Securities (Tables)

9 Months Ended

Sep. 30, 2022

Securities

Summary of available for sale debt securities

	September 30, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized
(Dollars in thousands)	Cost		Gains		Losses		Fair Value
U.S. Treasury securities	$	60,727	$	—	$	(2,137)	$	58,590
U.S. government agencies and corporations		143,095		—		(12,885)		130,210
Mortgage-backed securities		205,077		—		(23,852)		181,225
Obligations of states and political subdivisions		115,689		16		(8,938)		106,767
Corporate and other debt securities		25,325		—		(2,553)		22,772
	$	549,913	$	16	$	(50,365)	$	499,564

	December 31, 2021
			Gross		Gross
	Amortized		Unrealized		Unrealized
(Dollars in thousands)	Cost		Gains		Losses		Fair Value
U.S. government agencies and corporations	$	69,583	$	41	$	(1,339)	$	68,285
Mortgage-backed securities		189,985		1,565		(1,201)		190,349
Obligations of states and political subdivisions		91,304		1,642		(280)		92,666
Corporate and other debt securities		21,648		246		(121)		21,773
	$	372,520	$	3,494	$	(2,941)	$	373,073

Schedule of amortized cost and estimated fair value of securities, by the earlier of contractual maturity or expected maturity

	September 30, 2022
	Amortized
(Dollars in thousands)	Cost		Fair Value
Due in one year or less	$	102,015	$	95,529
Due after one year through five years		318,655		293,057
Due after five years through ten years		123,430		105,859
Due after ten years		5,813		5,119
	$	549,913	$	499,564

Schedule of gross realized gains and losses and the proceeds

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2022		2021		2022		2021
Realized gains from sales, maturities and calls of securities:
Gross realized gains	$	—	$	3	$	—	$	41
Gross realized losses		—		—		—		—
Net realized gains	$	—	$	3	$	—	$	41
Proceeds from sales, maturities, calls and paydowns of securities	$	12,700	$	29,798	$	43,681	$	85,293

Schedule of securities in an unrealized loss position

Securities in an unrealized loss position at September 30, 2022, 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. Treasury securities	$	58,590	$	2,137	$	—	$	—	$	58,590	$	2,137
U.S. government agencies and corporations		85,022		3,345		45,188		9,540		130,210		12,885
Mortgage-backed securities		91,082		9,283		90,052		14,569		181,134		23,852
Obligations of states and political subdivisions		79,337		6,456		14,189		2,482		93,526		8,938
Corporate and other debt securities		16,789		1,979		4,967		574		21,756		2,553
Total temporarily impaired securities	$	330,820	$	23,200	$	154,396	$	27,165	$	485,216	$	50,365

Securities in an unrealized loss position at December 31, 2021, 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	$	46,561	$	945	$	10,604	$	394	$	57,165	$	1,339
Mortgage-backed securities		126,873		1,127		5,178		74		132,051		1,201
Obligations of states and political subdivisions		16,578		224		2,703		56		19,281		280
Corporate and other debt securities		8,925		121		—		—		8,925		121
Total temporarily impaired securities	$	198,937	$	2,417	$	18,485	$	524	$	217,422	$	2,941