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GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Changes in Core Deposit Intangible and Trust Relationship Intangibles) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Accumulated Amortization |  |  |  |
2017 amortization | $ (473) | $ (475) | $ (1,417) | $ (1,427)
Net |  |  |  |
Beginning Balance |  |  | 6,764 |
2017 amortization | (473) | $ (475) | (1,417) | $ (1,427)
Ending Balance | 5,347 |  | 5,347 |
Core Deposit Intangible |  |  |  |
Total |  |  |  |
Beginning Balance |  |  | 23,908 |
Ending Balance | 23,908 |  | 23,908 |
Accumulated Amortization |  |  |  |
Beginning Balance |  |  | (17,220) |
2017 amortization |  |  | (1,360) |
Ending Balance | (18,580) |  | (18,580) |
Net |  |  |  |
Beginning Balance |  |  | 6,688 |
2017 amortization |  |  | (1,360) |
Ending Balance | 5,328 |  | 5,328 |
Trust Relationship Intangible |  |  |  |
Total |  |  |  |
Beginning Balance |  |  | 753 |
Ending Balance | 753 |  | 753 |
Accumulated Amortization |  |  |  |
Beginning Balance |  |  | (677) |
2017 amortization |  |  | (57) |
Ending Balance | (734) |  | (734) |
Net |  |  |  |
Beginning Balance |  |  | 76 |
2017 amortization |  |  | (57) |
Ending Balance | $ 19 |  | $ 19 |

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- Definition Finite-Lived Intangible Assets, Accumulated Amortization [Abstract] + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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