Intangible Assets - Consolidated balance sheet (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Amortizable intangible assets:
Gross Carrying Amount	$ 3,500	$ 3,500
Accumulated Amortization	(2,003)	(1,828)
Net	$ 1,497	1,672
Customer Relationships [Member]
Amortizable intangible assets:
Weighted Average Life (Years)	15 years
Gross Carrying Amount	$ 3,500	3,500
Accumulated Amortization	(2,003)	(1,828)
Net	$ 1,497	$ 1,672