INVESTMENT SECURITIES (Tables)

12 Months Ended

Dec. 31, 2016

INVESTMENT SECURITIES

Gross Amortized Cost and Fair Value of Securities Available for Sale and Related Gross Unrealized Gains and Losses Recognized in Accumulated Other Comprehensive Income (Loss)

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
December 31, 2016 (in thousands)	Cost		Gains		Losses		Value
U.S. Treasury securities and U.S. Government agencies	$	295,425	$	226	$	(1,107)	$	294,544
Private label mortgage backed security		3,691		1,086		—		4,777
Mortgage backed securities - residential		71,197		2,027		(220)		73,004
Collateralized mortgage obligations		88,559		334		(1,239)		87,654
Freddie Mac preferred stock		—		483		—		483
Community Reinvestment Act mutual fund		2,500		—		(45)		2,455
Corporate bonds		15,004		154		—		15,158
Trust preferred security		3,449		—		(249)		3,200
Total securities available for sale	$	479,825	$	4,310	$	(2,860)	$	481,275

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
December 31, 2015 (in thousands)	Cost		Gains		Losses		Value
U.S. Treasury securities and U.S. Government agencies	$	286,914	$	59	$	(494)	$	286,479
Private label mortgage backed security		4,037		1,095		—		5,132
Mortgage backed securities - residential		88,968		3,395		(95)		92,268
Collateralized mortgage obligations		113,972		748		(1,052)		113,668
Freddie Mac preferred stock		—		173		—		173
Community Reinvestment Act mutual fund		1,000		11		—		1,011
Corporate bonds		15,009		16		(103)		14,922
Trust preferred security		3,405		—		—		3,405
Total securities available for sale	$	513,305	$	5,497	$	(1,744)	$	517,058

Carrying Value, Gross Unrecognized Gains and Losses, and Fair Value of Securities to be Held to Maturity

			Gross		Gross
	Carrying		Unrecognized		Unrecognized		Fair
December 31, 2016 (in thousands)	Value		Gains		Losses		Value
U.S. Treasury securities and U.S. Government agencies	$	506	$	—	$	(2)	$	504
Mortgage backed securities - residential		158		12		—		170
Collateralized mortgage obligations		27,142		250		(124)		27,268
Corporate bonds		25,058		312		(63)		25,307
Total securities held to maturity	$	52,864	$	574	$	(189)	$	53,249

			Gross		Gross
	Carrying		Unrecognized		Unrecognized		Fair
December 31, 2015 (in thousands)	Value		Gains		Losses		Value
U.S. Treasury securities and U.S. Government agencies	$	515	$	1	$	—	$	516
Mortgage backed securities - residential		53		6		—		59
Collateralized mortgage obligations		33,159		464		—		33,623
Corporate bonds		5,000		—		(2)		4,998
Total securities held to maturity	$	38,727	$	471	$	(2)	$	39,196

Amortized Cost and Fair Value of Investment Securities Portfolio by Contractual Maturity

	Securities				Securities
	Available for Sale				Held to Maturity
	Amortized		Fair		Carrying		Fair
December 31, 2016 (in thousands)	Cost		Value		Value		Value
Due in one year or less	$	96,102	$	96,249	$	506	$	504
Due from one year to five years		204,327		203,328		5,075		5,013
Due from five years to ten years		10,000		10,125		19,983		20,294
Due beyond ten years		3,449		3,200		—		—
Private label mortgage backed security		3,691		4,777		—		—
Mortgage backed securities - residential		71,197		73,004		158		170
Collateralized mortgage obligations		88,559		87,654		27,142		27,268
Freddie Mac preferred stock		—		483		—		—
Community Reinvestment Act mutual fund		2,500		2,455		—		—
Total securities	$	479,825	$	481,275	$	52,864	$	53,249

Securities with Unrealized Losses, Aggregated by Investment Category with Continuous Unrealized Loss Position

	Less than 12 months				12 months or more				Total
			Unrealized				Unrealized				Unrealized
December 31, 2016 (in thousands)	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities available for sale:
U.S. Treasury securities and U.S. Government agencies	$	138,002	$	(1,107)	$	—	$	—	$	138,002	$	(1,107)
Mortgage backed securities - residential		9,427		(122)		4,211		(98)		13,638		(220)
Collateralized mortgage obligations		37,547		(690)		15,668		(549)		53,215		(1,239)
Community Reinvestment Act mutual fund		2,455		(45)		—		—		2,455		(45)
Trust preferred security		3,200		(249)		—		—		3,200		(249)
Total securities available for sale	$	190,631	$	(2,213)	$	19,879	$	(647)	$	210,510	$	(2,860)

	Less than 12 months				12 months or more				Total
			Unrealized				Unrealized				Unrealized
December 31, 2015 (in thousands)	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities available for sale:
U.S. Treasury securities and U.S. Government agencies	$	191,584	$	(433)	$	9,914	$	(61)	$	201,498	$	(494)
Mortgage backed securities - residential		5,727		(95)		—		—		5,727		(95)
Collateralized mortgage obligations		6,831		(212)		35,869		(840)		42,700		(1,052)
Corporate bonds		9,896		(103)		—		—		9,896		(103)
Total securities available for sale	$	214,038	$	(843)	$	45,783	$	(901)	$	259,821	$	(1,744)

	Less than 12 months				12 months or more				Total
			Unrealized				Unrealized				Unrealized
December 31, 2016 (in thousands)	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities held to maturity:
U.S. Treasury securities and U.S. Government agencies	$	506	$	(2)	$	—	$	—	$	506	$	(2)
Collateralized mortgage obligations		13,315		(124)		—		—		13,315		(124)
Corporate bonds		—		—		4,937		(63)		4,937		(63)
Total securities held to maturity	$	13,821	$	(126)	$	4,937	$	(63)	$	18,758	$	(189)

	Less than 12 months				12 months or more				Total
			Unrealized				Unrealized				Unrealized
December 31, 2015 (in thousands)	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities held to maturity:
Corporate bonds	$	4,998	$	(2)	$	—		—	$	4,998	$	(2)
Total securities held to maturity	$	4,998	$	(2)	$	—	$	—	$	4,998	$	(2)

Rollforward of the private label mortgage backed security credit losses

Years Ended December 31, (in thousands)	2016		2015		2014
Balance, beginning of period	$	1,765	$	1,800	$	1,941
Recovery of losses previously recorded		—		(35)		(141)
Realized pass through of actual losses		—		—		—
Balance, end of period	$	1,765	$	1,765	$	1,800

Pledged Investment Securities

December 31,  (in thousands)	2016		2015
Carrying amount	$	231,695	$	489,598
Fair value		231,891		490,074