Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Securities Available-for-Sale and Restricted Stock

Securities consist of the following at June 30, 2018 and December 31, 2017:

(Dollars in thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
June 30, 2018
Available-for-sale
U.S. Treasury security	$	993	$	—	$	1	$	992
U.S. Government agencies		8,350		—		259		8,091
Mortgage-backed securities of government agencies		45,948		24		1,233		44,739
Asset-backed securities of government agencies		1,104		—		3		1,101
State and political subdivisions		26,419		47		349		26,117
Corporate bonds		10,003		3		238		9,768
Total available-for-sale		92,817		74		2,083		90,808
Held-to-maturity
U.S. Government agencies		9,479		4		452		9,031
Mortgage-backed securities of government agencies		12,403		14		275		12,142
Total held-to-maturity		21,882		18		727		21,173
Equity securities		53		41		—		94
Restricted stock		4,614		—		—		4,614
Total securities	$	119,366	$	133	$	2,810	$	116,689
December 31, 2017
Available-for-sale
U.S. Treasury security	$	999	$	—	$	1	$	998
U.S. Government agencies		8,350		—		121		8,229
Mortgage-backed securities of government agencies		50,136		146		581		49,701
Asset-backed securities of government agencies		1,168		1		—		1,169
State and political subdivisions		27,020		224		103		27,141
Corporate bonds		10,532		35		142		10,425
Total available-for-sale		98,205		406		948		97,663
Held-to-maturity
U.S. Government agencies		9,477		16		228		9,265
Mortgage-backed securities of government agencies		11,581		95		145		11,531
State and political subdivisions		4,700		—		5		4,695
Total held-to-maturity		25,758		111		378		25,491
Equity securities		53		36		—		89
Restricted stock		4,614		—		—		4,614
Total securities	$	128,630	$	553	$	1,326	$	127,857

Summary of Amortized Cost and Fair Value of Debt Securities

The amortized cost and fair value of debt securities at June 30, 2018, 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	$	5,068	$	5,060
Due after one through five years		16,684		16,467
Due after five through ten years		28,245		27,683
Due after ten years		42,820		41,598
Total debt securities available-for-sale	$	92,817	$	90,808
Held-to-maturity
Due in one year or less	$	—	$	—
Due after one through five years		481		485
Due after five through ten years		3,000		2,811
Due after ten years		18,401		17,877
Total debt securities held-to-maturity	$	21,882	$	21,173

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 June 30, 2018 and December 31, 2017:

	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
June 30, 2018 Available-for-sale
U.S. Treasury security	$	1	$	992	$	—	$	—	$	1	$	992
U.S. Government agencies		56		1,944		203		6,147		259		8,091
Mortgage-backed securities of government agencies		460		25,360		773		17,787		1,233		43,147
Asset-backed securities of government agencies		3		1,101		—		—		3		1,101
State and political subdivisions		177		12,944		172		3,643		349		16,587
Corporate bonds		64		6,464		174		2,326		238		8,790
Held-to-maturity
U.S. Government agencies		44		1,956		408		6,591		452		8,547
Mortgage-backed securities of government agencies		142		7,325		133		2,846		275		10,171
Total temporarily impaired securities	$	947	$	58,086	$	1,863	$	39,340	$	2,810	$	97,426
December 31, 2017
Available-for-sale
U.S. Treasury security	$	1	$	998	$	—	$	—	$	1	$	998
U.S. Government agencies		46		3,804		75		4,425		121		8,229
Mortgage-backed securities of government agencies		145		16,872		436		17,259		581		34,131
State and political subdivisions		26		4,400		77		3,752		103		8,152
Corporate bonds		2		2,912		140		2,360		142		5,272
Held-to-maturity
U.S. Government agencies		15		1,985		213		6,785		228		8,770
Mortgage-backed securities of government agencies		18		1,818		127		3,116		145		4,934
State and political subdivisions		5		4,695		—		—		5		4,695
Total temporarily impaired securities	$	258	$	37,484	$	1,068	$	37,697	$	1,326	$	75,181