Significant Accounting Policies - Additiona Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2017
Significant Accounting Policies [Line Items]
Restricted cash	$ 20,000		$ 20,000
Minimum
Significant Accounting Policies [Line Items]
Property plant and equipment estimated useful lives	three
Minimum | ASU 2016-02 | Scenario, Plan
Significant Accounting Policies [Line Items]
Operating lease, liability		$ 1,500,000
Maximum
Significant Accounting Policies [Line Items]
Property plant and equipment estimated useful lives	five
Maximum | ASU 2016-02 | Scenario, Plan
Significant Accounting Policies [Line Items]
Operating lease, liability		$ 2,500,000