Employee Benefit Plans (Other Postretirement Defined Benefit Plans) (Details)		12 Months Ended
	Dec. 31, 2006 employee	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of new employees covered | employee	0
Other Postretirement Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of new employees covered | employee	0
Eligible age for grandfathering provision at plan amendment to freeze plan	40 years
Eligible vesting service period for grandfathering provision at plan amendment to freeze plan	10 years
Change in Benefit Obligation
Benefit obligation at beginning of year		$ 1,085,000	$ 1,138,000
Settlement distributions and curtailment		(601,000)	0
Interest cost		46,000	55,000	$ 57,000
Net actuarial (gain)/loss		16,000	(15,000)
Plan participant contributions		89,000	82,000
Benefits paid		(102,000)	(175,000)
Benefit obligation at end of year		533,000	1,085,000	1,138,000
Change in Plan Assets
Employer contributions		269,000	93,000
Plan participant contributions		89,000	82,000
Settlement distributions		(256,000)	0
Benefits paid		(102,000)	(175,000)
Fair value of plan assets at end of year		0	0
Funded Status at End of Year		(533,000)	(1,085,000)
Amounts Recognized in the Consolidated Balance Sheets
Other Liabilities		533,000	1,085,000
Amounts Recognized in Accumulated Other Comprehensive Income
Net actuarial loss		(112,000)	(147,000)
Prior service cost		(6,000)	(12,000)
Net amount recognized		$ (118,000)	$ (159,000)
Weighted-Average Plan Assumptions at End of Year
Discount rate		4.75%	4.50%
Net Periodic Benefit Cost/(Income)
Service cost		$ 0	$ 0	0
Interest cost		46,000	55,000	57,000
Amortization of prior service cost		(3,000)	(10,000)	(4,000)
Effect of curtailment and settlement		(368,000)	0	0
Net periodic benefit cost		(325,000)	45,000	53,000
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net actuarial loss/(gain)		38,000	(15,000)	(223,000)
Amortization of prior service credit		3,000	10,000	4,000
Total recognized in other comprehensive loss/(income)		41,000	(5,000)	(219,000)
Total Recognized in Net Periodic Pension Cost and Other Comprehensive Loss		(284,000)	$ 40,000	$ (166,000)
Amounts to be Amortized from Accumulated Other Comprehensive Income/(Loss) into Net Periodic Benefit Cost over Next Year
Net (gain) loss to be amortized from accumulated other comprehensive income/(loss) into net periodic benefit cost over the next year		(9,000)
Prior service credit to be amortized from accumulated other comprehensive income/(loss) into net periodic benefit cost over the next year		1,000
Expected Future Employer Contributions to Benefit Plans
Expected contribution to benefit plan		0
Estimated Future Benefit Payments
Estimated benefit payments in 2016		40,000
Estimated benefit payments in 2017		30,000
Estimated benefit payments in 2018		30,000
Estimated benefit payments in 2019		30,000
Estimated benefit payments in 2020		30,000
Estimated benefit payments in 2021 through 2025		$ 150,000