Investment Securities (Tables)

12 Months Ended

Dec. 31, 2016

Investment Securities [Abstract]

Amortized cost, gross unrealized gains and losses, and fair value of available-for-sale investment securities

As of December 31, 2016
			Gross		Gross
	Amortized		unrealized		unrealized
(In thousands)	cost		gains		losses		Fair value
U.S. government agencies	$	988	$	—	$	(22)	$	966
Mortgage-backed securities-residential		6,985		70		(17)		7,038
Collateralized mortgage obligations:
Issued or guaranteed by U.S. government agencies		146,666		1,022		(2,129)		145,559
Non-agency		4,121		—		(86)		4,035
Corporate bonds		1,700		1		—		1,701
Municipal bonds		8,691		92		(75)		8,708
Other securities		1,821		—		—		1,821
Common stocks		26		—		—		26
Total available for sale	$	170,998	$	1,185	$	(2,329)	$	169,854

As of December 31, 2015
			Gross		Gross
	Amortized		unrealized		unrealized
(In thousands)	cost		gains		losses		Fair value
U.S. government agencies	$	26,127	$	—	$	(564)	$	25,563
Mortgage-backed securities-residential		11,002		106		(50)		11,058
Collateralized mortgage obligations:
Issued or guaranteed by U.S. government agencies		170,764		1,524		(1,554)		170,734
Non-agency		2,729		1		(26)		2,704
Corporate bonds		1,500		56		—		1,556
Municipal bonds		9,910		73		(52)		9,931
Other securities		2,050		445		—		2,495
Common stocks		26		—		—		26
Total available for sale	$	224,108	$	2,205	$	(2,246)	$	224,067

Amortized cost and fair value of investment securities, by contractual maturity

	As of December 31, 2016
	Amortized
(In thousands)	cost		Fair value
Within 1 year	$	—	$	—
After 1 but within 5 years		5,282		5,233
After 5 but within 10 years		5,097		5,141
After 10 years		1,000		1,001
Mortgage-backed securities-residential		6,985		7,038
Collateralized mortgage obligations:
Issued or guaranteed by U.S. government agencies		146,666		145,559
Non-agency		4,121		4,035
Total available for sale debt securities		169,151		168,007
No contractual maturity		1,847		1,847
Total available for sale securities	$	170,998	$	169,854

Gross realized gains and losses realized on sale of securities

	For the year ended
	December 31,
(In thousands)	2016		2015
Gross realized gains	$	1,475	$	925
Gross realized losses		(44)		(25)
Net realized gains	$	1,431	$	900

Investment securities in a continuous unrealized loss position

December 31, 2016	Less than 12 months					12 months or longer					Total
			Gross		Number			Gross		Number			Gross		Number
			unrealized		of			unrealized		of			unrealized		of
(In thousands)	Fair value		losses		positions	Fair value		losses		positions	Fair value		losses		positions
U.S. government agencies	$	966	$	(22)	1	$	—	$	—	—	$	966	$	(22)	1
Mortgage-backed securities-residential		4,237		(17)	2		—		—	—		4,237		(17)	2
Collateralized mortgage obligations:
Issued or guaranteed by U.S. government agencies		73,864		(1,630)	31		12,045		(499)	4		85,909		(2,129)	35
Non-agency		4,035		(86)	3		—		—	—		4,035		(86)	3
Municipal bonds		1,678		(45)	3		2,314		(30)	3		3,992		(75)	6
Total available for sale	$	84,780	$	(1,800)	40	$	14,359	$	(529)	7	$	99,139	$	(2,329)	47

December 31, 2015	Less than 12 months					12 months or longer					Total
			Gross		Number			Gross		Number			Gross		Number
			unrealized		of			unrealized		of			unrealized		of
(In thousands)	Fair value		losses		positions	Fair value		losses		positions	Fair value		losses		positions
U.S. government agencies	$	6,681	$	(57)	2	$	18,882	$	(507)	6	$	25,563	$	(564)	8
Mortgage-backed securities-residential		5,140		(5)	2		2,574		(45)	1		7,714		(50)	3
Collateralized mortgage obligations:
Issued or guaranteed by U.S. government agencies		87,020		(994)	31		15,644		(560)	5		102,664		(1,554)	36
Non-agency		1,101		(26)	1		—		—	—		1,101		(26)	1
Municipal bonds		6,080		(52)	7		—		—	—		6,080		(52)	7
Total available for sale	$	106,022	$	(1,134)	43	$	37,100	$	(1,112)	12	$	143,122	$	(2,246)	55