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Number of financial institutions which hold all cash, cash equivalents and investments of the Company.

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- Definition

The prepaid research and development expense.

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No definition available.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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- Definition

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

Amount of unrecognized tax benefits.

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Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.

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Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Institution segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 31, 2020 USD ($)
Accounting Policies
Number of operating segments \| segment	1
Number of financial institutions \| Institution	2
Short-term financing arrangement				$ 600
Other current liability	$ 0	$ 435
Prepaid expenses research and development	900	2,500
Charges incurred	0	0	$ 0
Uncertain tax positions	$ 0	$ 0	$ 0
Minimum [Member]
Accounting Policies
Equipment depreciation period	3 years
Maximum [Member]
Accounting Policies
Equipment depreciation period	5 years
Employees
Accounting Policies
Stock options, vesting period	4 years
Directors [Member]
Accounting Policies
Stock options, vesting period	1 year