Leases (Lease Cost) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 326
Finance lease cost:
Amortization of right-of-use assets	46
Interest expense on lease liabilities	6
Total lease cost	378
Cash payment information:
Operating cash used for operating leases	651
Operating cash used for finance leases	7
Financing cash used for finance leases	65
Total cash paid for amounts included in the measurement of lease liabilities	723
Supplemental non-cash information:
Operating lease liabilities arising from obtaining right-of-use assets	$ 0
Weighted-average remaining lease term (years) - operating leases	0 years
Weighted-average remaining lease term (years) - finance leases	2 years
Weighted-average discount rate - operating leases	0.00%
Weighted-average discount rate - finance leases	4.90%