Fair Value of Financial Measurements (Tables)

3 Months Ended

Mar. 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:

	March 31, 2023
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents - money market funds	$	96	$	—	$	—	$	96
	$	96	$	—	$	—	$	96
Liabilities:
Derivative liability	$	—	$	—	$	30	$	30
Warrant liability	—		17		—		17
	$	—	$	17	$	30	$	47

	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 March 31, 2023 and December 31, 2022 were as follows:

	March 31, 2023
(In thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Cash equivalents:
Money market funds	$	96	$	—	$	—	$	96
Total cash equivalents	$	96	$	—	$	—	$	96

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

	March 31, 2023	December 31, 2022
Stock price	$1.49	$1.63
Volatility	95.0%	95.0%
Risk free rate	3.79%	4.17%
Exercise price	$106.50	$106.50
Expected life (in years)	3.19	3.44
Conversion periods	2-4 years	2-4 years
Future share price	$0.10-$303.10	$0.10-$405.60