Commitments and Contingencies - Operating Leases (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($) product	Mar. 31, 2021 USD ($)
Commitments and Contingencies.
Number of production facilities under operating lease	2
Number of administrative and research facility under operating lease	1
Rent expense \| $	$ 0.3	$ 0.3

Amount of operating lease expense. Excludes sublease income.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration