Prepaid Expenses and Other Current Assets	9 Months Ended
	Sep. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid Expenses and Other Current Assets    As of September 30, 2020, the Company had prepaid expenses and other current assets of approximately $0.9 million. The Company's prepaid expenses are primarily for advance research and development payments, insurance, software licenses, prepaid rent, and other amounts that relate to future periods of service. Other current assets primarily consist of such items as other receivables and security deposits.Other Non-Current AssetsAs of September 30, 2020, the Company had non-current prepaid expenses of approximately $1.1 million. The Company's non-current prepaid expenses are for advance research and development payments which will be issued for projects that have estimated completion dates of more than one year.