Leases - Supplemental Information Related to Operating and Finance Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Leases
Operating cash flows from operating leases	$ 530
Operating cash flows from finance leases	86
Financing cash flows from finance leases	447
Leased assets obtained in exchange for new operating lease liabilities	$ 3,060
Weighted-Average Remaining Lease Term (in years):
Operating leases	6 years 11 months 23 days
Finance leases	10 months 21 days
Weighted-Average Discount Rate:
Operating leases	10.10%
Finance leases	9.96%