Fair Value of Financial Measurements (Tables)

12 Months Ended

Dec. 31, 2022

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, 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

	December 31, 2021
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents - money market funds	$	45,006	$	—	$	—	$	45,006
	$	45,006	$	—	$	—	$	45,006
Liabilities:
Derivative liability	$	—	$	—	$	7,977	$	7,977
Warrant liability	—		252		—		252
	$	—	$	252	$	7,977	$	8,229

Schedule of Cash and Cash Equivalents

Cash equivalents 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

	December 31, 2021
(In thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Cash equivalents:
Money market funds	$	45,006	$	—	$	—	$	45,006
	$	45,006	$	—	$	—	$	45,006

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, 2022	December 31, 2021
Stock price	$1.63	$22.40
Volatility	95.0%	82.5%
Risk free rate	4.17%	1.18%
Exercise price	$106.50	$106.50
Expected life (in years)	3.44	4.44
Conversion periods	2 years-4 years	2-5 years
Future share price	$0.10-$405.60	$0.10-$340.50

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, 2022 and 2021 are as follows:

(In thousands)	December 31, 2022		December 31, 2021
Fair value, beginning of period	$	7,977	$	—
Issuance	—		61,823
Settlement	(392)
Change in fair value	(7,529)		(53,846)
Fair value, end of period	$	56	$	7,977