Leases - Addtional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Right-of-use asset		$ 45
Present value of future minimum lease payments		$ 45
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use asset			$ 300
Present value of future minimum lease payments			$ 300
Minimum
Lessee, Lease, Description [Line Items]
Non-cancelable primary lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable primary lease term	2 years