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Share-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options, Outstanding - January 1, 2024	2,041,000
Stock Options, Granted	1,698,000
Stock Options, Forfeited/canceled	(62,000)
Stock Options, Exercised	(6,000)
Stock Options, Outstanding - March 31, 2024	3,671,000	2,041,000
Stock Options Exercisable - March 31, 2024	1,375,000
Weighted Average Exercise Price, Outstanding - January 1, 2024	$ 3.36
Weighted Average Exercise Price, Granted	1.72
Weighted Average Exercise Price, Forfeited/canceled	2.5
Weighted Average Exercise Price, Exercised	0.52
Weighted Average Exercise Price, Outstanding - March 31, 2024	2.62	$ 3.36
Weighted Average Exercise Price, Exercisable - March 31, 2024	$ 3.91
Weighted Average Contractual Life (Years), Outstanding	8 years 2 months 12 days	6 years 10 months 24 days
Weighted Average Contractual Life (Years), Exercisable - March 31, 2024	5 years 9 months 18 days
Aggregate Intrinsic Value, Outstanding - January 1, 2023	$ 964
Aggregate Intrinsic Value, Outstanding - March 31, 2024	557	$ 964
Aggregate Intrinsic Value, Exercisable - March 31, 2024	$ 485
Bonus-To-Options Program
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options, Outstanding - January 1, 2024	1,050,000
Stock Options, Granted	341
Stock Options, Forfeited/canceled	(27,000)
Stock Options, Outstanding - March 31, 2024	1,364,000	1,050,000
Stock Options Exercisable - March 31, 2024	1,330,000
Weighted Average Exercise Price, Outstanding - January 1, 2024	$ 2.81
Weighted Average Exercise Price, Granted	1.46
Weighted Average Exercise Price, Forfeited/canceled	24.34
Weighted Average Exercise Price, Outstanding - March 31, 2024	2.04	$ 2.81
Weighted Average Exercise Price, Exercisable - March 31, 2024	$ 2.06
Weighted Average Contractual Life (Years), Outstanding	8 years 8 months 12 days	8 years 4 months 24 days
Weighted Average Contractual Life (Years), Exercisable - March 31, 2024	8 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding - January 1, 2023	$ 22
Aggregate Intrinsic Value, Outstanding - March 31, 2024	$ 8	$ 22

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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