Loans (Narrative) (Details) (USD $)				9 Months Ended	12 Months Ended														9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended
	Sep. 30, 2014 loan	Dec. 31, 2013 loan	Sep. 30, 2013	Sep. 30, 2014 Financing Receivable Troubled Debt Restructuring [Member] loan	Dec. 31, 2013 Financing Receivable Troubled Debt Restructuring [Member] loan	Sep. 30, 2014 Commercial Real Estate [Member]	Dec. 31, 2013 Commercial Real Estate [Member]	Sep. 30, 2013 Commercial Real Estate [Member]	Sep. 30, 2014 Commercial Loans [Member]	Dec. 31, 2013 Commercial Loans [Member]	Sep. 30, 2013 Commercial Loans [Member]	Sep. 30, 2014 Commercial Equipment [Member]	Dec. 31, 2013 Commercial Equipment [Member]	Sep. 30, 2013 Commercial Equipment [Member]	Sep. 30, 2014 Residential Mortgage [Member]	Dec. 31, 2013 Residential Mortgage [Member]	Sep. 30, 2013 Residential Mortgage [Member]	Sep. 30, 2014 Adjustable Rate Residential First Mortgage [Member]	Sep. 30, 2014 Eight Commercial Real Estate Loans [Member] Financing Receivable Troubled Debt Restructuring [Member] loan	Dec. 31, 2013 Thirteen commercial real estate loans [Member] Financing Receivable Troubled Debt Restructuring [Member] loan	Sep. 30, 2014 Nonaccrual Loans With No Impairment [Member]	Dec. 31, 2013 Nonaccrual Loans With No Impairment [Member]	Sep. 30, 2014 Nonaccrual Loans With Impairment [Member]	Dec. 31, 2013 Nonaccrual Loans With Impairment [Member]	Sep. 30, 2014 Maximum [Member]	Sep. 30, 2014 Maximum [Member] Commercial Loans [Member]	Sep. 30, 2014 Maximum [Member] Residential Mortgage [Member]	Sep. 30, 2014 Minimum [Member]	Sep. 30, 2014 Minimum [Member] Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, allowance percentage	0.98%	1.01%				80.00%
Total non-accrual loans	$ 10,907,000	$ 15,451,000		$ 2,400,000	$ 1,800,000														$ 3,200,000	$ 4,700,000	$ 4,900,000	$ 9,100,000	$ 6,000,000	$ 6,400,000
Debt maturity period																									20 years	5 years	30 years	3 years	10 years
Credit quality indicator																												750,000
Investment income, interest				176,000	214,000
Interest due to debt																					329,000	304,000	411,000	295,000
Increase (decrease) in loans				968,000	204,000																(4,500,000)
Loan portfolio	846,391,000	808,240,000	768,841,000			545,663,000	476,648,000	445,662,000	63,681,000	94,176,000	86,504,000	25,836,000	23,738,000	21,085,000	155,234,000	159,147,000	161,862,000	28,300,000
Percentage status of loan in portfolio						5.00%	5.00%											3.30%			1.29%	1.91%
Allowance for loan loss	8,273,000	8,138,000
Number of loans																			8	13
Nonaccrual loans with deferred collection of principal and interest for one year															3,900,000
Loans added to troubled debt restructuring				3	3
Loans removed from troubled debt restructuring				8
Amount of loans removed from troubled debt restructuring				(2,400,000)
Number of accruing loans 90 days or greater past due	0	0
Reserve of the allowance for loan losses				196,000	79,000
Non-accrual performing loans		4,281,000
90 or greater days	$ 10,907,000	$ 11,170,000			$ 329,000	$ 4,580,000	$ 4,235,000		$ 1,587,000	$ 1,935,000		$ 220,000	$ 234,000		$ 607,000	$ 1,683,000