INTEREST-BEARING DEPOSITS AND SECURITIES (Securities Pledged) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]
State and local governments public deposits, amortized cost	$ 116,343
Interest rate swap counterparties, amortized cost	10,967
Retail repurchase transaction accounts, amortized cost	104,594
Total pledged securities, amortized cost	231,904
State and local governments public deposits, fair value	121,720
Interest rate swap counterparties, fair value	11,152
Retail repurchase transaction accounts, fair value	106,562
Total pledged securities, fair value	$ 239,434

Pledged Financial Instruments, Not Separately Reported, Securities, Amortized Cost

No definition available.

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- Definition

Pledged Financial Instruments, Not Separately Reported, Securities, Fair Value

+ References

No definition available.

+ Details

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- Definition

Pledged Financial Instruments, Not Separately Reported, Securities for Interest Rate Swap Counterparties

+ References

No definition available.

+ Details

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- Definition

Pledged Financial Instruments, Not Separately Reported, Securities for Interest Rate Swap Counterparties, Fair Value

+ References

No definition available.

+ Details

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- Definition

Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements, Fair Value

+ References

No definition available.

+ Details

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- Definition

Pledged Financial Instruments, Not Separately Reported, State and Local Government Public Deposits

+ References

No definition available.

+ Details

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- Definition

Pledged Financial Instruments, Not Separately Reported, State and Local Government Public Deposits, Fair Value

+ References

No definition available.

+ Details

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- Definition

The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 30

-Section 50

-Paragraph 1A

-Subparagraph (b)(1)(i)

-URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS140-4/FIN46(R)-8

-Paragraph B6

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 17

-Subparagraph a(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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