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INVESTMENT SECURITIES - Contractual Maturities of Investment Securities (Details) $ in Thousands	Mar. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
INVESTMENT SECURITIES
Number of securities continuous unrealized loss position more than twelve months | security	152	114
Available for Sale Amortized Cost
Due within one year	$ 1,197
Due over one to five years	1,817
Due over five to ten years	18,097
Due over ten years	71,733
Amortized Cost	92,844	$ 90,268
Available for Sale Fair Value
Due within one year	1,207
Due over one to five years	1,793
Due over five to ten years	17,582
Due over ten years	69,747
Fair Value	$ 90,329	$ 89,349
Available for Sale, Yield
Within one year	3.84%
Over one to five years	1.71%
Over five to ten years	2.23%
Over ten years	2.74%

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Weighted average yield of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing after tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Weighted average yield of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months

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