Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares, Beginning Balance	7,997,004
Number of Shares, Options granted	92,447,500
Number of Shares, Options exercised	(52,557)
Number of Shares, Options expired	(183,793)
Number of Shares, Options forfeited	(1,732,576)
Number of Shares, Ending Balance	98,475,578	7,997,004
Number of Shares, Vested and Exercisable	4,063,544
Number of Shares, Vested and Exercisable and Expected to Vest	98,475,578
Weighted- Average Exercise Price, Beginning Balance	$ 1.78
Weighted- Average Exercise Price, Options granted	0.25
Weighted- Average Exercise Price, Options exercised	0.03
Weighted- Average Exercise Price, Options expired	4.29
Weighted- Average Exercise Price, Options forfeited	1.05
Weighted- Average Exercise Price, Ending Balance	0.35	$ 1.78
Weighted- Average Exercise Price, Vested and Exercisable	2.34
Weighted- Average Exercise Price, Vested and Exercisable and Expected to Vest	$ 0.35
Weighted- Average Remaining Contractual Life (Years)	9 years 4 months 24 days	7 years 6 months 10 days
Weighted- Average Remaining Contractual Life (Years), Options granted	9 years 8 months 1 day
Weighted- Average Remaining Contractual Life (Years)	9 years 4 months 24 days	7 years 6 months 10 days
Weighted- Average Remaining Contractual Life (Years), Vested and Exercisable	3 years 9 months 18 days
Weighted- Average Remaining Contractual Life (Years), Vested and Exercisable and Expected to Vest	9 years 4 months 24 days
Aggregate Intrinsic Value, Beginning Balance	$ 10
Aggregate Intrinsic Value, Options exercised	6
Aggregate Intrinsic Value, Options expired	1
Aggregate Intrinsic Value, Ending Balance	4	$ 10
Aggregate Intrinsic Value, Vested and Exercisable	3
Aggregate Intrinsic Value, Vested and Exercisable and Expected to Vest	$ 4