MARKETABLE SECURITIES (Tables)

3 Months Ended

Mar. 31, 2019

Investments Debt And Equity Securities [Abstract]

Schedule of Amortized Cost and Fair Value of Available for Sale and Held to Maturity Securities

The following tables summarize the amortized cost and fair value of securities available for sale and securities held to maturity as of March 31, 2019 and December 31, 2018 and the corresponding amounts of gross unrealized gains and losses:

March 31, 2019	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available for sale:
Corporate bonds	$	19,724	$	47	$	27	$	19,744
Municipal securities		15,742		201		61		15,882
Mortgage-backed securities		95,322		269		1,845		93,746
Collateralized mortgage obligations		108,002		184		579		107,607
Total available for sale	$	238,790	$	701	$	2,512	$	236,979
Held to maturity:
Municipal securities	$	140,712	$	2,525	$	254	$	142,983
Mortgage-backed securities		16,521		93		313		16,301
Collateralized mortgage obligations		3,747		90		11		3,826
Total held to maturity	$	160,980	$	2,708	$	578	$	163,110

December 31, 2018	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available for sale:
Corporate bonds	$	19,743	$	—	$	789	$	18,954
Municipal securities		15,778		75		260		15,593
Mortgage-backed securities		93,083		52		3,676		89,459
Collateralized mortgage obligations		111,341		—		2,372		108,969
Total available for sale	$	239,945	$	127	$	7,097	$	232,975
Held to maturity:
Municipal securities	$	141,942	$	1,156	$	1,094	$	142,004
Mortgage-backed securities		17,163		54		500		16,717
Collateralized mortgage obligations		4,059		48		28		4,079
Total held to maturity	$	163,164	$	1,258	$	1,622	$	162,800

Schedule of Securities with Gross Unrealized Losses

Information pertaining to securities with gross unrealized losses as of March 31, 2019 and December 31, 2018 aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position is detailed in the following tables:

	Less Than 12 Months					12 Months or Longer					Total
March 31, 2019	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
Available for sale:
Corporate bonds	$	—		$	—	$	(27	)	$	5,013	$	(27	)	$	5,013
Municipal securities		(1	)		382		(60	)		7,567		(61	)		7,949
Mortgage-backed securities		(24	)		2,538		(1,821	)		72,062		(1,845	)		74,600
Collateralized mortgage obligations		—			—		(579	)		72,116		(579	)		72,116
Total available for sale	$	(25	)	$	2,920	$	(2,487	)	$	156,758	$	(2,512	)	$	159,678
Held to maturity:
Municipal securities	$	(4	)	$	1,550	$	(250	)	$	22,613	$	(254	)	$	24,163
Mortgage-backed securities		—			—		(313	)		12,062		(313	)		12,062
Collateralized mortgage obligations		—			—		(11	)		2,026		(11	)		2,026
Total held to maturity	$	(4	)	$	1,550	$	(574	)	$	36,701	$	(578	)	$	38,251

	Less Than 12 Months					12 Months or Longer					Total
December 31, 2018	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
Available for sale:
Corporate bonds	$	(453	)	$	11,236	$	(336	)	$	7,718	$	(789	)	$	18,954
Municipal securities		(17	)		2,219		(243	)		7,407		(260	)		9,626
Mortgage-backed securities		(89	)		7,173		(3,587	)		76,717		(3,676	)		83,890
Collateralized mortgage obligations		(79	)		9,232		(2,293	)		99,390		(2,372	)		108,622
Total available for sale	$	(638	)	$	29,860	$	(6,459	)	$	191,232	$	(7,097	)	$	221,092
Held to maturity:
Municipal securities	$	(512	)	$	55,793	$	(582	)	$	26,511	$	(1,094	)	$	82,304
Mortgage-backed securities		(21	)		1,478		(479	)		12,317		(500	)		13,795
Collateralized mortgage obligations		(28	)		2,171		—			—		(28	)		2,171
Total held to maturity	$	(561	)	$	59,442	$	(1,061	)	$	38,828	$	(1,622	)	$	98,270

Investments Classified by Contractual Maturity Date

The contractual maturities at March 31, 2019 of available for sale and held to maturity securities at carrying value and estimated fair value are shown below.  The Company invests in mortgage-backed securities and collateralized mortgage obligations that have expected maturities that differ from their contractual maturities.  These differences arise because borrowers and/or issuers may have the right to call or prepay their obligation with or without call or prepayment penalties.

	Available for Sale				Held to Maturity
March 31, 2019	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	—	$	—	$	990	$	996
Due after one year through five years		12,110		12,150		28,477		29,093
Due after five years through ten years		15,729		15,909		34,557		35,627
Due after ten years		7,627		7,567		76,688		77,267
Mortgage-backed securities		95,322		93,746		16,521		16,301
Collateralized mortgage obligations		108,002		107,607		3,747		3,826
Total Securities		238,790		236,979		160,980		163,110