Balance Sheet Components (Liabilities measured at fair value) (Details)	12 Months Ended
Dec. 31, 2021
Measurement Input, Discount Rate \| BIOCORNEUM \| Future Royalty Payments
Fair Value Measurements
Fair value measurement discount rate	21.00%
Monte-Carlo Simulation Model \| Measurement Input, Volatility Rate
Fair Value Measurements
Fair value measurement, volatility rate	95.00%

Discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer regardless of when the transfer occurred.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719

Name:	us-gaap_AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration