Fair Value Measurements (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Financial assets, Carrying Amount
Cash and cash equivalents, Carrying Amount	$ 94,370	$ 131,090	$ 124,506	$ 200,193
Investment securities held to maturity, Carrying Amount	5,071	5,185
Loans, net, Carrying Amount	700,583	701,194
Financial liabilities, Carrying Amount
Deposits, Carrying Amount	913,485	933,468
Short-term borrowings, Carrying Amount	7,801	10,140
Financial assets, Estimated Fair Value
Investment securities held to maturity, Estimated Fair Value	5,076	5,062
Fair Value, Inputs, Level 1 [Member]
Financial assets, Estimated Fair Value
Cash and cash equivalents, Estimated Fair Value	94,370	131,090
Fair Value, Inputs, Level 2 [Member]
Financial assets, Estimated Fair Value
Investment securities held to maturity, Estimated Fair Value	5,076	5,062
Loans, net, Estimated Fair Value	719,929	721,688
Financial liabilities, Estimated Fair Value
Deposits, Estimated Fair Value	914,011	934,943
Short-term borrowings, Estimated Fair Value	$ 7,801	$ 10,140