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Gross Unrealized Losses and Fair Value Aggregated by Investment Category and Length of Time in Continuous Unrealized Loss Position (Detail) (USD $)
Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]  
Less than 12 months Fair Value $ 37,001,125
Less than 12 months Unrealized Loss 2,914,760
12 months or more Fair Value 7,218,610
12 months or more Unrealized Loss 664,841
Total Fair Value 44,219,735
Total Unrealized Loss 3,579,601
Obligations of U.S. Government Agencies
  
Schedule of Available-for-sale Securities [Line Items]  
Less than 12 months Fair Value   
Less than 12 months Unrealized Loss   
12 months or more Fair Value   
12 months or more Unrealized Loss   
Total Fair Value   
Total Unrealized Loss   
State and Municipal
  
Schedule of Available-for-sale Securities [Line Items]  
Less than 12 months Fair Value 15,166,247
Less than 12 months Unrealized Loss 1,702,555
12 months or more Fair Value 255,612
12 months or more Unrealized Loss 44,388
Total Fair Value 15,421,859
Total Unrealized Loss 1,746,943
Corporate trust preferred
  
Schedule of Available-for-sale Securities [Line Items]  
Less than 12 months Fair Value   
Less than 12 months Unrealized Loss   
12 months or more Fair Value 224,275
12 months or more Unrealized Loss 109,403
Total Fair Value 224,275
Total Unrealized Loss 109,403
Mortgaged-backed
  
Schedule of Available-for-sale Securities [Line Items]  
Less than 12 months Fair Value 21,834,878
Less than 12 months Unrealized Loss 1,212,205
12 months or more Fair Value 6,738,723
12 months or more Unrealized Loss 511,050
Total Fair Value 28,573,601
Total Unrealized Loss $ 1,723,255