SECURITIES - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Available-for-sale:
Available-for-sale, Amortized Cost	$ 634,115	$ 715,507
Gross Unrealized Gains	30	431
Gross Unrealized Losses	(23,651)	(10,399)
Available-for-sale securities, at fair value	610,494	705,539
Held-to-maturity:
Held-to-maturity, Amortized Cost	62,595	13,275
Gross Unrealized Gains	96	61
Gross Unrealized Losses	(1,024)	(190)
Held-to-maturity, fair value	61,667	13,146
SBA guaranteed securities
Available-for-sale:
Available-for-sale, Amortized Cost	95,638	104,111
Gross Unrealized Gains	13	129
Gross Unrealized Losses	(2,296)	(948)
Available-for-sale securities, at fair value	93,355	103,292
Mortgage-backed securities issued by U.S. government agencies or sponsored enterprises: residential
Available-for-sale:
Available-for-sale, Amortized Cost	219,222	250,580
Gross Unrealized Gains	0	297
Gross Unrealized Losses	(8,852)	(1,701)
Available-for-sale securities, at fair value	210,370	249,176
Held-to-maturity:
Held-to-maturity, Amortized Cost	10,794	10,841
Gross Unrealized Gains	15	61
Gross Unrealized Losses	(483)	(170)
Held-to-maturity, fair value	10,326	10,732
Mortgage-backed securities issued by U.S. government agencies or sponsored enterprises: commercial
Available-for-sale:
Available-for-sale, Amortized Cost	54,792	65,986
Gross Unrealized Losses	(2,955)	(500)
Available-for-sale securities, at fair value	51,837	65,486
Held-to-maturity:
Held-to-maturity, Amortized Cost	2,488
Gross Unrealized Losses	(142)
Held-to-maturity, fair value	2,346
Collateralized mortgage obligations issued by U.S. government agencies or sponsored enterprises: residential
Available-for-sale:
Available-for-sale, Amortized Cost	212,400	234,881
Gross Unrealized Gains	0
Gross Unrealized Losses	(8,005)	(6,434)
Available-for-sale securities, at fair value	204,395	228,447
Held-to-maturity:
Held-to-maturity, Amortized Cost	43,130	2,434
Gross Unrealized Gains	81
Gross Unrealized Losses	(289)	(20)
Held-to-maturity, fair value	42,922	2,414
Collateralized mortgage obligations issued by U.S. government agencies or sponsored enterprises: commercial
Available-for-sale:
Available-for-sale, Amortized Cost	35,910	36,151
Gross Unrealized Losses	(1,466)	(472)
Available-for-sale securities, at fair value	34,444	35,679
Corporate debt securities
Available-for-sale:
Available-for-sale, Amortized Cost	15,917	5,789
Gross Unrealized Gains	17	5
Gross Unrealized Losses	(77)
Available-for-sale securities, at fair value	15,857	5,794
Obligations of municipal subdivisions
Available-for-sale:
Available-for-sale, Amortized Cost	236	6,672
Gross Unrealized Gains	0
Gross Unrealized Losses		(45)
Available-for-sale securities, at fair value	236	6,627
Held-to-maturity:
Held-to-maturity, Amortized Cost	6,183
Gross Unrealized Gains	0
Gross Unrealized Losses	(110)
Held-to-maturity, fair value	$ 6,073
CRA qualified investment fund
Available-for-sale:
Available-for-sale, Amortized Cost		11,337
Gross Unrealized Losses		(299)
Available-for-sale securities, at fair value		$ 11,038

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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