FAIR VALUE (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair value on instruments on recurring basis
Securities available for sale	$ 318,177	$ 273,770
Transfers from Level 1 to Level 2	0	0
Transfers from Level 2 to Level 1	0	0
Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	318,177	273,770
Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value on instruments on recurring basis
Securities available for sale	340	340
Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	317,837	273,430
Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	318,177	279,362
Recurring \| Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value on instruments on recurring basis
Securities available for sale	340	1,948
Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	317,837	277,414
U.S. treasury notes
Fair value on instruments on recurring basis
Securities available for sale	4,024
U.S. treasury notes \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	4,024
U.S. treasury notes \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	4,024
U.S. government agencies
Fair value on instruments on recurring basis
Securities available for sale	41,705	36,528
U.S. government agencies \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	41,705	36,528
U.S. government agencies \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	41,705	36,528
States and political subdivisions
Fair value on instruments on recurring basis
Securities available for sale	90,135	91,132
States and political subdivisions \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	90,135	91,132
States and political subdivisions \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	90,135	91,132
Mortgage-backed - residential
Fair value on instruments on recurring basis
Securities available for sale	130,377	108,075
Mortgage-backed - residential \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	130,377	108,075
Mortgage-backed - residential \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	130,377	108,075
Mortgage-backed - commercial
Fair value on instruments on recurring basis
Securities available for sale	51,596	37,695
Mortgage-backed - commercial \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	51,596	37,695
Mortgage-backed - commercial \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale	51,596	37,695
Equity
Fair value on instruments on recurring basis
Securities available for sale	340	340
Equity \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale	340	340
Equity \| Recurring \| Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value on instruments on recurring basis
Securities available for sale	$ 340	340
Trading Assets \| Recurring \| Carrying Value
Fair value on instruments on recurring basis
Securities available for sale		5,592
Trading Assets \| Recurring \| Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value on instruments on recurring basis
Securities available for sale		1,608
Trading Assets \| Recurring \| Significant Other Observable Inputs (Level 2)
Fair value on instruments on recurring basis
Securities available for sale		$ 3,984

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

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