Debt (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The fair value and face value principal outstanding of the Senior Convertible Notes as of the dates indicated are as follows:

	Contractual Maturity Date	Stated Interest Rate			Conversion Price per Share		Face Value Principal Outstanding		Fair Value
April 2022 Senior Convertible Note	April 4, 2025		7.875	%	$	75.00	$	17,602	$	18,800
September 2022 Senior Convertible Note	September 8, 2025		7.875	%	$	75.00		8,782		13,600
Lucid March 2023 Senior Convertible Note	March 21, 2025		7.875	%	$	5.00		10,936		13,140
Balance as of March 31, 2024							$	37,320	$	45,540

	Contractual Maturity Date	Stated Interest Rate			Conversion Price per Share		Face Value Principal Outstanding		Fair Value
April 2022 Senior Convertible Note	April 4, 2025		7.875	%	$	75.00	$	17,602	$	19,000
September 2022 Senior Convertible Note	September 6, 2025		7.875	%	$	75.00		9,062		11,250
Lucid March 2023 Senior Convertible Note	March 21, 2025		7.875	%	$	5.00		11,019		13,950
Balance as of December 31, 2023							$	37,683	$	44,200

Schedule of Changes in Fair Value of Debt

The changes in the fair value of debt during the three month period ended March 31, 2024 is as follows:

	April 2022 Senior Convertible Note			September 2022 Senior Convertible Note			Lucid March 2023 Senior Convertible Note			Sum of Balance Sheet Fair Value Components			Other Income (expense)
Fair Value - December 31, 2023	$	19,000		$	11,250		$	13,950		$	44,200		$	—
Installment repayments – common stock		—			(280	)		(83	)		(363	)		—
Non-installment payments – common stock		—			(24	)		(436	)		(460	)		—
Change in fair value		(200	)		2,654			(291	)		2,163			(2,163	)
Fair Value at March 31, 2024	$	18,800		$	13,600		$	13,140		$	45,540
Other Income (Expense) - Change in fair value – three month period ended March 31, 2024													$	(2,163	)

The changes in the fair value of debt during the three month period ended March 31, 2023 is as follows:

	April 2022 Senior Convertible Note			September 2022 Senior Convertible Note		Lucid March 2023 Senior Convertible Note		Sum of Balance Sheet Fair Value Components			Other Income (expense)
Fair Value - December 31, 2022	$	22,000		$	11,650	$	—	$	33,650		$	—
Face value principal – issue date		—			—		11,111		11,111			—
Fair value adjustment – issue date		—			—		789		789			(789	)
Installment repayments – common stock		(1,335	)		—		—		(1,335	)		—
Non-installment payments – common stock		(166	)		—		—		(166	)		—
Change in fair value		251			—		—		251			(251	)
Fair Value at March 31, 2023	$	20,750		$	11,650	$	11,900	$	44,300
Other Income (Expense) - Change in fair value – three month period ended March 31, 2023											$	(1,040	)