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Income Taxes (Details 2) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)
Research and development tax credit carryforward | State and local tax authority | California Franchise Tax Board
Valuation allowance
Valuation allowance, deferred tax asset, increase (decrease)	$ (0.7)

X

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

+ Details

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Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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Period Type:

X

- Details

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