Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Laboratory and demonstration equipment | Minimum
Property and Equipment
Estimated useful life	2 years
Laboratory and demonstration equipment | Maximum
Property and Equipment
Estimated useful life	5 years
Computer equipment and software
Property and Equipment
Estimated useful life	3 years
Furniture and fixtures
Property and Equipment
Estimated useful life	7 years