Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Components of operating leases [Abstract]
Operating lease cost	$ 564
Variable lease cost	23
Short-term lease cost	5
Total	592
Supplemental balance sheet information related to operating leases [Abstract]
Lease right of use asset	7,199
Lease liabilities	$ 7,202
Weighted average remaining lease term (years)	5 years 7 months 24 days
Weighted average discount rate	3.20%
Maturities of lease liabilities [Abstract]
Nine months ending December 31, 2019	$ 1,662
2020	1,711
2021	1,248
2022	963
2023	925
2024 and thereafter	1,423
Total lease payments	7,932
Less imputed interest	(730)
Total	$ 7,202