INVESTMENT SECURITIES - NARRATIVE (Details) $ in Thousands	Sep. 30, 2016 USD ($) investment_security	Dec. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Number of available for sale securities with an unrealized loss position for more than 12 months \| investment_security	20
12 months or more, unrealized losses	$ 1,905	$ 3,583
Investment securities, as a percentage of total stockholders' equity	10.00%	10.00%
Carrying amount of investment securities pledged as collateral	$ 368,522	$ 279,953
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Number of available for sale securities with an unrealized loss position for more than 12 months \| investment_security	6
12 months or more, unrealized losses	$ 900	$ 111

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

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Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

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Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Month or Longer, Number of Securities

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Percentage of the investment securities held.

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