Securities (Tables)

3 Months Ended

Mar. 31, 2017

Securities

Summary of available for sale securities

	March 31, 2017
			Gross		Gross
	Amortized		Unrealized		Unrealized
(Dollars in thousands)	Cost		Gains		Losses		Fair Value
U.S. government agencies and corporations	$	17,017	$	1	$	(346)	$	16,672
Mortgage-backed securities		82,914		203		(524)		82,593
Obligations of states and political subdivisions		110,711		3,328		(225)		113,814
	$	210,642	$	3,532	$	(1,095)	$	213,079

	December 31, 2016
			Gross		Gross
	Amortized		Unrealized		Unrealized
(Dollars in thousands)	Cost		Gains		Losses		Fair Value
U.S. government agencies and corporations	$	16,526	$	—	$	(414)	$	16,112
Mortgage-backed securities		77,210		228		(622)		76,816
Obligations of states and political subdivisions		114,157		3,265		(324)		117,098
	$	207,893	$	3,493	$	(1,360)	$	210,026

Schedule of amortized cost and estimated fair value of securities, by contractual maturity date

	March 31, 2017
	Amortized
(Dollars in thousands)	Cost		Fair Value
Due in one year or less	$	29,291	$	29,397
Due after one year through five years		155,909		157,621
Due after five years through ten years		17,207		17,359
Due after ten years		8,235		8,702
	$	210,642	$	213,079

Schedule of securities in an unrealized loss position

Securities in an unrealized loss position at March 31, 2017, by duration of the period of the unrealized loss, are shown below.

	Less Than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Dollars in thousands)	Value		Loss		Value		Loss		Value		Loss
U.S. government agencies and corporations	$	16,169	$	346	$	—	$	—	$	16,169	$	346
Mortgage-backed securities		56,137		523		616		1		56,753		524
Obligations of states and political subdivisions		14,137		180		2,207		45		16,344		225
Total temporarily impaired securities	$	86,443	$	1,049	$	2,823	$	46	$	89,266	$	1,095

Securities in an unrealized loss position at December 31, 2016, by duration of the period of the unrealized loss, are shown below.

	Less Than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Dollars in thousands)	Value		Loss		Value		Loss		Value		Loss
U.S. government agencies and corporations	$	16,111	$	414	$	—	$	—	$	16,111	$	414
Mortgage-backed securities		54,227		621		671		1		54,898		622
Obligations of states and political subdivisions		21,835		283		1,891		41		23,726		324
Total temporarily impaired securities	$	92,173	$	1,318	$	2,562	$	42	$	94,735	$	1,360