Securities (Tables)

6 Months Ended

Jun. 30, 2020

Investments Debt And Equity Securities [Abstract]

Summary of the Amortized Cost and Fair Value of Available-for-Sale Investment Securities Corresponding Amounts of Unrealized Gains and Losses

The following table summarizes the amortized cost and fair value of the available for sale investment securities portfolio at June 30, 2020 and December 31, 2019 and the corresponding amounts of unrealized gains and losses recognized in accumulated other comprehensive income:

			Gross		Gross
	Amortized		Unrealized		Unrealized
(In Thousands of Dollars)	Cost		Gains		Losses			Fair Value
June 30, 2020
U.S. Treasury and U.S. government sponsored entities	$	3,790	$	123	$	0		$	3,913
State and political subdivisions		286,352		18,148		(54	)		304,446
Corporate bonds		3,161		149		0			3,310
Mortgage-backed securities - residential		119,276		5,968		0			125,244
Collateralized mortgage obligations - residential		31,623		885		(3	)		32,505
Small Business Administration		6,049		147		0			6,196
Totals	$	450,251	$	25,420	$	(57	)	$	475,614

			Gross		Gross
	Amortized		Unrealized		Unrealized
(In Thousands of Dollars)	Cost		Gains		Losses			Fair Value
December 31, 2019
U.S. Treasury and U.S. government sponsored entities	$	3,773	$	41	$	(3	)	$	3,811
State and political subdivisions		250,905		10,944		(424	)		261,425
Corporate bonds		1,238		22		0			1,260
Mortgage-backed securities - residential		145,886		2,396		(372	)		147,910
Collateralized mortgage obligations - residential		11,459		101		(213	)		11,347
Small Business Administration		6,534		0		(54	)		6,480
Totals	$	419,795	$	13,504	$	(1,066	)	$	432,233

Amortized Cost and Fair Value of the Debt Securities Maturity

The amortized cost and fair value of the debt securities portfolio are shown by expected maturity. Expected maturities may differ from contractual maturities if issuers have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	June 30, 2020
(In Thousands of Dollars)	Amortized Cost		Fair Value
Maturity
Within one year	$	835	$	840
One to five years		6,069		6,236
Five to ten years		22,616		23,722
Beyond ten years		263,783		280,871
Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities		156,948		163,945
Total	$	450,251	$	475,614

Available for Sale Investment Securities with Unrealized Losses

The following table summarizes the available for sale investment securities with unrealized losses at June 30, 2020 and December 31, 2019, aggregated by major security type and length of time in a continuous unrealized loss position.

	Less than 12 Months					12 Months or Longer				Total
	Fair		Unrealized			Fair		Unrealized		Fair		Unrealized
(In Thousands of Dollars)	Value		Loss			Value		Loss		Value		Loss
June 30, 2020

State and political subdivisions	$	3,050	$	(54	)	$	0	$	0	$	3,050	$	(54	)
Mortgage-backed securities - residential		2		0			0		0		2		0
Collateralized mortgage obligations - residential		331		(3	)		0		0		331		(3	)
Total	$	3,383	$	(57	)	$	0	$	0	$	3,383	$	(57	)

	Less than 12 Months					12 Months or Longer					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(In Thousands of Dollars)	Value		Loss			Value		Loss			Value		Loss
December 31, 2019

U.S. Treasury and U.S. government sponsored entities	$	0	$	0		$	622	$	(3	)	$	622	$	(3	)
State and political subdivisions		30,887		(424	)		0		0			30,887		(424	)
Corporate bonds		0		0			100		0			100		0
Mortgage-backed securities - residential		14,435		(98	)		22,381		(274	)		36,816		(372	)
Collateralized mortgage obligations - residential		1,198		(18	)		7,935		(195	)		9,133		(213	)
Small Business Administration		6,479		(54	)		1		0			6,480		(54	)
Total	$	52,999	$	(594	)	$	31,039	$	(472	)	$	84,038	$	(1,066	)