Employee Benefit Plans (Schedule of Changes in Benefit Obligation and Plan Assets) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Amounts recognized in accumulated other comprehensive loss
Total		$ 2,130	$ 2,047
Supplemental Executive Retirement Plan [Member]
Benefit obligations:
Beginning of year		11,052	10,834
Service cost		308	307	$ 270
Interest cost		432	424	456
Actuarial (gain) loss		219	(32)
Benefits paid		(488)	(481)
End of year		11,523	11,052	10,834
Fair value of plan assets:
Beginning of year		0	0
Employer contributions		488	481
Benefits paid		(488)	(481)
End of year		0	0	0
Funded status at end of year(2)	[1]	11,523	11,052
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss		1,791	1,789
Prior service cost (credit)			5
Total		1,791	1,794
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation	[2]	0	0
Other Postretirement Benefit Plan [Member]
Benefit obligations:
Beginning of year		3,447	2,997
Service cost		59	62	45
Interest cost		151	117	132
Actuarial (gain) loss		143	92
Benefits paid		(165)	(133)
End of year		3,635	3,447	2,997
Fair value of plan assets:
Beginning of year		0	0
Employer contributions		165	133
Benefits paid		(165)	(133)
End of year		0	0	$ 0
Funded status at end of year(2)	[1]	3,635	3,447
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss		495	423
Prior service cost (credit)		(156)	(170)
Total		339	253
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation	[2]	$ 0	$ 312

[1] (2)Reported within other liabilities on the consolidated statements of condition.

[2] (1)In connection with the Merger, the Company assumed its post-retirement benefits for certain former employees and their spouses whereby the Company will cover 100% of healthcare premiums.