Securities (Tables)

6 Months Ended

Jun. 30, 2016

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, 2016 and December 31, 2015 and the corresponding amounts of unrealized gains and losses recognized in accumulated other comprehensive income:

			Gross		Gross
(In Thousands of Dollars)	Amortized		Unrealized		Unrealized
	Cost		Gains		Losses			Fair Value
June 30, 2016
U.S. Treasury and U.S. government sponsored entities	$	6,323	$	111	$	(1	)	$	6,433
State and political subdivisions		138,751		4,972		(14	)		143,709
Corporate bonds		1,240		20		0			1,260
Mortgage-backed securities - residential		181,730		3,514		(302	)		184,942
Collateralized mortgage obligations - residential		23,413		109		(259	)		23,263
Small Business Administration		18,505		100		(34	)		18,571
Equity securities		139		119		(4	)		254
Totals	$	370,101	$	8,945	$	(614	)	$	378,432

			Gross		Gross
(In Thousands of Dollars)	Amortized		Unrealized		Unrealized
	Cost		Gains		Losses			Fair Value
December 31, 2015
U.S. Treasury and U.S. government sponsored entities	$	11,120	$	38	$	(52	)	$	11,106
State and political subdivisions		136,781		2,354		(412	)		138,723
Corporate bonds		1,134		5		(5	)		1,134
Mortgage-backed securities - residential		197,289		1,433		(2,135	)		196,587
Collateralized mortgage obligations - residential		28,035		0		(870	)		27,165
Small Business Administration		19,755		1		(457	)		19,299
Equity securities		203		127		(32	)		298
Totals	$	394,317	$	3,958	$	(3,963	)	$	394,312

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, 2016
(In Thousands of Dollars)	Amortized Cost		Fair Value
Maturity
Within one year	$	10,669	$	10,732
One to five years		61,633		63,293
Five to ten years		59,524		62,631
Beyond ten years		14,488		14,746
Mortgage-backed, collateralized mortgage obligations and Small    Business Administration securities		223,648		226,776
Total	$	369,962	$	378,178

Investment Securities with Unrealized Losses

The following table summarizes the investment securities with unrealized losses at June 30, 2016 and December 31, 2015, aggregated by major security type and length of time in a continuous unrealized loss position.

	Less than 12 Months					12 Months or Longer					Total
(In Thousands of Dollars)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Loss			Value		Loss			Value		Loss
June 30, 2016
Available-for-sale
U.S. Treasury and U.S. government sponsored entities	$	514	$	(1	)	$	0	$	0		$	514	$	(1	)
State and political subdivisions		1,694		(14	)		0		0			1,694		(14	)
Mortgage-backed securities - residential		6,802		(16	)		28,141		(286	)		34,943		(302	)
Collateralized mortgage obligations - residential		0		0			12,187		(259	)		12,187		(259	)
Small Business Administration		0		0			8,699		(34	)		8,699		(34	)
Equity securities		119		(4	)		0		0			119		(4	)
Total	$	9,129	$	(35	)	$	49,027	$	(579	)	$	58,156	$	(614	)

	Less than 12 Months					12 Months or Longer					Total
(In Thousands of Dollars)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		Loss			Value		Loss			Value		Loss
December 31, 2015
Available-for-sale
U.S. Treasury and U.S. government sponsored entities	$	6,044	$	(51	)	$	199	$	(1	)	$	6,243	$	(52	)
State and political subdivisions		22,016		(167	)		12,635		(245	)		34,651		(412	)
Corporate bonds		102		(1	)		478		(4	)		580		(5	)
Mortgage-backed securities - residential		79,301		(1,044	)		40,794		(1,091	)		120,095		(2,135	)
Collateralized mortgage obligations - residential		14,342		(169	)		12,695		(701	)		27,037		(870	)
Small Business Administration		0		0			19,237		(457	)		19,237		(457	)
Equity securities		88		(32	)		0		0			88		(32	)
Total	$	121,893	$	(1,464	)	$	86,038	$	(2,499	)	$	207,931	$	(3,963	)