Leases (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Leases [Abstract]
Lease liabilities	$ 7,019	$ 7,019
Right-of-use assets	6,241	6,241
Short-term lease cost	33	107
Operating lease cost	$ 419	$ 1,259
Weighted average remaining lease term	6 years 9 months 18 days	6 years 9 months 18 days
Weighted average discount rate	5.50%	5.50%
Additional lease liabilities	$ 800	$ 800