Loans and Leases (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 376,077,000	$ 408,715,000
Commitment to extend credit	70,900,000	62,400,000
Standby letters of credit	3,500,000	2,500,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period	3 years
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period	15 years
Commercial and business loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	121,899,000	163,442,000
Government program loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	2,339,000	2,984,000
Total commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	124,238,000	166,426,000
Percentage of total loans (in hundredths)	33.00%
Real estate - mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total loans (in hundredths)	40.10%
Commercial real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	124,755,000	118,857,000
Residential mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	24,201,000	24,031,000
Home Improvement and Home Equity Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,768,000	1,859,000
Total real estate mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	150,724,000	144,747,000
RE construction and development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	66,301,000	50,400,000
Percentage of total loans (in hundredths)	17.60%
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	22,878,000	35,811,000
Percentage of total loans (in hundredths)	6.10%
Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	11,915,000	11,282,000
Commercial Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 21,000	$ 49,000
Percentage of total loans (in hundredths)	0.01%