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Nature of Banking Activities and Significant Accounting Policies (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Entity
Dec. 31, 2011
Dec. 31, 2010
Nature of Banking Activities and Significant Accounting Policies (Additional Textual) [Abstract]      
Number of accounts included by parent company 6    
Recognition of other than temporary impairment on basis of credit loss description If there is no credit loss, there is no other-than-temporary impairment. If there is a credit loss, other-than-temporary impairment exists, and the credit loss must be recognized in net income and the remaining portion of impairment must be recognized in other comprehensive income.    
Gain (loss) on rate lock commitments $ 0    
Reclassified TDR value 6,300,000 11,400,000  
Loan segment and allowance factors assigned by management on number of years 3 years    
Largest amount of tax benefit realized by taxing authority 50.00%    
Liability for unrecognized tax benefits 0 0  
Potential common shares that would have a dilutive effect 0    
Average number of common shares outstanding basic and diluted 3,944,506 2,953,344 2,939,561
Advertising cost 364,000 368,000 398,000
Maximum [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Period of time between issuance of a loan commitment and closing and sale of the loan 60 days    
Accrual status of loan 90 days    
Company not considered value of impairment on individual consumer, residential and small commercial loans 500,000    
Maximum [Member] | Premises and Equipment [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Estimated useful lives of depreciation of Premises and equipment 40 years    
Maximum [Member] | Software [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Estimated useful lives of depreciation of Premises and equipment 7 years    
Minimum [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Period of time between issuance of a loan commitment and closing and sale of the loan 30 days    
Management's policy on evaluation of impairment $ 500,000    
Minimum [Member] | Premises and Equipment [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Estimated useful lives of depreciation of Premises and equipment 3 years    
Minimum [Member] | Software [Member]
      
Nature of Banking Activities and Significant Accounting Policies (Textual) [Abstract]      
Estimated useful lives of depreciation of Premises and equipment 3 years