SECURITIES (Textual) (Details)	3 Months Ended	9 Months Ended
Sep. 30, 2018 USD ($) security	Sep. 30, 2018 USD ($) security	Sep. 30, 2017 USD ($) security	Dec. 31, 2017 security
Investments, Debt and Equity Securities [Abstract]
Trading Securities, Sale Proceeds		$ 0	$ 0
Trading Securities, Realized Gain (Loss)		0	0
Trading Securities, OTTI (Recovery) Charges		$ 0	0
Trading Securities, Number of Securities on Nonaccrual Status \| security	0	0		0
Trading Securities, Unrealized Holding Gain		$ 3,498,000	400,000
Debt Securities, Available-for-sale [Abstract]
Available-for-sale Securities, Number of Securities in Unrealized Loss Position \| security	336	336		226
Available-for-sale Securities, Gross Realized Gains (Losses), Number of Securities Sold \| security		9
Available-for-sale Securities, Sale Proceeds		$ 8,400,000	35,600,000
Available-for-sale Securities, Gross Realized Gain (Loss)		51,000	230,000
Available-for-sale Securities, OTTI Charges		$ 0	$ 0
Available-for-sale Securities, Number of Securities in Nonaccrual Status \| security	0	0		0
Held-to-maturity Securities [Abstract]
Held-to-maturity Securities, Number of Securities in Unrealized Loss Position \| security	113	113		66
Held-to-maturity Securities, Number of Securities Sold \| security		0	0
Held-to-maturity Securities, Sale Proceeds		$ 0
Principal repayments and maturities of securities—held-to-maturity	$ 2,000	8,291,000	$ 6,544,000
Held-to-maturity Securities, OTTI Charges		$ 0	$ 0
Held-to-maturity Securities, Number of Securities in Nonaccrual Status \| security	0	0		0

Available-for-sale Securities, Gross Realized Gains (Losses), Number of Securities Sold

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Available-for-sale Securities, Number of Securities in Nonaccrual Status

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Held-to-maturity Securities, Number of Securities in Nonaccrual Status

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Held-to-maturity Securities, Realized Gain (Loss), Number of Securities Sold

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Other than Temporary Impairment Losses (Recoveries) Investments, Portion Recognized in Earnings, Trading Securities

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Trading Securities, Number of Securities in Nonaccrual Status

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This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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- Definition

Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired.

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The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis.

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Amount, before tax, of other-than-temporary impairment (OTTI) on investment in debt security measured at amortized cost (held-to-maturity), recognized in earnings.

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The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.

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Amount of cash inflow (outflow) from sales and purchases of trading securities.

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.

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Amount of gain (loss) realized from securities classified as trading.

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Amount of unrealized holding gain before loss recognized in the income statement for investments in trading securities.

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