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Business Segments (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2014
segment
Mar. 31, 2013
Dec. 31, 2013
Segment Reporting Information [Line Items]      
Net interest income $ 3,954,000 $ 3,921,000  
Provision for loan losses 55,000 235,000 540,000
Net interest income after provision for loan losses 3,899,000 3,686,000  
Noninterest income 717,000 964,000  
Noninterest expenses 3,609,000 3,531,000  
Income before income taxes 1,007,000 1,119,000  
Income tax expense 302,000 331,000  
Net income 705,000 788,000  
Total assets 442,584,000 428,086,000 434,511,000
Number of reportable segments 2    
Community Banking [Member]
      
Segment Reporting Information [Line Items]      
Net interest income 3,954,000 3,921,000  
Provision for loan losses 55,000 235,000  
Net interest income after provision for loan losses 3,899,000 3,686,000  
Noninterest income 428,000 645,000  
Noninterest expenses 3,350,000 3,278,000  
Income before income taxes 977,000 1,053,000  
Income tax expense 292,000 309,000  
Net income 685,000 744,000  
Total assets 440,610,000 427,233,000  
Mortgage [Member]
      
Segment Reporting Information [Line Items]      
Noninterest income 289,000 319,000  
Noninterest expenses 259,000 253,000  
Income before income taxes 30,000 66,000  
Income tax expense 10,000 22,000  
Net income 20,000 44,000  
Total assets $ 1,974,000 $ 853,000