Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Measurements

Schedule of assets and liabilities measured at fair value on a recurring basis

The following fair value hierarchy tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:

	Fair Value Measurement as of June 30, 2022
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets:
Restricted cash	$	50	$	—	$	—	$	50
Total	$	50	$	—	$	—	$	50
Liabilities:
Warrant liability	$	—	$	—	$	—	$	—
Total	$	—	$	—	$	—	$	—

	Fair Value Measurement as of December 31, 2021
	(in thousands)
	Level 1		Level 2		Level 3		Total
Assets:
Restricted cash	$	50	$	—	$	—	$	50
Total	$	50	$	—	$	—	$	50
Liabilities:
Warrant liability	$	—	$	—	$	2	$	2
Total	$	—	$	—	$	2	$	2

Schedule of reconciliation company's liabilities at fair value on recurring basis

	Warrant liability
	(In thousands)
Balance at December 31, 2021	$	2
Change in fair value upon extinguishment		(2)
Balance at June 30, 2022	$	—

Schedule of warrant to purchase common stock

		Weighted-average
	Amount	exercise price
Outstanding at December 31, 2021	2,501,419	$	4.35
Issued	427,390		8.88
Exercised	(1,040,187)		7.59
Outstanding at June 30, 2022	1,888,622	$	3.58

Schedule of weighted average assumptions

	December 31,
	2021
Risk-free interest rate		0.05	%
Expected volatility		174.54	%
Expected term (in years)		0.1	years
Expected dividend yield		—
Exercise price	$	8.00
Market value of common stock	$	2.30