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Cash and Cash Equivalents and Marketable Securities - Summary of Cash and Cash Equivalents and Marketable Securities (Details)	Dec. 31, 2020 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 9,981,000
Unrealized Gains	0
Unrealized Losses	0
Fair Value	9,981,000
U.S. Treasury Notes
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	7,526,000
Unrealized Gains	0
Unrealized Losses	0
Fair Value	7,526,000
Money Market Funds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	2,455,000
Unrealized Gains	0
Unrealized Losses	0
Fair Value	$ 2,455,000

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