MARKETABLE SECURITIES (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017 and December 31, 2016 and the corresponding amounts of gross unrealized gains and losses:



September 30, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available for sale:
Corporate bonds	$	18,842	$	178	$	—	$	19,020
Municipal securities	7,769		—		305		7,464
Mortgage-backed securities	91,801		20		863		90,958
Collateralized mortgage obligations	120,580		493		382		120,691
Total available for sale	$	238,992	$	691	$	1,550	$	238,133

Held to maturity:
Municipal securities	$	146,993	$	2,696	$	516	$	149,173
Mortgage-backed securities	23,337		278		66		23,549
Collateralized mortgage obligations	8,751		181		503		8,429
Total held to maturity	$	179,081	$	3,155	$	1,085	$	181,151



December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available for sale:
Corporate bonds	$	25,254	$	6	$	377	$	24,883
Municipal securities	7,841		—		622		7,219
Mortgage-backed securities	61,298		—		1,608		59,690
Collateralized mortgage obligations	65,789		10		666		65,133
Total available for sale	$	160,182	$	16	$	3,273	$	156,925

Held to maturity:
Municipal securities	$	149,420	$	901	$	3,889	$	146,432
Mortgage-backed securities	28,450		318		290		28,478
Collateralized mortgage obligations	11,501		265		521		11,245
Total held to maturity	$	189,371	$	1,484	$	4,700	$	186,155

Schedule of Securities with Gross Unrealized Losses

Information pertaining to securities with gross unrealized losses as of September 30, 2017 and December 31, 2016 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
September 30, 2017	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
Available for sale:
Corporate bonds	$	—		$	—	$	—		$	—	$	—		$	—
Municipal securities	—			—		(305		)	7,464		(305		)	7,464
Mortgage-backed securities	(556		)	72,802		(307		)	13,913		(863		)	86,715
Collateralized mortgage obligations	(244		)	42,825		(138		)	7,522		(382		)	50,347
Total available for sale	$	(800	)	$	115,627	$	(750	)	$	28,899	$	(1,550	)	$	144,526

Held to maturity:
Municipal securities	$	(258	)	$	39,090	$	(258	)	$	13,085	$	(516	)	$	52,175
Mortgage-backed securities	(66		)	10,562		—			—		(66		)	10,562
Collateralized mortgage obligations	—			—		(503		)	2,272		(503		)	2,272
Total held to maturity	$	(324	)	$	49,652	$	(761	)	$	15,357	$	(1,085	)	$	65,009



	Less Than 12 Months					12 Months or Longer					Total
December 31, 2016	Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value
Available for sale:
Corporate bonds	$	(377	)	$	22,529	$	—		$	—	$	(377	)	$	22,529
Municipal securities	(622		)	7,219		—			—		(622		)	7,219
Mortgage-backed securities	(1,047		)	44,420		(561		)	15,270		(1,608		)	59,690
Collateralized mortgage obligations	(437		)	55,435		(229		)	9,049		(666		)	64,484
Total available for sale	$	(2,483	)	$	129,603	$	(790	)	$	24,319	$	(3,273	)	$	153,922

Held to maturity:
Municipal securities	$	(3,889	)	$	98,943	$	—		$	—	$	(3,889	)	$	98,943
Mortgage-backed securities	(290		)	19,983		—			—		(290		)	19,983
Collateralized mortgage obligations	—			—		(521		)	2,350		(521		)	2,350
Total held to maturity	$	(4,179	)	$	118,926	$	(521	)	$	2,350	$	(4,700	)	$	121,276

Schedule of Proceeds from Sales of Securities

The proceeds from sales of securities and the associated gains and losses are listed below for:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2017		2016			2017			2016
Proceeds	$	199,974	$	31,969		$	214,736		$	109,056
Gross gains	—		96			38			243
Gross losses	—		(32		)	(13		)	(161		)

Schedule of Sale of Held To Maturity Securities

Sale of securities held to maturity were as follows for:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017			2016
Proceeds from sales	$	—	$	—	$	923		$	1,866
Amortized cost	—		—		907			1,842
Gross realized gains	—		—		16			24
Tax expense related to securities gains/losses	—		—		(4		)	(7		)

Investments Classified by Contractual Maturity Date

The contractual maturities at September 30, 2017 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
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	—	$	—	$	2,683	$	2,693
Due after one year through five years	1,086		1,096		5,126		5,292
Due after five years through ten years	17,756		17,924		43,228		44,785
Due after ten years	7,769		7,464		95,956		96,403
Mortgage-backed securities	91,801		90,958		23,337		23,549
Collateralized mortgage obligations	120,580		120,691		8,751		8,429
Total Securities	$	238,992	$	238,133	$	179,081	$	181,151