Fair Value - Schedule of Fair Value Liabilities, Activity for Grant Liability (Details) - Grant Liability - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value at beginning of period		$ 1,036,000	$ 936,000
Change in fair value of liability	$ 464,000	464,000	100,000
Fair value at end of period	$ 1,500,000	$ 1,500,000	$ 1,036,000