Segment Reporting	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	10. Segment Reporting The Company operates and manages the business as one reportable and operating segment. The Company’s Chief Executive Officer and Chief Financial Officer act as the chief operating decision makers (“CODM”) of the Company. The CODM reviews the results of the Company on a consolidated basis, however in making certain operating decisions and assessing performance, the CODM will additionally review the disaggregated revenue results by product and geography. All of the Company’s long-lived assets are based in the United States.Revenue by product consisted of the following (in thousands): Year Ended December 31, 2021 2020 2019Systems $ 1,189 $ — $ —Cycle units 229 — —Total consolidated revenue $ 1,418 $ — $ —Revenue by geography consisted of the following (in thousands): Year Ended December 31, 2021 2020 2019North America $ 1,182 $ — $ —Rest of World 236 — —Total consolidated revenue $ 1,418 $ — $ —