Prepaid Expenses and Other Current Assets	6 Months Ended
	Jun. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid Expenses and Other Current AssetsAs of June 30, 2020, the Company had prepaid expenses and other current assets of approximately $1.9 million. The Company's prepaid expenses are primarily for insurance, advance research and development payments, 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.