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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Changes in goodwill | $ 0 | $ 0
Other Intangible Assets, net |  |
Gross Intangible Assets | 20,700 | 20,642
Accumulated Amortization | (13,930) | (12,851)
Net Intangible Assets | 6,770 | 7,791
Core deposits |  |
Other Intangible Assets, net |  |
Gross Intangible Assets | 13,750 | 13,750
Accumulated Amortization | (12,051) | (11,448)
Net Intangible Assets | $ 1,699 | 2,302
Customer relationships |  |
Other Intangible Assets, net |  |
Amortization period | 15 years |
Gross Intangible Assets | $ 6,629 | 6,629
Accumulated Amortization | (1,767) | (1,326)
Net Intangible Assets | 4,862 | 5,303
Servicing asset |  |
Other Intangible Assets, net |  |
Gross Intangible Assets | 321 | 263
Accumulated Amortization | (112) | (77)
Net Intangible Assets | $ 209 | $ 186
Weighted Average | Core deposits |  |
Other Intangible Assets, net |  |
Amortization period | 6 years 2 months 12 days | 7 years 1 month 6 days
Weighted Average | Customer relationships |  |
Other Intangible Assets, net |  |
Amortization period | 11 years | 12 years
Weighted Average | Servicing asset |  |
Other Intangible Assets, net |  |
Amortization period | 17 years 3 months 18 days | 16 years 9 months 18 days
Minimum |  |
Other Intangible Assets, net |  |
Amortization period | 7 years |
Minimum | Core deposits |  |
Other Intangible Assets, net |  |
Amortization period | 7 years |
Maximum |  |
Other Intangible Assets, net |  |
Amortization period | 20 years |
Maximum | Core deposits |  |
Other Intangible Assets, net |  |
Amortization period | 10 years |

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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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