Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Jan. 01, 2019
Lease, Cost [Abstract]
Operating lease expense	$ 502	$ 651	$ 1,165	$ 1,252
Cash paid for operating leases included in operating cash flows	537	$ 696	1,234	$ 1,341
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use asset	$ 3,760		$ 3,760		$ 3,853
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent		us-gaap:OtherLiabilitiesCurrent
Operating lease short-term liability included in other current liabilities	$ 1,768		$ 1,768		1,846
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent		us-gaap:OtherLiabilitiesNoncurrent
Operating lease long-term liability included in other long-term liabilities	$ 2,031		$ 2,031		$ 2,020
Weighted average remaining lease term (in years)	4 years 6 months 25 days		4 years 6 months 25 days		4 years 7 months 28 days
Weighted average discount rate used in calculating right-of-use asset	3.89%		3.89%		3.56%
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2020	$ 1,074		$ 1,074
2021	1,265		1,265
2022	540		540
2023	316		316
2024	209		209
2025 and thereafter	786		786
Total	4,190		4,190
Less interest	(380)		(380)
Present value of lease liabilities	$ 3,810		$ 3,810
Minimum
Lessee, Operating Lease, Description [Abstract]
Secured borrowing term			1 year
Maximum
Lessee, Operating Lease, Description [Abstract]
Secured borrowing term			20 years
Accounting Standards Update 2016-02
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use asset						$ 5,000