Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

A summary of the other intangible assets that continue to be subject to amortization is as follows:

(Dollars in thousands)	As of December 31, 2016
	Gross carrying		Accumulated		Net carrying
	amount		amortization		amount
Core deposit intangible assets	$	2,067	$	(1,137)	$	930
Lease intangible asset		350		(143)		207
Mortgage servicing rights		5,788		(2,939)		2,849
Total other intangible assets	$	8,205	$	(4,219)	$	3,986

	As of December 31, 2015
	Gross carrying		Accumulated		Net carrying
	amount		amortization		amount
Core deposit intangible assets	$	2,067	$	(855)	$	1,212
Lease intangible asset		350		(98)		252
Mortgage servicing rights		5,322		(2,482)		2,840
Total other intangible assets	$	7,739	$	(3,435)	$	4,304

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following sets forth estimated amortization expense for core deposit and lease intangible assets for the years ending December 31:

(Dollars in thousands)	Amortization
	expense
2017	$	289
2018		252
2019		214
2020		177
2021		121
Thereafter		84
Total	$	1,137

Schedule of Participating Mortgage Loans [Table Text Block]

The following table provides information on the principal balances of mortgage loans serviced for others:

(Dollars in thousands)	As of December 31,
	2016		2015
FHLMC	$	483,356	$	444,714
FHLB		11,393		14,039

Servicing Asset at Amortized Cost [Table Text Block]

Activity for mortgage servicing rights and the related valuation allowance follows:

(Dollars in thousands)	As of December 31,
	2016		2015
Mortgage servicing rights:
Balance at beginning of year	$	2,840	$	2,477
Additions		1,079		1,289
Amortization		(1,070)		(926)
Balance at end of year	$	2,849	$	2,840