Related Party Transactions (Details) $ in Thousands		12 Months Ended
	Oct. 07, 2018 USD ($) agreement installment	Dec. 31, 2019 USD ($)	Mar. 31, 2021 USD ($)	Jul. 15, 2019 USD ($)	Apr. 15, 2019 USD ($)	Jan. 15, 2019 USD ($)	Oct. 15, 2018 USD ($)
Related Party Transaction [Line Items]
Number of additional agreements | agreement	3
Related party transactions, accrued reimbursement of IP expenses and sublicense royalty fees			$ 200
Executive vice president and chief scientific officer
Related Party Transaction [Line Items]
Total amount due	$ 1,000			$ 250	$ 250	$ 250	$ 250
Number of quarterly installment payments | installment	4
Installment paid		$ 1,000
Related party transactions, accrued reimbursement of legal expenses		$ 100