Intangible assets (Notes)

6 Months Ended

Jun. 30, 2018

Intangible Assets Disclosure [Text Block]

Intangible assets

The gross carrying amount and accumulated amortization by intangible asset class were as follows:



	(Dollars in thousands)
	June 30, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Gross Carrying Amount		Accumulated Amortization			Net Carrying Value
Trade names	$	7,874	$	(1,159	)	$	6,715	$	8,182	$	(957	)	$	7,225
Customer relationships	4,704		(456		)	4,248		4,911		(323		)	4,588
	$	12,578	$	(1,615	)	$	10,963	$	13,093	$	(1,280	)	$	11,813

Amortization expense of $0.4 million and $0.1 million related to intangible assets was recorded in General and administrative expenses for the six months ended June 30, 2018 and 2017, respectively.