Revenue - Summary of Disaggregated Revenue by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Revenue	$ 4,312	$ 4,192	$ 9,265
% of Revenue	100.00%	100.00%	100.00%
Recognized at a point in time [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 3,877	$ 2,735	$ 1,776
% of Revenue	90.00%	65.00%	19.00%
Recognized over time [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 435	$ 1,457	$ 7,489
% of Revenue	10.00%	35.00%	81.00%
North America [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 2,815	$ 2,965	$ 8,816
% of Revenue	65.00%	71.00%	95.00%
Europe [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 728	$ 1,085	$ 232
% of Revenue	17.00%	26.00%	3.00%
Asia [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 769	$ 142	$ 217
% of Revenue	18.00%	3.00%	2.00%