Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Acquired intangible assets consist of core deposit intangibles

Acquired intangible assets consist of core deposit intangibles ("CDI"), which are intangible assets arising from the purchase of deposits separately or from the acquistions of BANKshares in 2014 and Grand BANKshares in 2015. The change in balance for CDI is as follows:

	2015		2014		2013
	(In thousands)
Beginning of year	$	7,454	$	718	$	1,501
Acquired CDI		2,564		7,769		0
Amortization expense		(1,424)		(1,033)		(783)
End of year	$	8,594	$	7,454	$	718

Gross Carrying Amount and Accumulated Amortization of Intangible Asset

The gross carrying amount and accumulated amortization of the Company's intangible asset subject to amortization at December 31 is presented below.

	2015				2014
	Gross				Gross
	Carrying		Accumulated		Carrying		Accumulated
	Amount		Amortization		Amount		Amortization
	(In thousands)
Deposit base	$	19,827	$	(11,233)	$	17,263	$	(9,809)
	$	19,827	$	(11,233)	$	17,263	$	(9,809)