Loans and Allowance for Loan Losses (Details 2) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2011
Summary of loans by grade or classification      
Total loans $ 220,069 $ 213,877 $ 195,581
Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans 8,147 6,986 3,594
Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans 42,061 38,348 31,522
One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans 153,731 150,613 141,029
Home equity [Member]
      
Summary of loans by grade or classification      
Total loans 9,305 9,612 10,117
Consumer [Member]
      
Summary of loans by grade or classification      
Total loans 6,825 8,318 9,319
Pass [Member]
      
Summary of loans by grade or classification      
Total loans 209,766 204,470  
Pass [Member] | Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans 8,147 6,986  
Pass [Member] | Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans 34,943 31,170  
Pass [Member] | One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans 150,584 148,433  
Pass [Member] | Home equity [Member]
      
Summary of loans by grade or classification      
Total loans 9,296 9,600  
Pass [Member] | Consumer [Member]
      
Summary of loans by grade or classification      
Total loans 6,796 8,281  
Special Mention [Member]
      
Summary of loans by grade or classification      
Total loans 595 736  
Special Mention [Member] | Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans        
Special Mention [Member] | Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans        
Special Mention [Member] | One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans 558 687  
Special Mention [Member] | Home equity [Member]
      
Summary of loans by grade or classification      
Total loans 9 12  
Special Mention [Member] | Consumer [Member]
      
Summary of loans by grade or classification      
Total loans 28 37  
Substandard [Member]
      
Summary of loans by grade or classification      
Total loans 9,708 8,671  
Substandard [Member] | Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans        
Substandard [Member] | Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans 7,118 7,178  
Substandard [Member] | One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans 2,589 1,493  
Substandard [Member] | Home equity [Member]
      
Summary of loans by grade or classification      
Total loans        
Substandard [Member] | Consumer [Member]
      
Summary of loans by grade or classification      
Total loans 1     
Doubtful [Member]
      
Summary of loans by grade or classification      
Total loans        
Doubtful [Member] | Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans        
Doubtful [Member] | Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans        
Doubtful [Member] | One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans        
Doubtful [Member] | Home equity [Member]
      
Summary of loans by grade or classification      
Total loans        
Doubtful [Member] | Consumer [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member] | Commercial business [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member] | Commercial real estate [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member] | One-to-four family [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member] | Home equity [Member]
      
Summary of loans by grade or classification      
Total loans        
Loss [Member] | Consumer [Member]
      
Summary of loans by grade or classification      
Total loans