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Securities (Tables)

12 Months Ended

Dec. 31, 2017

Securities

Schedule of amortized cost and fair value of the securities portfolio and corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive loss

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2017		Cost			Gains			Losses			Value
Securities available-for-sale
U.S. Treasuries		$	4,002		$	-		$	(55)		$	3,947
U.S. government agencies			13,062			8			(9)			13,061
U.S. government agencies mortgage-backed			12,372			7			(165)			12,214
States and political subdivisions			272,240			7,116			(1,264)			278,092
Corporate bonds			823			21			(11)			833
Collateralized mortgage obligations			66,892			202			(1,155)			65,939
Asset-backed securities			113,983			862			(1,913)			112,932
Collateralized loan obligations			54,271			251			(101)			54,421
Total securities available-for-sale		$	537,645		$	8,467		$	(4,673)		$	541,439

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2016		Cost			Gains			Losses			Value
Securities available-for-sale
U.S. government agencies mortgage-backed		$	42,511		$	-		$	(977)		$	41,534
States and political subdivisions			68,718			258			(273)			68,703
Corporate bonds			10,957			9			(336)			10,630
Collateralized mortgage obligations			174,352			374			(3,799)			170,927
Asset-backed securities			146,391			341			(8,325)			138,407
Collateralized loan obligations			102,504			29			(896)			101,637
Total securities available-for-sale		$	545,433		$	1,011		$	(14,606)		$	531,838

Schedule of fair value, amortized cost and weighted average yield of debt securities by contractual maturity along with securities not due at a single maturity date, primarily mortgage-backed securities (MBS), asset-backed securities, and collateralized loan obligations

					Weighted
		Amortized			Average			Fair
Securities available-for-sale		Cost			Yield			Value
Due in one year or less		$	6,200		2.41	%		$	6,185
Due after one year through five years			4,346		2.03				4,279
Due after five years through ten years			6,013		3.29				6,234
Due after ten years			273,568		2.95				279,235
			290,127		2.93				295,933
Mortgage-backed and collateralized mortgage obligations			79,264		2.94				78,153
Asset-backed securities			113,983		2.56				112,932
Collateralized loan obligations			54,271		4.32				54,421
Total securities available-for-sale		$	537,645		2.99	%		$	541,439

Schedule of securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position

		Less than 12 months								12 months or more
December 31, 2017		in an unrealized loss position								in an unrealized loss position								Total
		Number of		Unrealized			Fair			Number of		Unrealized			Fair			Number of		Unrealized			Fair
Securities available-for-sale		Securities		Losses			Value			Securities		Losses			Value			Securities		Losses			Value
U.S. Treasuries		1		$	55		$	3,947		-		$	-		$	-		1		$	55		$	3,947
U.S. government agencies		2			9			6,550		-			-			-		2			9			6,550
U.S. government agencies mortgage-backed		4			24			5,501		5			141			4,843		9			165			10,344
States and political subdivisions		13			1,237			45,985		1			27			1,512		14			1,264			47,497
Corporate bonds		-			-			-		1			11			332		1			11			332
Collateralized mortgage obligations		3			31			11,534		8			1,124			40,219		11			1,155			51,753
Asset-backed securities		-			-			-		7			1,913			61,745		7			1,913			61,745
Collateralized loan obligations		3			101			29,313		-			-			-		3			101			29,313
Total securities available-for-sale		26		$	1,457		$	102,830		22		$	3,216		$	108,651		48		$	4,673		$	211,481

		Less than 12 months								12 months or more
December 31, 2016		in an unrealized loss position								in an unrealized loss position								Total
		Number of		Unrealized				Fair		Number of		Unrealized				Fair		Number of		Unrealized				Fair
Securities available-for-sale		Securities		Losses				Value		Securities		Losses				Value		Securities		Losses				Value
U.S. government agencies mortgage-backed		11		$	957		$	40,636		1		$	20		$	898		12		$	977		$	41,534
States and political subdivisions		12			273			35,241		-			-			-		12			273			35,241
Corporate bonds		1			183			4,817		2			153			5,328		3			336			10,145
Collateralized mortgage obligations		16			3,402			117,752		7			397			18,109		23			3,799			135,861
Asset-backed securities		4			328			17,604		12			7,997			107,112		16			8,325			124,716
Collateralized loan obligations		-			-			-		12			896			81,613		12			896			81,613
Total securities available-for-sale		44		$	5,143		$	216,050		34		$	9,463		$	213,060		78		$	14,606		$	429,110

Schedule of proceeds from sale and gross realized gains and losses on sale of securities

			Years ended December 31,
Securities available-for-sale			2017			2016			2015
Proceeds from sales of securities			$	232,462		$	306,400		$	70,176
Gross realized gains on securities				2,367			1,675			106
Gross realized losses on securities				(1,893)			(3,888)			(284)
Securities realized gains (losses), net			$	474		$	(2,213)		$	(178)
Income tax expense (benefit) on net realized gains (losses)			$	198		$	(882)		$	(71)

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities and held-to-maturity securities from cost basis to fair value.

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Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563

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For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

+ References

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

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