Securities (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Summary of Securities Available-for-Sale and Restricted Stock

Securities consist of the following at September 30, 2017 and December 31, 2016:

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
September 30, 2017
Available-for-sale
U.S. Treasury security	$	999	$	—	$	1	$	998
U.S. Government agencies		8,350		—		50		8,300
Mortgage-backed securities of government agencies		50,452		340		286		50,506
Asset-backed securities of government agencies		1,198		—		4		1,194
State and political subdivisions		27,166		385		74		27,477
Corporate bonds		9,580		70		167		9,483
Equity securities		53		37		—		90
Total available-for-sale		97,798		832		582		98,048
Held-to-maturity
U.S. Government agencies		9,475		21		153		9,343
Mortgage-backed securities of government agencies		12,300		170		96		12,374
State and political subdivisions		4,700		14		—		4,714
Total held-to-maturity		26,475		205		249		26,431
Restricted stock		4,614		—		—		4,614
Total securities	$	128,887	$	1,037	$	831	$	129,093
December 31, 2016
Available-for-sale
U.S. Treasury security	$	1,001	$	—	$	—	$	1,001
U.S. Government agencies		6,500		—		98		6,402
Mortgage-backed securities of government agencies		56,187		239		589		55,837
Other mortgage-backed securities		65		—		—		65
Asset-backed securities of government agencies		1,312		—		46		1,266
State and political subdivisions		30,007		140		439		29,708
Corporate bonds		9,632		28		144		9,516
Equity securities		53		27		—		80
Total available-for-sale		104,757		434		1,316		103,875
Held-to-maturity
U.S. Government agencies		9,472		17		396		9,093
Mortgage-backed securities of government agencies		14,411		141		201		14,351
Total held-to-maturity		23,883		158		597		23,444
Restricted stock		4,614		—		—		4,614
Total securities	$	133,254	$	592	$	1,913	$	131,933

Summary of Amortized Cost and Fair Value of Debt Securities

The amortized cost and fair value of debt securities at September 30, 2017, by contractual maturity, are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

(Dollars in thousands)	Amortized cost		Fair value
Available-for-sale
Due in one year or less	$	3,190	$	3,208
Due after one through five years		18,798		18,917
Due after five through ten years		26,083		26,271
Due after ten years		49,674		49,562
Total debt securities available-for-sale	$	97,745	$	97,958
Held-to-maturity
Due in one year or less	$	4,700	$	4,714
Due after one through five years		477		498
Due after five through ten years		3,000		2,914
Due after ten years		18,298		18,305
Total debt securities held-to-maturity	$	26,475	$	26,431

Summary of Gross Unrealized Losses and Fair Value of Available for Sale Securities

The following table presents gross unrealized losses and fair value of securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2017 and December 31, 2016:

	Securities in a continuous unrealized loss position
	Less than 12 months				12 months or more				Total
(Dollars in thousands)	Gross unrealized losses		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses		Fair value
September 30, 2017
Available-for-sale
U.S. Treasury security	$	1	$	998	$	—	$	—	$	1	$	998
U.S. Government agencies		10		3,840		40		4,460		50		8,300
Mortgage-backed securities of government agencies		245		20,128		41		2,316		286		22,444
Asset-backed securities of government agencies		—		—		4		1,194		4		1,194
State and political subdivisions		9		1,693		65		2,961		74		4,654
Corporate bonds		—		—		167		2,333		167		2,333
Held-to-maturity
U.S. Government agencies		32		3,966		121		4,879		153		8,845
Mortgage-backed securities of government agencies		3		2,011		93		3,274		96		5,285
Total temporarily impaired securities	$	300	$	32,636	$	531	$	21,417	$	831	$	54,053
December 31, 2016
Available-for-sale
U.S. Government agencies	$	98	$	6,402	$	—	$	—	$	98	$	6,402
Mortgage-backed securities of government agencies		589		27,243		—		—		589		27,243
Asset-backed securities of government agencies		—		—		46		1,266		46		1,266
State and political subdivisions		439		19,328		—		—		439		19,328
Corporate bonds		33		3,593		111		1,889		144		5,482
Held-to-maturity
U.S. Government agencies		396		8,602		—		—		396		8,602
Mortgage-backed securities of government agencies		28		2,018		173		3,621		201		5,639
Total temporarily impaired securities	$	1,583	$	67,186	$	330	$	6,776	$	1,913	$	73,962