Loans and Allowance for Loan Losses (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012 Contract	Dec. 31, 2011
Loans and Allowance for Loan Losses (Textual) [Abstract]
Demand deposit loan account charge-offs	$ 1,547,000	$ 1,561,000
Demand deposit loan account recoveries	240,000	229,000
Loans and Allowance for Loan Losses (Additional Textual) [Abstract]
1 - 4 family real estate maximum loan to value ratio without credit enhancements	80.00%
1 - 4 family real estate maximum loan to value ratio with Private Mortgage Insurance	100.00%
Commercial and agricultural real estate maximum loan to value ratio	75.00%
Aggregate loan amount which has been considered for disclosure	60,000
Principal balance of mortgage loans serviced for others	197,238,000	168,025,000
Valuation allowance for capitalized mortgage servicing rights	0	0
Loans to Directors and Executive Officers Under default	0
Commercial Loan [Member]
Loans and Allowance for Loan Losses (Textual) [Abstract]
Demand deposit loan account charge-offs	132,000	167,000
Demand deposit loan account recoveries	125,000	72,000
Real estate mortgage [Member]
Loans and Allowance for Loan Losses (Textual) [Abstract]
Reserve or charge off for TDR	0
Real estate mortgage TDR in default, Recorded Amount	$ 30,000
Number of Real Estate Mortgage TDR's under default after modification	1