Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 700
Lease liabilities	$ 686
Weighted average remaining lease term	1 year 7 months 5 days
Weighted average discount rate (percent)	5.30%
Payment for operating leases	$ 500
Minimum
Lessee, Lease, Description [Line Items]
Lease term	15 months
Maximum
Lessee, Lease, Description [Line Items]
Lease term	50 months
ASU 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use assets		$ 1,000
Lease liabilities		$ 1,000