Loans and the Allowance for Loan Losses (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Related Parties	$ 18,977,000	$ 10,279,000
Loans and Leases Receivable, Related Parties, Additions	13,952,000
Loans and Leases Receivable, Related Parties, Collections		5,254,000
Loans Pledged as Collateral	532,800,000	469,500,000
Total Impaired: Recorded Investment	6,935,000	13,946,000
Impaired Financing Receivable, Recorded Investment	6,935,000	13,946,000
Total Impaired: Related Allowance	645,000	1,085,000
Total Impaired: Unpaid Principal Balance	7,305,000	14,935,000
Impaired Financing Receivable, Unpaid Principal Balance	7,305,000	14,935,000
No Related Allowance: Recorded Invesment	1,500,000	2,121,000
Loans performing under the restructured terms	6,200,000
Percent Of Performing Troubled Debt Restructurings, Restructured in Current Periods	91.00%
Financing Receivable, Modifications, Recorded Investment	8,300,000
Loans modified in troubled debt restructuring on non-accrual status	1,500,000
Loans on which concessions were made	1,600,000
Loans on which two or more concessions were made	6,800,000
Capital Leases, Net Investment in Direct Financing Leases, Minimum Payments to be Received	4,699,000	4,870,000
Capital Leases Net Investment In Direct Financing Leases Unearned Interest Income	928,000	1,123,000
Capital Leases, Net Investment in Direct Financing Leases	3,771,000	3,747,000
Mr. Fish [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivable from board of director	$ 9,910,000