Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating Lease, Payments	$ 592		$ 2,012
Lessor, Lease, Description [Line Items]
Finance and Operating Lease Assets	6,793		6,793
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	641		641
Finance Lease, Liability, Payments, Remainder of Fiscal Year	38		38
Lease, Cost	592	$ 1,668
Lessee, Operating Lease, Liability, Payments, Due Year Two	2,002		2,002
Finance Lease, Liability, Payments, Due Year Two	99		99
Lessee, Operating Lease, Liability, Payments, Due Year Three	1,648		1,648
Finance Lease, Liability, Payments, Due Year Three	89		89
Lessee, Operating Lease, Liability, Payments, Due Year Four	1,177		1,177
Finance Lease, Liability, Payments, Due Year Four	63		63
Lessee, Operating Lease, Liability, Payments, Due Year Five	605		605
Finance Lease, Liability, Payments, Due Year Five	36		36
Lessee, Operating Lease, Liability, Payments, Due after Year Five	2,752		2,752
Finance Lease, Liability, Payments, Due after Year Five	10		10
Lessee, Operating Lease, Liability, Payments, Due	8,825		8,825
Finance Lease, Liability, Payment, Due	335		335
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(1,137)		(1,137)
Finance Lease, Liability, Undiscounted Excess Amount	(35)		(35)
Operating Lease, Liability	7,688		7,688
Finance Lease, Liability	300		300
Finance and Operating Lease Liabilities	$ 7,988		$ 7,988
Operating Lease, Weighted Average Remaining Lease Term	6 years		6 years
Operating Lease, Weighted Average Discount Rate, Percent	4.10%		4.10%
Finance Lease, Weighted Average Remaining Lease Term	3 years 6 months 15 days		3 years 6 months 15 days
Finance Lease, Weighted Average Discount Rate, Percent	5.80%		5.80%
Finance Lease, Interest Payment on Liability	$ 25		$ 186
Other Operating Income (Expense) [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Cost	564		1,574
Depreciation and amortization expense [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	22		76
Interest Expense [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Interest Expense	6		18
Property, Plant and Equipment, Type [Domain]
Lessor, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset	383		383
Accrued Expenses [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Liability, Current	1,929		1,929
Current portion of capital leases [Member]
Lessor, Lease, Description [Line Items]
Finance Lease, Liability, Current	99		99
Other longterm liabilities [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	5,759		5,759
Finance Lease, Liability, Noncurrent	201		201
Other Assets [Member]
Lessor, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 6,410		$ 6,410