INVESTMENT SECURITIES - Investments in Securities Classified as Available for Sale or Held To Maturity (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2016	Dec. 31, 2015
Available for Sale
Amortized Cost	$ 274,414	$ 283,185
Gross Unrealized Gains	5,699	1,963
Gross Unrealized Losses	(35)	(1,694)
Fair Value	280,078	283,454
Held to Maturity
Amortized Cost	111,070	119,674
Gross Unrealized Gains	3,563	1,135
Gross Unrealized Losses	(42)	(716)
Fair Value	114,591	120,093
U.S. Treasury Obligations
Available for Sale
Amortized Cost	25,072	25,064
Gross Unrealized Gains	353	61
Gross Unrealized Losses		(12)
Fair Value	25,425	25,113
U.S. Agency Obligations
Held to Maturity
Amortized Cost	18,964	20,084
Gross Unrealized Gains	971	486
Fair Value	19,935	20,570
U.S. GSEs
Available for Sale
Amortized Cost	41,246	20,895
Gross Unrealized Gains	704	3
Gross Unrealized Losses		(104)
Fair Value	41,950	20,794
Held to Maturity
Amortized Cost	9,585	9,556
Gross Unrealized Gains	416	166
Fair Value	10,001	9,722
FHLB Obligations
Available for Sale
Amortized Cost	40,078	51,230
Gross Unrealized Gains	1,014	107
Gross Unrealized Losses		(226)
Fair Value	41,092	51,111
Held to Maturity
Amortized Cost	4,777	4,758
Gross Unrealized Gains	224	76
Fair Value	5,001	4,834
Agency MBSs
Available for Sale
Amortized Cost	85,668	96,073
Gross Unrealized Gains	2,506	1,688
Gross Unrealized Losses	(3)	(512)
Fair Value	88,171	97,249
Held to Maturity
Amortized Cost	6,516	7,027
Gross Unrealized Gains	318	154
Fair Value	6,834	7,181
Agency CMBSs
Available for Sale
Amortized Cost	24,342	24,950
Gross Unrealized Gains	366
Gross Unrealized Losses		(397)
Fair Value	24,708	24,553
Agency CMOs
Available for Sale
Amortized Cost	57,707	64,648
Gross Unrealized Gains	719	74
Gross Unrealized Losses	(32)	(443)
Fair Value	58,394	64,279
Held to Maturity
Amortized Cost	71,228	78,249
Gross Unrealized Gains	1,634	253
Gross Unrealized Losses	(42)	(716)
Fair Value	72,820	77,786
ABSs
Available for Sale
Amortized Cost	301	325
Gross Unrealized Gains	37	30
Fair Value	$ 338	$ 355

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

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Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

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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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Fair value of investments in debt securities classified as held-to-maturity.

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Amount of unrecognized gain before loss on investments in held-to-maturity securities.

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Amount of unrecognized loss before gain on investments in held-to-maturity securities. Excludes write-down for other than temporary impairment (OTTI).

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