SECURITIES (Tables)

12 Months Ended

Dec. 31, 2018

Amortized Cost and Fair Value of Securities Available-for-Sale

The amortized cost and fair value of available-for-sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows.

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
December 31, 2018
Available-for-sale securities
Residential mortgage-backed securities (issued by    government-sponsored entities)	$	173,503	$	12	$	(4,640	)	$	168,875
	$	173,503	$	12	$	(4,640	)	$	168,875
December 31, 2017
Available-for-sale securities
Residential mortgage-backed securities (issued by    government-sponsored entities)	$	163,374	$	36	$	(1,819	)	$	161,591
State and political subdivisions		195	—			—			195
Equity securities		500		—		(14	)		486
	$	164,069	$	36	$	(1,833	)	$	162,272

Amortized Cost and Fair Value of Securities Held-to-Maturity

The amortized cost and fair value of held-to-maturity securities and the related gross unrecognized gains and losses were as follows.

	Amortized Cost		Gross Unrecognized Gains		Gross Unrecognized Losses			Fair Value
December 31, 2018
Held-to-maturity securities
U.S. Government-sponsored entities	$	3,873	$	7	$	(20	)	$	3,860
Residential mortgage-backed securities (issued by    government sponsored entities)		567,766		2,354		(9,653	)		560,467
Corporate		22,993		234		(326	)		22,901
Small Business Administration loan pools		1,746	—			(18	)		1,728
State and political subdivisions		151,978		804		(1,749	)		151,033
	$	748,356	$	3,399	$	(11,766	)	$	739,989
December 31, 2017
Held-to-maturity securities
U.S. Government-sponsored entities	$	998	$	—	$	(13	)	$	985
Residential mortgage-backed securities (issued by    government sponsored entities)		383,875		573		(4,866	)		379,582
Corporate		22,991		355	—				23,346
Small Business Administration loan pools		2,048	—			(14	)		2,034
State and political subdivisions		125,550		1,694		(447	)		126,797
	$	535,462	$	2,622	$	(5,340	)	$	532,744

Fair Value and Amortized Cost of Debt Securities by Contractual Maturity

The fair value and amortized cost of debt securities at December 31, 2018, by contractual maturity, is shown below.  Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.  Securities not due at a single maturity date, primarily mortgage-backed securities, are shown separately.

	Available-for-Sale				Held-to-Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	—	$	—	$	6,425	$	6,474
One to five years	—		—			36,413		36,586
Five to ten years	—		—			54,205		54,275
After ten years	—		—			83,547		82,187
Mortgage-backed securities		173,503		168,875		567,766		560,467
Total debt securities	$	173,503	$	168,875	$	748,356	$	739,989

Proceeds from Sales and Associated Gains and Losses Reclassified from Other comprehensive Income to Income

The proceeds from sales and the associated gains and losses on available-for-sale securities reclassified from other comprehensive income to income are listed below.

	2018		2017		2016
Proceeds	$	—	$	84,087	$	70,957
Gross gains		—		271		893
Gross losses		—		—		—
Income tax expense on net realized gains		—		103		342

Available for Sale Securities [Member]

Summary of Gross Unrealized Losses and Fair Value of Securities

The following tables show gross unrealized losses and fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2018 and 2017.

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
December 31, 2018
Available-for-sale securities
Residential mortgage-backed (issued by    government-sponsored entities)	$	48,332	$	(575	)	$	115,844	$	(4,065	)	$	164,176	$	(4,640	)
Total temporarily impaired securities	$	48,332	$	(575	)	$	115,844	$	(4,065	)	$	164,176	$	(4,640	)
December 31, 2017
Available-for-sale securities
Residential mortgage-backed (issued by    government-sponsored entities)	$	78,884	$	(437	)	$	58,540	$	(1,382	)	$	137,424	$	(1,819	)
Equity securities		—		—			486		(14	)		486		(14	)
Total temporarily impaired securities	$	78,884	$	(437	)	$	59,026	$	(1,396	)	$	137,910	$	(1,833	)

Held to Maturity Securities [Member]

Summary of Gross Unrealized Losses and Fair Value of Securities

	Less Than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
December 31, 2018
Held-to-maturity securities
U.S. Government-sponsored entities	$	1,882	$	(3	)	$	982	$	(17	)	$	2,864	$	(20	)
Residential mortgage-backed (issued by    government-sponsored entities)		31,270		(356	)		294,127		(10,579	)		325,397		(10,935	)
Corporate		7,500		(326	)		5,182		(49	)		12,682		(375	)
Small Business Administration loan pools		—		—			1,728		(37	)		1,728		(37	)
State and political subdivisions		40,415		(473	)		45,137		(1,561	)		85,552		(2,034	)
Total temporarily impaired securities	$	81,067	$	(1,158	)	$	347,156	$	(12,243	)	$	428,223	$	(13,401	)
December 31, 2017
Held-to-maturity securities
U.S. Government-sponsored entities	$	—	$	—		$	985	$	(13	)	$	985	$	(13	)
Residential mortgage-backed (issued by    government-sponsored entities)		147,281		(1,263	)		198,239		(5,030	)		345,520		(6,293	)
Corporate		5,312		(16	)		—		—			5,312		(16	)
Small Business Administration loan pools		926		(1	)		1,108		(38	)		2,034		(39	)
State and political subdivisions		22,100		(123	)		26,387		(439	)		48,487		(562	)
Total temporarily impaired securities	$	175,619	$	(1,403	)	$	226,719	$	(5,520	)	$	402,338	$	(6,923	)