Fair Value Measurements, By Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment securities:
Available-for-sale	$ 327,740	$ 258,241
Held-to-maturity	23,748	16,196
Held-to-maturity, at cost	23,843	16,323
Federal Reserve Bank stock, at cost	2,346	1,603
Federal Home Loan Bank stock, at cost	3,638	2,854
Carrying Amount [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	18,881	14,688
Investment securities:
Available-for-sale	327,740	258,241
Held-to-maturity	23,843	16,323
Federal Reserve Bank stock	2,346	1,603
Federal Home Loan Bank stock	3,638	2,854
Loans, net	688,325	570,766
FINANCIAL LIABILITIES:
Deposits	986,824	785,761
Short-term borrowings	23,523	8,655
Long-term debt	11,506	12,102
Fair Value [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	18,881	14,688
Investment securities:
Available-for-sale	327,740	258,241
Held-to-maturity	23,748	16,196
Federal Reserve Bank stock	2,346	1,603
Federal Home Loan Bank stock	3,638	2,854
Loans, net	692,982	573,163
FINANCIAL LIABILITIES:
Deposits	989,291	788,096
Short-term borrowings	23,523	8,655
Long-term debt	12,162	12,842
Fair Value, Inputs, Level 1 [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	18,881	14,688
Investment securities:
Available-for-sale	63,981	16,114
Held-to-maturity	0	0
Federal Reserve Bank stock, at cost	2,346	1,603
Federal Home Loan Bank stock, at cost	3,638	2,854
Loans Receivable, Net	0	0
FINANCIAL LIABILITIES:
Deposits	757,890	599,838
Short-term borrowings	23,523	8,655
Long-term debt	0	0
Fair Value, Inputs, Level 2 [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	0	0
Investment securities:
Available-for-sale	263,759	242,127
Held-to-maturity	0	0
Federal Reserve Bank stock, at cost	0	0
Federal Home Loan Bank stock, at cost	0	0
Loans Receivable, Net	478	773
FINANCIAL LIABILITIES:
Deposits	231,401	188,258
Short-term borrowings	0	0
Long-term debt	12,162	12,842
Fair Value, Inputs, Level 3 [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	0	0
Investment securities:
Available-for-sale	0	0
Held-to-maturity	23,748	16,196
Federal Reserve Bank stock, at cost	0	0
Federal Home Loan Bank stock, at cost	0	0
Loans Receivable, Net	692,504	572,390
FINANCIAL LIABILITIES:
Deposits	0	0
Short-term borrowings	0	0
Long-term debt	$ 0	$ 0