Debt and Equity Securities (Tables)

6 Months Ended

Jun. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Summary of Debt and Equity Securities

Debt and equity securities have been classified in the consolidated balance sheet according to management’s intent. Debt and equity securities at June 30, 2014 and December 31, 2013 are summarized as follows:

	June 30, 2015
	Securities Available-For-Sale
	In Thousands
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Market Value
U.S. Government-sponsored enterprises (GSEs)*	$	113,691	$	241	$	787	$	113,145
Mortgage-backed:
GSE residential		163,538		477		857		163,158
Asset-backed:
SBAP		29,147		92		122		29,117
Obligations of states and political subdivisions		23,279		37		252		23,064
	$	329,655	$	847	$	2,018	$	328,484
	June 30, 2015
	Securities Held-To-Maturity
	In Thousands
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Market Value
Mortgage-backed:
Government-sponsored enterprises (GSEs)* residential	$	7,189	$	67	$	191	$	7,065
Obligations of states and political subdivisions		19,015		258		87		19,186
	$	26,204	$	325	$	278	$	26,251

* Such as Federal National Mortgage Association, Federal Home Loan Mortgage Corporation, Federal Home Loan Bank, and Federal Farm Credit Bank.

	December 31, 2014
	Securities Available-For-Sale
	In Thousands
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Market Value
Government-sponsored enterprises (GSEs)*	$	131,767		129		1,329		130,567
Mortgage-backed:
GSE residential		170,802		731		464		171,069
Asset-backed:
SBAP		30,627		98		205		30,520
Obligations of states and political subdivisions		14,324		98		158		14,264
	$	347,520		1,056		2,156		346,420

	December 31, 2014 Securities Held-To-Maturity
	In Thousands
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Market Value
Mortgage-backed:
Government-sponsored enterprises (GSEs)* residential	$	7,398		76		147		7,327
Obligations of states and political subdivisions		20,725		389		41		21,073
	$	28,123		465		188		28,400

* Such as Federal National Mortgage Association, Federal Home Loan Mortgage Corporation, Federal Home Loan Bank, and Federal Farm Credit Bank.

Maturity of Amortized Cost and Estimated Market Value of Debt Securities

The amortized cost and estimated market value of debt securities at June 30, 2015, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Held-to-Maturity				Available-for-sale
	In Thousands
			Estimated				Estimated
	Amortized		Market		Amortized		Market
	Cost		Value		Cost		Value
Due in one year or less	$	2,777	$	2,813	$	2,000	$	2,001
Due after one year through five years		9,978		10,082		46,710		46,724
Due after five years through ten years		3,382		3,419		138,966		138,322
Due after ten years		10,067		9,937		141,979		141,437
	$	26,204	$	26,251	$	329,655	$	328,484

Gross Unrealized Losses and Fair Value of Company's Investments

The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2015 and December 31, 2014.

	In Thousands, Except Number of Securities
	Less than 12 Months						12 Months or More						Total
June 30, 2015	Fair Value		Unrealized Losses		Number of Securities Included		Fair Value		Unrealized Losses		Number of Securities Included		Fair Value		Unrealized Losses
Held to Maturity Securities:
Mortgage-backed:
Government-sponsored enterprises (GSEs) residential	$	1,574	$	25		1	$	2,996	$	166		3	$	4,570	$	191
Obligations of states and political subdivisions		9,239		83		24		298		4		1		9,537		87
	$	10,813	$	108		25	$	3,294	$	170		4	$	14,107	$	278
Available-for-Sale Securities:
GSEs	$	29,940	$	151		11	$	46,605	$	636		14	$	76,545	$	787
Mortgage-backed:
GSE residential		91,809		756		46		4,414		101		8		96,223		857
Asset-baked: SBAP		14,692		103		7		2,722		19		1		17,414		122
Obligations of states and political subdivisions		12,072		123		32		3,264		129		9		15,336		252
	$	148,513	$	1,133		96	$	57,005	$	885		32	$	205,518	$	2,018

	In Thousands, Except Number of Securities
	Less than 12 Months						12 Months or More						Total
					Number						Number
					of						of
	Fair		Unrealized		Securities		Fair		Unrealized		Securities		Fair		Unrealized
December 31, 2014	Value		Losses		Included		Value		Losses		Included		Value		Losses
Held to Maturity Securities:
Mortgage-backed:
Government-sponsored enterprises (GSEs) residential	$	—	$	—		—	$	4,674	$	147		4	$	4,674	$	147
Obligations of states and political subdivisions		—		—		—		2,577		41		6		2,577		41
	$	—	$	—		—	$	7,251	$	188		10	$	7,251	$	188
Available-for-Sale Securities:
GSEs	$	34,753	$	143		10	$	74,250	$	1,186		24	$	109,003	$	1,329
Mortgage-backed:
GSE residential		66,504		279		36		22,172		185		13		88,676		464
Asset-backed: SBAP		16,114		205		9		—		—		—		16,114		205
Obligations of states and political subdivisions		2,078		8		4		4,699		150		13		6,777		158
	$	119,449	$	635		59	$	101,121	$	1,521		50	$	220,570	$	2,156