LOANS - Maturity Schedule by Major Category of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	$ 36,770
Maturity schedule by major category of loans, After One Year Within Five Years	103,283
Maturity schedule by major category of loans, After Five Years	75,193
Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	2,609
Maturity schedule by major category of loans, After One Year Within Five Years	9,126
Maturity schedule by major category of loans, After Five Years	24,011
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	11,501
Maturity schedule by major category of loans, After One Year Within Five Years	13,082
Maturity schedule by major category of loans, After Five Years	53,365
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	61,597
Maturity schedule by major category of loans, After One Year Within Five Years	27,005
Maturity schedule by major category of loans, After Five Years	5,376
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	32,792
Maturity schedule by major category of loans, After One Year Within Five Years	19,349
Maturity schedule by major category of loans, After Five Years	3,190
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	5,210
Maturity schedule by major category of loans, After One Year Within Five Years	12,573
Maturity schedule by major category of loans, After Five Years	1,940
Industrial Development Bonds [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity schedule by major category of loans, Within One Year	2,220
Maturity schedule by major category of loans, After One Year Within Five Years	490
Maturity schedule by major category of loans, After Five Years	$ 392