Fair Value (Reconciliation of all Assets Measured at Fair Value on Recurring Basis, Using Significant Unobservable Inputs (Level 3) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Obligations of State and Political Subdivisions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or Losses (realized/unrealized) Included in Other Comprehensive Income	$ (81)	$ 86	$ (45)	$ 155
Fair Value, Measurements, Recurring | Obligations of State and Political Subdivisions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance of Recurring Level 3 Assets	9,602	10,476	10,141	10,832
Total Gains or Losses (realized/unrealized) Included in Other Comprehensive Income	(81)	86	(45)	155
Maturities / Calls	0	0	(575)	(425)
Purchases	1,304	0	1,304	0
Ending Balance of Recurring Level 3 Assets	10,825	10,562	10,825	10,562
Fair Value, Measurements, Recurring | Equity Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance of Recurring Level 3 Assets	353	353	353	353
Total Gains or Losses (realized/unrealized) Included in Other Comprehensive Income	0	0	0	0
Maturities / Calls	0	0	0	0
Purchases	0	0	0	0
Ending Balance of Recurring Level 3 Assets	$ 353	$ 353	$ 353	$ 353