Borrowed Funds (Summary of Short Term Borrowings) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Borrowed Funds [Abstract]
Outstanding at end of period	$ 47,994	$ 43,676
Weighted average interest rate at end of period	0.12%	0.14%
Maximum amount outstanding as of any month end	53,370	61,354
Average amount outstanding	$ 44,646	$ 47,777
Approximate weighted average rate during the period	0.13%	0.13%