Leases - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	$ 2,321,000		$ 2,453,000
Operating lease liability	$ 2,491,000		$ 2,633,000
Lease renewal term	5 years
Right-of-use assets obtained in exchange for operating lease liabilities	$ 0	$ 1,000,000.0
Operating lease payments	$ 100,000	$ 100,000
Operating lease, weighted average remaining lease term	6 years 1 month 6 days
Finance lease, weighted average remaining lease term	4 years 4 months 24 days
Operating lease, weighted average discount rate	8.30%
Finance lease, weighted average discount rate	8.00%
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Weighted average discount rate	4.86%
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	9 years
Weighted average discount rate	8.60%