Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of core deposit intangible and other intangible assets

The following table shows a summary of core deposit intangible and other intangible assets as of December 31.

(Dollars in thousands)	2017			2016
Core deposit intangibles:
Gross carrying amount	$	9,546		$	9,566
Less: accumulated amortization	(9,484		)	(9,143		)
Net carrying amount	$	62		$	423
Other intangibles:
Gross carrying amount	$	—		$	—
Less: accumulated amortization	—			—
Net carrying amount	$	—		$	—