Significant Accounting Policies - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Restricted cash	$ 0		$ 20,000
Operating lease liabilities	1,773,000
Operating lease right-of-use assets	$ 1,715,000		$ 0
ASU 2016-02
Significant Accounting Policies [Line Items]
Operating lease liabilities		$ 2,000,000
Operating lease right-of-use assets		$ 2,000,000
Minimum
Significant Accounting Policies [Line Items]
Property plant and equipment estimated useful lives	three
Maximum
Significant Accounting Policies [Line Items]
Property plant and equipment estimated useful lives	five