Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating Lease, Payments	$ 755
Lessor, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	4,800
Finance and Operating Lease Assets	4,948
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	1,759
Finance Lease, Liability, Payments, Remainder of Fiscal Year	68
Lease, Cost	780
Lessee, Operating Lease, Liability, Payments, Due Year Two	1,348
Finance Lease, Liability, Payments, Due Year Two	49
Lessee, Operating Lease, Liability, Payments, Due Year Three	803
Finance Lease, Liability, Payments, Due Year Three	38
Lessee, Operating Lease, Liability, Payments, Due Year Four	641
Finance Lease, Liability, Payments, Due Year Four	13
Lessee, Operating Lease, Liability, Payments, Due Year Five	586
Lessee, Operating Lease, Liability, Payments, Due after Year Five	2,737
Lessee, Operating Lease, Liability, Payments, Due	7,874
Finance Lease, Liability, Payments, Due	168
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(1,156)
Finance Lease, Liability, Undiscounted Excess Amount	(14)
Operating Lease, Liability	6,718
Finance Lease, Liability	154
Operating Lease, Liability, Noncurrent	3,300
Finance and Operating Lease Liabilities	$ 6,608
Operating Lease, Weighted Average Remaining Lease Term	7 years 1 month 5 days
Operating Lease, Weighted Average Discount Rate, Percent	4.70%
Finance Lease, Weighted Average Remaining Lease Term	2 years 3 months 10 days
Finance Lease, Weighted Average Discount Rate, Percent	6.90%
Finance Lease, Interest Payment on Liability	$ 12
Other Operating Income (Expense) [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Cost	755
Depreciation and amortization expense [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	23
Interest Expense [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Interest Expense	2
Property, Plant and Equipment, Type [Domain]
Lessor, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset	136
Accrued Expenses [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Liability, Current	1,836
Current portion of capital leases [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Liability, Current	81
Other longterm liabilities [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	4,618
Finance Lease, Liability, Noncurrent	73
Other Assets [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 4,812