Subsequent Event (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jul. 22, 2019
Subsequent Event [Line Items]
Restructuring and impairment charges	$ 1,319	$ 1,319
Facility Closing [Member]
Subsequent Event [Line Items]
Restructuring and impairment charges	$ 1,319	$ 1,319
Maximum [Member] | Subsequent Event [Member] | Facility Closing [Member]
Subsequent Event [Line Items]
Expected Cost			$ 4,500
Minimum [Member] | Subsequent Event [Member] | Facility Closing [Member]
Subsequent Event [Line Items]
Expected Cost			$ 3,500