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LOANS - Distribution of Fixed Rate Loans and Variable Rate Loans by Major Loan Category (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Commercial Real Estate [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate $ 127,488
Distribution of variable rate loans by major loan category, Variable Rate 87,758
Agricultural Real Estate [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 25,836
Distribution of variable rate loans by major loan category, Variable Rate 9,910
Consumer Real Estate [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 64,041
Distribution of variable rate loans by major loan category, Variable Rate 13,907
Commercial and Industrial [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 73,134
Distribution of variable rate loans by major loan category, Variable Rate 20,844
Agricultural [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 50,697
Distribution of variable rate loans by major loan category, Variable Rate 4,634
Consumer [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 16,415
Distribution of variable rate loans by major loan category, Variable Rate 3,308
Industrial Development Bonds [Member]
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Distribution of fixed rate loans by major loan category, Fixed Rate 3,102
Distribution of variable rate loans by major loan category, Variable Rate