INVESTMENT SECURITIES - Schedule of unrealized/unrecognized loss position of securities available-for-sale (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Available-for-sale Securities [Abstract]
Less than 12 Months, Estimated Fair Value	$ 10,826	$ 9,194
Less than 12 Months, Unrealized/Unrecognized Losses	(236)	(85)
12 months or more, Estimated Fair Value	15,336	14,102
12 months or more, Unrealized/Unrecognized Losses	(804)	(343)
Total, Estimated Fair Value	26,162	23,296
Total, Unrealized/Unrecognized Losses	(1,040)	(428)
Residential mortgage-backed securities
Available-for-sale Securities [Abstract]
Less than 12 Months, Estimated Fair Value	10,826	9,194
Less than 12 Months, Unrealized/Unrecognized Losses	(236)	(85)
12 months or more, Estimated Fair Value	11,054	7,738
12 months or more, Unrealized/Unrecognized Losses	(551)	(157)
Total, Estimated Fair Value	21,880	16,932
Total, Unrealized/Unrecognized Losses	(787)	(242)
Residential collateralized mortgage obligations
Available-for-sale Securities [Abstract]
Less than 12 Months, Estimated Fair Value	0	0
Less than 12 Months, Unrealized/Unrecognized Losses	0	0
12 months or more, Estimated Fair Value	2,205	2,706
12 months or more, Unrealized/Unrecognized Losses	(135)	(103)
Total, Estimated Fair Value	2,205	2,706
Total, Unrealized/Unrecognized Losses	(135)	(103)
Commercial collateralized mortgage obligations
Available-for-sale Securities [Abstract]
Less than 12 Months, Estimated Fair Value		0
Less than 12 Months, Unrealized/Unrecognized Losses		0
12 months or more, Estimated Fair Value		1,550
12 months or more, Unrealized/Unrecognized Losses		(31)
Total, Estimated Fair Value		1,550
Total, Unrealized/Unrecognized Losses		(31)
CRA mutual fund
Available-for-sale Securities [Abstract]
Less than 12 Months, Estimated Fair Value	0	0
Less than 12 Months, Unrealized/Unrecognized Losses	0	0
12 months or more, Estimated Fair Value	2,077	2,108
12 months or more, Unrealized/Unrecognized Losses	(118)	(52)
Total, Estimated Fair Value	2,077	2,108
Total, Unrealized/Unrecognized Losses	$ (118)	$ (52)

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- Definition

This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer.

+ References

No definition available.

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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months.

+ References

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- Definition

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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- Definition

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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