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LOANS - Loans Individually Evaluated for Impairment by Portfolio Segment of Loans (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 23, 2013
Consumer Real Estate [Member]
Jun. 30, 2012
Consumer Real Estate [Member]
Jun. 30, 2013
Consumer Real Estate [Member]
Jun. 30, 2012
Consumer Real Estate [Member]
Jun. 23, 2013
Agricultural Real Estate [Member]
Jun. 30, 2012
Agricultural Real Estate [Member]
Jun. 30, 2013
Agricultural Real Estate [Member]
Jun. 30, 2012
Agricultural Real Estate [Member]
Jun. 23, 2013
Agricultural [Member]
Jun. 30, 2012
Agricultural [Member]
Jun. 30, 2013
Agricultural [Member]
Jun. 30, 2012
Agricultural [Member]
Jun. 30, 2013
Commercial Real Estate [Member]
Jun. 30, 2012
Commercial Real Estate [Member]
Jun. 30, 2013
Commercial Real Estate [Member]
Jun. 30, 2012
Commercial Real Estate [Member]
Jun. 30, 2013
Commercial and Industrial [Member]
Jun. 30, 2012
Commercial and Industrial [Member]
Jun. 30, 2013
Commercial and Industrial [Member]
Jun. 30, 2012
Commercial and Industrial [Member]
Jun. 30, 2013
Consumer [Member]
Jun. 30, 2012
Consumer [Member]
Jun. 30, 2013
Consumer [Member]
Jun. 30, 2012
Consumer [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Consumer [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Consumer [Member]
Jun. 30, 2013
With no related allowance recorded [Member]
Consumer [Member]
Jun. 30, 2012
With no related allowance recorded [Member]
Consumer [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Consumer Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Agricultural Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Agricultural [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Commercial Real Estate [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Commercial and Industrial [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Consumer [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Consumer [Member]
Jun. 30, 2013
With a specific allowance recorded [Member]
Consumer [Member]
Jun. 30, 2012
With a specific allowance recorded [Member]
Consumer [Member]
Noncancelable Obligations Future Minimum Payments Due [Line Items]                                                                                                                                                
Recorded Investment $ 470 $ 738 $ 470 $ 738 $ 88    $ 88                $ 1,035 $ 807 $ 1,035 $ 807 $ 2,928 $ 2,805 $ 2,928 $ 2,805    $ 4    $ 4 $ 359 $ 340 $ 359 $ 340                        $ 1,035 $ 207 $ 1,035 $ 207 $ 309 $ 364 $ 309 $ 364             $ 111 $ 398 $ 111 $ 398 $ 88    $ 88                   $ 600    $ 600 $ 2,619 $ 2,441 $ 2,619 $ 2,441    $ 4    $ 4
Unpaid Principal Balance 542 780 542 780 88    88               1,459 1,231 1,459 1,231 2,928 2,805 2,928 2,805 3 14 3 14 431 355 431 355                         1,459 384 1,459 384 309 364 309 364 3 10 3 10 111 425 111 425 88    88                 847    847 2,619 2,441 2,619 2,441   4    4
Related Allowance 38 139 38 139 15    15                          718 417 718 417    1    1                                                                        38 139 38 139 15    15                          718 417 718 417   1    1
Average Recorded Investment 313 613 252 580 111    55               1,053 871 954 890 2,968 1,284 2,998 888    4    4 202 213 131 185                         1,038 207 622 207 309 122 297 61            111 400 121 395 111    55               15 664 332 683 2,659 1,162 2,701 827   4    4
Interest Income Recognized         $ 5                                     $ 1    $ 2                                                                                         $ 5                                    $ 1    $ 2