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SECURITIES AVAILABLE FOR SALE - Amortized Cost and Fair Values of Investment Securities Available for Sale (Details) - Debt Securities - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Amortized Cost
Totals	$ 457,633	$ 411,706
Gross Unrealized Gains
Totals	3,079	7,496
Gross Unrealized Losses
Totals	5,912	3,894
Fair Value
Totals	454,800	415,308
States and political subdivisions
Amortized Cost
Totals	181,682	153,803
Gross Unrealized Gains
Totals	2,755	6,133
Gross Unrealized Losses
Totals	1,644	478
Fair Value
Totals	182,793	159,458
GSE residential MBSs
Amortized Cost
Totals		48,600
Gross Unrealized Gains
Totals		930
Gross Unrealized Losses
Totals		0
Fair Value
Totals		49,530
GSE residential CMOs
Amortized Cost
Totals	120,291	113,658
Gross Unrealized Gains
Totals	156	296
Gross Unrealized Losses
Totals	3,492	2,835
Fair Value
Totals	116,955	111,119
Private label residential CMOs
Amortized Cost
Totals	849	999
Gross Unrealized Gains
Totals	4	4
Gross Unrealized Losses
Totals	0	0
Fair Value
Totals	853	1,003
Private label commercial CMOs
Amortized Cost
Totals	12,914	7,809
Gross Unrealized Gains
Totals	0	0
Gross Unrealized Losses
Totals	225	156
Fair Value
Totals	12,689	7,653
Asset-backed and other
Amortized Cost
Totals	141,897	86,837
Gross Unrealized Gains
Totals	164	133
Gross Unrealized Losses
Totals	551	425
Fair Value
Totals	$ 141,510	$ 86,545

X

- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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