Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Line Items]
Provision for income taxes		$ 0
Net operating loss carryforward percentage		80.00%	80.00%	80.00%
Deferred tax liabilities	$ 0	$ 0	$ 0
Valuation allowance increased	200,000	9,500,000
Net operating loss carryforward	0		0
Tax credit carryforwards	$ 0	672,000	$ 0
Federal
Income Tax Disclosure [Line Items]
Net operating loss carryforward		27,700,000
Tax credit carryforwards		$ 900,000
Tax credit carryforward expiration or due date year		2040
Minimum
Income Tax Disclosure [Line Items]
Tax Cuts and Jobs Act, adjusted taxable income limitation percentage		0.30	0.30
Maximum
Income Tax Disclosure [Line Items]
Tax Cuts and Jobs Act, adjusted taxable income limitation percentage		0.50	0.50
Maximum | State
Income Tax Disclosure [Line Items]
Tax credit carryforwards		$ 100,000