Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Property, Machinery and Equipment, Net

The estimated useful lives of fixed assets by asset category are described below:

Fixed Assets	Estimated Useful Life
Computer equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Lesser of estimated useful life or remaining lease term (one year to seven years)
Machinery and equipment	Seven years

Property, machinery and equipment, net consisted of the following:

(in thousands)	December 31, 2022		December 31, 2021
Computer equipment	$	10	$	178
Furniture and fixtures	—		206
Leasehold improvements	2,281		2,693
Machinery and equipment	3,411		3,332
Construction in-progress	106		247
Property, machinery and equipment, gross	5,808		6,656
Less: accumulated depreciation	(1,792)		(1,827)
Property, machinery and equipment, net	$	4,016	$	4,829

Schedule of Changes in Fair Value of Liabilities

The change in fair values of liabilities subject to recurring remeasurement were as follows:

(in thousands)	Level	Fair value as of December 31, 2021		Change in Fair Value		Fair value as of December 31, 2022
Warrant Liability	3	$	5,749	$	(5,185)	$	564
Share Repurchase Liability	3	—		10,000		10,000
Liability-Classified Performance Awards	3	70		(70)		—
Total		$	5,819	$	4,745	$	10,564

Schedule of Fair Value Inputs

Key assumptions for the Black-Scholes model used to determine the fair value of warrants outstanding as of December 31, 2022 were as follows:

Warrant term (years)	3.61
Volatility	76.00	%
Risk-free rate	4.11	%
Dividend yield	0.00	%

The assumptions used under the Black-Scholes-Merton Option Pricing model and weighted average fair value of options on the grant date are as follows:

	Year Ended December 31,
	2022	2021
Expected term (in years)	5.8	N/A
Risk-free interest rate	2.35%	N/A
Expected volatility	61.90%	N/A
Dividend yield	0.00%	N/A
Fair value on grant date	$1.46	N/A