and 2022 are as follows:

(In thousands)	December 31, 2023		December 31, 2022
Fair value, beginning of period	$	56	$	7,977
Settlement	—		(392)
Change in fair value	3		(7,529)
Fair value, end of period	$	59	$	56

Schedule of Gain (Loss) Fair Value Changes in Warrants

Gain or loss due to the fair value changes in the 2021 Private Placement Warrants and the 2021 PIPE Warrants, both of which are included in other income, net in our consolidated statements of operations, consisted of the following:

(In thousands)	For the year ended December 31,
	2023		2022
Gain (loss) on fair value of Private Placement warrant liabilities	$	(5)	$	158
Gain (loss) on fair value of PIPE warrant liabilities	(3)		84
	$	(8)	$	242