Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Information pertaining to the activity in the Plan is as follows:

Obligations and funded status at December 31:

	2015			2014
	(Dollars in thousands)
Change in projected benefit obligation
Projected benefit obligation at beginning of year	$	18,103		$	15,963
Interest cost	680			757
Actuarial (gain) loss	(809		)	2,460
Benefits paid	(797		)	(1,077		)
Projected benefit obligation at end of year	17,177			18,103
Change in fair value of plan assets
Fair value of plan assets at beginning of year	17,300			18,000
Actuarial (loss) gain on plan assets	(786		)	377
Benefits paid	(797		)	(1,077		)
Fair value of plan assets at end of year	15,717			17,300
Net liability for pension benefits	$	(1,460	)	$	(803	)
	2015			2014
	(Dollars in thousands)
Accumulated benefit obligation at December 31	$	17,177		$	18,103

Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension benefit for 2015, 2014 and 2013 consisted of the following components:

	2015			2014			2013
	(Dollars in thousands)
Interest cost on projected benefit obligation	$	680		$	757		$	702
Expected return on plan assets	(1,144		)	(1,193		)	(1,010		)
Amortization of net actuarial loss	56			—			189
Net periodic pension benefit	$	(408	)	$	(436	)	$	(119	)

Plan Asset Allocations by Asset Category based on Fair Values [Table Text Block]

Union's Plan asset allocations at December 31, 2015 and 2014, by asset category based on their fair values were as follows:

Asset Category	2015		2014
Cash and cash equivalents	3.5	%	3.4	%
Interest bearing deposits in banks	0.8	%	1.3	%
Debt securities	31.2	%	28.7	%
Equity securities	64.3	%	66.4	%
Mutual and exchange traded funds	0.2	%	0.2	%
Total	100.0	%	100.0	%

Plan Asset Allocation, Mix of Investments [Table Text Block]

In order to achieve this goal the investment objective is to maintain a mix of growth and income investments allocated as follows, with no more than 20% of the equity portion of the portfolio invested in foreign equities:

Equity securities and international mutual funds	55-70%
Debt securities	30-45%
Cash and cash equivalents	0-5%

Schedule of Allocation of Plan Assets [Table Text Block]

The fair values of the Plan's investments at December 31, 2015 and 2014, segregated by fair value hierarchy level, are summarized below:

			Fair Value Measurements
			December 31, 2015
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Interest bearing deposits in banks	$	131	$	—	$	131	$	—
U.S. Government	341		341		—		—
Corporate bonds	4,569		2,003		2,566		—
Marketable equity securities:
Information technology	1,544		1,544		—		—
Financial	1,368		1,368		—		—
Industrials	945		945		—		—
Healthcare	1,746		1,746		—		—
Consumer	3,346		3,346		—		—
Energy	1,154		1,154		—		—
Mutual and exchange traded funds	573		573		—		—
Total	$	15,717	$	13,020	$	2,697	$	—

			Fair Value Measurements
			December 31, 2014
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(Dollars in thousands)
Interest bearing deposits in banks	$	232	$	—	$	232	$	—
U.S. Government	347		347		—		—
Corporate bonds	4,628		2,476		2,152		—
Marketable equity securities:
Information technology	1,292		1,292		—		—
Financial	1,961		1,961		—		—
Industrials	952		952		—		—
Healthcare	2,519		2,519		—		—
Consumer	3,213		3,213		—		—
Energy	1,546		1,546		—		—
Mutual and exchange traded funds	610		610		—		—
Total	$	17,300	$	14,916	$	2,384	$	—

Schedule of Expected Benefit Payments [Table Text Block]

The following table summarizes the estimated future benefit payments expected to be paid under the Plan:

	(Dollars in thousands)
2016	$	697
2017	728
2018	746
2019	760
2020	793
Years 2021 to 2025	4,348

Schedule of Costs of Retirement Plans [Table Text Block]

The following table summarizes employer contributions for the years ended December 31, 2015, 2014, and 2013:

	2015		2014		2013
	(Dollars in thousands)
Employer matching	$	200	$	195	$	203
Profit sharing	274		236		244
Safe harbor	264		262		272
Total	$	738	$	693	$	719