Investment Securities (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Amortized Cost and Fair Values of Investment Securities Available-for-sale

Amortized cost and fair values of investment securities available-for-sale at September 30, 2017 are summarized as follows:

(Dollars in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U. S. Agency securities	$	55,895	$	69	$	(347	)	$	55,617
U.S. Sponsored Mortgage-backed securities	55,602		61		(944		)	54,719
Municipal securities	60,822		1,077		(503		)	61,396
Total debt securities	172,319		1,207		(1,794		)	171,732
Equity and other securities	14,991		625		—			15,616
Total investment securities available-for-sale	$	187,310	$	1,832	$	(1,794	)	$	187,348

Amortized cost and fair values of investment securities available-for-sale at December 31, 2016 are summarized as follows:

(Dollars in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U. S. Agency securities	$	29,234	$	7	$	(425	)	$	28,816
U.S. Sponsored Mortgage-backed securities	56,080		14		(1,362		)	54,732
Municipal securities	72,075		744		(2,023		)	70,796
Total debt securities	157,389		765		(3,810		)	154,344
Equity and other securities	7,643		381		—			8,024
Total investment securities available-for-sale	$	165,032	$	1,146	$	(3,810	)	$	162,368

Amortized Cost and Fair Values of Debt Securities by Maturity

The following table summarizes amortized cost and fair values of debt securities by maturity:
	September 30, 2017
	Available for sale
(Dollars in thousands)	Amortized Cost		Fair Value
Within one year	$	300	$	301
After one year, but within five	13,311		13,768
After five years, but within ten	32,703		32,449
After ten years	126,005		125,214
Total	$	172,319	$	171,732

Investments in an Unrealized Loss Position

The following table discloses investments in an unrealized loss position at September 30, 2017:

(Dollars in thousands)	Less than 12 months					12 months or more
Description and number of positions	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Agency securities (23)	$	29,921	$	(206	)	$	6,859	$	(141	)
U.S. Sponsored Mortgage-backed securities (33)	19,186		(287		)	27,400		(657		)
Municipal securities (48)	7,246		(74		)	18,589		(429		)
Equity and other securities (0)	$	—	$	—		$	—	$	—
	$	56,353	$	(567	)	$	52,848	$	(1,227	)

The following table discloses investments in an unrealized loss position at December 31, 2016:

(Dollars in thousands)	Less than 12 months					12 months or more
Description and number of positions	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Agency securities (16)	$	28,814	$	(425	)	$	—	$	—
U.S. Sponsored Mortgage-backed securities (29)	33,209		(1,040		)	13,919		(322		)
Municipal securities (86)	42,727		(2,023		)	—		—
	$	104,750	$	(3,488	)	$	13,919	$	(322	)