SECURITIES Securities - Narrative (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Gain (Loss) on Securities [Line Items]
Proceeds from sales and calls of securities resulting in gains or losses	$ 0	$ 0
Change in fair value of equity securities	89,000	$ (2,000)
Visa Class B
Gain (Loss) on Securities [Line Items]
Change in fair value of equity securities	$ 2,100,000

Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration