Operating Leases - Narrative (Details) $ in Thousands	Dec. 31, 2019 USD ($) office	Jan. 01, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Number of office under operating leases | office	2
Operating lease liabilities	$ 977
Right-of-use assets	$ 906
Weighted average remaining lease term for operating leases (in years)	1 year 11 months 19 days
Weighted average discount rate for operating leases (percent)	9.625%
ASU 2016-02 Topic 842
Lessee, Lease, Description [Line Items]
Operating lease liabilities		$ 1,400
Right-of-use assets		$ 1,300