Investment Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investment Securities

Schedule of amortized cost of investment securities to estimated fair values

	December 31, 2019
	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
U.S. Treasury and agencies	$	21,246	$	9	$	(15)	$	21,240
Obligations of state and political agencies		68,162		647		(161)		68,648
Mortgage backed securities
Residential agency		180,411		2,258		(131)		182,538
Commercial		30,752		101		(168)		30,685
Asset backed securities		139		5		—		144
Corporate bonds		7,054		41		—		7,095
Total available-for-sale investment securities	$	307,764	$	3,061	$	(475)	$	310,350

	December 31, 2018
	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
U.S. Treasury and agencies	$	19,364	$	—	$	(222)	$	19,142
Obligations of state and political agencies		67,662		171		(1,446)		66,387
Mortgage backed securities
Residential agency		129,906		210		(3,118)		126,998
Commercial		29,050		20		(303)		28,767
Asset backed securities		398		5		(4)		399
Corporate bonds		8,602		—		(121)		8,481
Total available-for-sale investment securities	$	254,982	$	406	$	(5,214)	$	250,174

Schedule of contractual maturity of amortized cost and estimated fair value

	Amortized		Fair
(dollars in thousands)	Cost		Value
Due within one year or less	$	14,799	$	14,807
Due after one year through five years		25,193		25,315
Due after five years through ten years		83,987		84,965
Due after 10 years		183,785		185,263
Total available-for-sale investment securities	$	307,764	$	310,350

Schedule of proceeds from the sale of available for sale securities

	Year ended
	December 31,
(dollars in thousands)	2019		2018		2017
Proceeds	$	32,565	$	6,488	$	—
Realized gains		357		144		—
Realized losses		(22)		(15)		—

Schedule of investment securities with gross unrealized losses

	December 31, 2019
	Less than 12 Months				Over 12 Months				Total
	Unrealized		Fair		Unrealized		Fair		Unrealized		Fair
(dollars in thousands)	Losses		Value		Losses		Value		Losses		Value
U.S. Treasury and agencies	$	(5)	$	1,740	$	(10)	$	9,990	$	(15)	$	11,730
Obligations of state and political agencies		(140)		11,959		(21)		5,798		(161)		17,757
Mortgage backed securities
Residential agency		(52)		17,131		(79)		14,036		(131)		31,167
Commercial		(116)		15,235		(52)		6,195		(168)		21,430
Asset backed securities		—		2		—		—		—		2
Corporate bonds		—		—		—		—		—		—
Total available-for-sale investment securities	$	(313)	$	46,067	$	(162)	$	36,019	$	(475)	$	82,086

	December 31, 2018
	Less than 12 Months				Over 12 Months				Total
	Unrealized		Fair		Unrealized		Fair		Unrealized		Fair
(dollars in thousands)	Losses		Value		Losses		Value		Losses		Value
U.S. Treasury and agencies	$	(8)	$	5,288	$	(214)	$	11,598	$	(222)	$	16,886
Obligations of state and political agencies		—		389		(1,446)		55,770		(1,446)		56,159
Mortgage backed securities
Residential agency		(44)		7,352		(3,074)		112,293		(3,118)		119,645
Commercial		(39)		7,844		(264)		9,741		(303)		17,585
Asset backed securities		—		2		(4)		155		(4)		157
Corporate bonds		—		—		(121)		8,481		(121)		8,481
Total available-for-sale investment securities	$	(91)	$	20,875	$	(5,123)	$	198,038	$	(5,214)	$	218,913

Schedule of federal home loan bank

	December 31,		December 31,
(dollars in thousands)	2019		2018
Federal Reserve	$	2,675	$	2,675
FHLB		3,080		6,875