Leases - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 01, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	$ 3,446
Operating lease expense	1,500
Cash paid for operating lease liabilities	1,551
Right-of-use assets obtained in connection with new operating lease obligations	$ 4,913
Remaining lease term (years)	27 months
Discount rate	5.00%
Incremental minimum lease payments 2020	$ 1,997
Incremental minimum lease payments 2021	2,130
Incremental minimum lease payments 2022	535
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	1,997
2021	2,130
2022	535
Payments due	4,662
Less imputed interest	1,201
Total lease liability	$ 3,461
Operating Leases, Rent Expense		$ 1,300	$ 1,100
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset					$ 1,900
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Total lease liability				$ 3,000	$ 1,900