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Regulatory Matters (Details) (USD $)
1 Months Ended 12 Months Ended
Jul. 31, 2007
Dec. 31, 2012
Dec. 31, 2011
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Required tangible shareholders' equity to total tangible assets ratio (in hundredths)   9.50%  
Tangible shareholders equity to total tangible assets (in hundredths)   11.70% 10.50%
Minimum tier 1 capital to total assets ratio (in hundredths)   3.00%  
Capital [Abstract]      
Total Capital (to Risk Weighted Assets) Actual   $ 71,436,000 $ 63,522,000
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes   36,892,000 39,303,000
Tier One Risk Based Capital [Abstract]      
Tier 1 Capital (to Risk Weighted Assets) Actual   65,742,000 57,286,000
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes   18,446,000 19,651,000
Tier One Leverage Capital [Abstract]      
Tier 1 Capital (to Average Assets) Actual   65,742,000 57,286,000
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes   24,671,000 26,068,000
Risk Based Ratios [Abstract]      
Total Capital (to Risk Weighted Assets) Actual (in hundredths)   15.49% 12.93%
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes (in hundredths)   8.00% 8.00%
Tier One Risk Based Ratios [Abstract]      
Tier 1 Capital (to Risk Weighted Assets) Actual (in hundredths)   14.26% 11.66%
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes (in hundredths)   4.00% 4.00%
Leverage Ratios [Abstract]      
Tier 1 Capital (to Average Assets) Actual (in hundredths)   10.66% 8.79%
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes (in hundredths)   4.00% 4.00%
Maximum loan losses percentage (in hundredths)   1.25%  
Description of other regulatory limitations   Insured institutions are required to maintain a ratio of qualifying total capital to risk weighted assets of 8%, at least one-half of which must be in the form of Tier 1 capital  
Amount issued in trust preferred securities 15,000,000    
Maximum qualified percentage (in hundredths) 25.00%    
Dividends received   0 0
Vault cash and balances   25,000 25,000
Minimum [Member]
     
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Addition to leverage ratio (in hundredths)   1.00%  
Maximum [Member]
     
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Addition to leverage ratio (in hundredths)   2.00%  
Bank [Member]
     
Capital [Abstract]      
Total Capital (to Risk Weighted Assets) Actual   73,296,000 63,672,000
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes   37,175,000 39,460,000
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions   46,468,000 49,325,000
Tier One Risk Based Capital [Abstract]      
Tier 1 Capital (to Risk Weighted Assets) Actual   67,558,000 57,412,000
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes   18,587,000 19,730,000
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions   27,168,000 29,595,000
Tier One Leverage Capital [Abstract]      
Tier 1 Capital (to Average Assets) Actual   67,558,000 57,412,000
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes   24,671,000 25,454,000
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions   $ 30,838,000 $ 31,817,000
Risk Based Ratios [Abstract]      
Total Capital (to Risk Weighted Assets) Actual (in hundredths)   15.77% 12.91%
Total Capital (to Risk Weighted Assets) For Capital Adequacy Purposes (in hundredths)   8.00% 8.00%
Total Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions (in hundredths)   10.00% 10.00%
Tier One Risk Based Ratios [Abstract]      
Tier 1 Capital (to Risk Weighted Assets) Actual (in hundredths)   14.54% 11.64%
Tier 1 Capital (to Risk Weighted Assets) For Capital Adequacy Purposes (in hundredths)   4.00% 4.00%
Tier 1 Capital (to Risk Weighted Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions (in hundredths)   6.00% 6.00%
Leverage Ratios [Abstract]      
Tier 1 Capital (to Average Assets) Actual (in hundredths)   10.95% 9.02%
Tier 1 Capital (to Average Assets) For Capital Adequacy Purposes (in hundredths)   4.00% 4.00%
Tier 1 Capital (to Average Assets) To Be Well Capitalized Under Prompt Corrective Action Provisions (in hundredths)   5.00% 5.00%