Assets and Liabilities Subject to Enforceable Master Netting Agreements (Schedule of Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Interest Rate Swap [Member]
Gross Amounts of Recognized Liabilities	$ (786)	$ (700)
Gross Amounts Offset in the Statement of Condition	0	0
Net Amounts of Liabilities Presented in the Statement of Condition	(786)	(700)
Gross Amounts Not Offset in the Statement of Condition: Financial Instruments	786	700
Gross Amounts Not Offset in the Statement of Condition: Cash Collateral Pledged	0	0
Net amount	0	0
Repurchase Agreements [Member]
Gross Amounts of Recognized Liabilities	35,269	36,000
Gross Amounts Offset in the Statement of Condition	0	0
Net Amounts of Liabilities Presented in the Statement of Condition	35,269	36,000
Gross Amounts Not Offset in the Statement of Condition: Financial Instruments	(35,269)	(36,000)
Gross Amounts Not Offset in the Statement of Condition: Cash Collateral Pledged	0	0
Net amount	$ 0	$ 0