Income Taxes - Narrative (Details)	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2015
Tax Cuts and Jobs Act (TCJA)
Increase in valuation allowance	$ 15,200,000
U.S. federal corporate tax rate (as a percent)	21.00%
Income Tax Uncertainties
Ownership change occurred, based off study			0
Uncertain tax positions reported	$ 0	$ 0

Represents the ownership change occurred under Section 382.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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

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