Commitments and Contingencies - Additional Information (Details) - USD ($)		3 Months Ended
	Jan. 01, 2019	Mar. 31, 2020	Mar. 31, 2019
Operating Lease, Weighted Average Discount Rate, Percent		9.90%
Operating Lease, Cost		$ 50,000	$ 50,000
Operating Lease, Payments		77,000	75,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 0	$ 538,000
Operating Lease Expiration Year		2022
ASU 2016-02
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 538,000