Investment Securities

The cost basis and fair values of investment securities are summarized as follows (in thousands):

Investment securities available for sale (AFS):

	September 30, 2015
			Gross		Gross
	Cost		Unrealized		Unrealized			Fair
	Basis		Gains		Losses			Value
US Agency	$	2,900	$	1	$	(1	)	$	2,900
US Agency mortgage- backed securities		91,656		2,830		(144	)		94,342
Corporate bonds		17,505		71		(166	)		17,410
Total	$	112,061	$	2,902	$	(311	)	$	114,652

Investment securities held to maturity (HTM):

	September 30, 2015
			Gross		Gross
	Cost		Unrealized		Unrealized			Fair
	Basis		Gains		Losses			Value
US Agency mortgage- backed securities	$	11,208	$	374	$	(4	)	$	11,578
Taxable municipal		4,153		93		(12	)		4,234
Corporate bonds and other securities		5,000		17		(58	)		4,959
Total	$	20,361	$	484	$	(74	)	$	20,771

Investment securities available for sale (AFS):

	December 31, 2014
			Gross		Gross
	Cost		Unrealized		Unrealized			Fair
	Basis		Gains		Losses			Value
US Agency	$	5,931	$	21	$	(46	)	$	5,906
US Agency mortgage- backed securities		102,888		3,197		(317	)		105,768
Corporate bonds		15,497		61		(122	)		15,436
Total	$	124,316	$	3,279	$	(485	)	$	127,110

Investment securities held to maturity (HTM):

	December 31, 2014
			Gross		Gross
	Cost		Unrealized		Unrealized			Fair
	Basis		Gains		Losses			Value
US Agency mortgage- backed securities	$	12,481	$	395	$	(50	)	$	12,826
Taxable municipal		3,364		74		(24	)		3,414
Corporate bonds and other securities		3,995		6		(28	)		3,973
Total	$	19,840	$	475	$	(102	)	$	20,213

Maintaining investment quality is a primary objective of the Company's investment policy which, subject to certain limited exceptions, prohibits the purchase of any investment security below a Moody's Investor's Service or Standard & Poor's rating of "A." At September 30, 2015, 79.9% of the portfolio was rated "AAA” as compared to 84.1% at December 31, 2014. 5.7% of the portfolio was either rated below “A” or unrated at September 30, 2015. At September 30, 2015, the Company's consolidated investment securities portfolio had an effective duration of approximately 2.66 years.

The Company sold a $1.9 million AFS security for the third quarter of 2015 resulting in $36,000 of gross investment security losses and $2.4 million of AFS securities for the first nine months of 2015 resulting in $36,000 of gross investment security losses and $28,000 of gross investment security gains. There were no sales of AFS securities in the third quarter of 2014. Total proceeds from the sale of AFS securities for the first nine months of 2014 were $5.2 million resulting in $182,000 of gross investment security gains and $5,000 of gross security losses.

The book value of securities, both available for sale and held to maturity, pledged to secure public and trust deposits, and certain Federal Home Loan Bank borrowings was $103,478,000 at September 30, 2015 and $104,780,000 at December 31, 2014.

The following tables present information concerning investments with unrealized losses as of September 30, 2015 and December 31, 2014 (in thousands):

Total investment securities:

	September 30, 2015
	Less than 12 months					12 months or longer					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses			Value		Losses
US Agency	$	-	$	-		$	399	$	(1	)	$	399	$	(1	)
Taxable municipal		1,379		(12	)		-		-			1,379		(12	)
US Agency mortgage- backed securities		4,321		(15	)		9,554		(133	)		13,875		(148	)
Corporate bonds and other securities		5,904		(96	)		6,870		(128	)		12,774		(224	)
Total	$	11,604	$	(123	)	$	16,823	$	(262	)	$	28,427	$	(385	)

Total investment securities:

	December 31, 2014
	Less than 12 months					12 months or longer					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Losses			Value		Losses			Value		Losses
US Agency	$	996	$	(4	)	$	2,858	$	(42	)	$	3,854	$	(46	)
US Agency mortgage- backed securities		2,826		(13	)		20,408		(354	)		23,234		(367	)
Taxable municipal		150		(1	)		988		(23	)		1,138		(24	)
Corporate bonds and other securities		2,960		(43	)		8,891		(107	)		11,851		(150	)
Total	$	6,932	$	(61	)	$	33,145	$	(526	)	$	40,077	$	(587	)

The unrealized losses are primarily a result of increases in market yields from the time of purchase. In general, as market yields rise, the value of securities will decrease; as market yields fall, the fair value of securities will increase. There are 29 positions that are considered temporarily impaired at September 30, 2015. Management generally views changes in fair value caused by changes in interest rates as temporary; therefore, these securities have not been classified as other-than-temporarily impaired. Management has also concluded that based on current information we expect to continue to receive scheduled interest payments as well as the entire principal balance. Furthermore, management does not intend to sell these securities and does not believe it will be required to sell these securities before they recover in value.

Contractual maturities of securities at September 30, 2015 are shown below (in thousands). Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without prepayment penalties.

Total investment securities:

	September 30, 2015
	Available for sale				Held to maturity
	Cost Basis		Fair Value		Cost Basis		Fair Value

Within 1 year	$	1,000	$	998	$	1,000	$	997
After 1 year but within 5 years		12,266		12,335		2,000		1,945
After 5 years but within 10 years		21,133		21,524		6,767		6,851
After 10 years but within 15 years		46,838		48,068		1,397		1,389
Over 15 years		30,824		31,727		9,197		9,589
Total	$	112,061	$	114,652	$	20,361	$	20,771