Leases - Lease Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Lease liabilities	$ 4,238
Right-of-use assets	$ 4,237
Weighted average remaining lease term	9 years 3 months
Weighted average discount rate	3.22%
Operating lease cost	$ 211
Short-term lease cost	1
Total lease cost	212
Cash paid for amounts included in the measurement of lease liabilities	$ 209