Investment Securities (Tables)

6 Months Ended

Jun. 30, 2012

Amortized Cost and Approximate Fair Values of Securities

The amortized cost, gross unrealized gains, gross unrealized losses and approximate fair values of the investment securities at the dates indicated were:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available for sale at June 30, 2012
U.S. Government-sponsored agency securities	$	4,841	$	92			$	4,933
State and municipal		136,011		9,614	$	28		145,597
U.S. Government-sponsored mortgage-backed securities		371,971		11,644		53		383,562
Corporate obligations		16,947		419		5,737		11,629
Equity securities		1,830						1,830
Total available for sale		531,600		21,769		5,818		547,551
Held to maturity at June 30, 2012
State and municipal		119,222		4,250		1		123,471
U.S. Government-sponsored mortgage-backed securities		277,548		12,228				289,776
Total held to maturity		396,770		16,478		1		413,247
Total Investment Securities	$	928,370	$	38,247	$	5,819	$	960,798

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available for sale at December 31, 2011
U.S. Government-sponsored agency securities	$	99	$	18			$	117
State and municipal		136,857		10,496				147,353
U.S. Government-sponsored mortgage-backed securities		358,928		10,086	$	16		368,998
Corporate obligations		5,765				5,572		193
Equity securities		1,830						1,830
Total available for sale		503,479		20,600		5,588		518,491
Held to maturity at December 31, 2011
State and municipal		120,171		3,785				123,956
U.S. Government-sponsored mortgage-backed securities		307,738		10,775				318,513
Total held to maturity		427,909		14,560				442,469
Total Investment Securities	$	931,388	$	35,160	$	5,588	$	960,960

Amortized Cost and Fair Value of Available for Sale Securities and Held to Maturity Securities by Contractual Maturity

The amortized cost and fair value of available for sale securities and held to maturity securities at June 30, 2012, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Available for Sale				Held to Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Maturity Distribution at June 30, 2012:
Due in one year or less	$	5,513	$	5,574	$	3,345	$	3,345
Due after one through five years		19,028		19,909		2,953		2,979
Due after five through ten years		29,106		30,906		51,873		53,415
Due after ten years		104,152		105,770		61,051		63,732
	$	157,799	$	162,159	$	119,222	$	123,471

U.S. Government-sponsored mortgage-backed securities		371,971		383,562		277,548		289,776
Equity securities		1,830		1,830
Total Investment Securities	$	531,600	$	547,551	$	396,770	$	413,247

Gross Gains and Losses on Sales and Redemptions of Available for Sale Securities and Other Than Temporary Impairment Losses Recognized

Gross gains and losses on the sales and redemptions of available for sale securities, and other-than-temporary impairment (“OTTI”) losses recognized for the three and six months ended June 30, 2012 and 2011 are shown below.

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
Sales and Redemptions of Available for Sale Securities:
Gross gains	$	502	$	825	$	1,291	$	1,288
Other-than-temporary impairment losses							$	400

Investments' Gross Unrealized Losses and Fair Value Aggregated by Investment Category and Length of Time in Continuous Unrealized Loss Position

The following table shows the Corporation’s investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2012, and December 31, 2011:

	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Temporarily Impaired Investment
Securities at June 30, 2012
State and municipal	$	4,545	$	(29	)						$	4,545	$	(29	)
U.S. Government-sponsored mortgage-backed securities		7,817		(53	)							7,817		(53	)
Corporate obligations						$	168	$	(5,737	)		168		(5,737	)
Total Temporarily Impaired Investment Securities	$	12,362	$	(82	)	$	168	$	(5,737	)	$	12,530	$	(5,819	)

	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Temporarily Impaired Investment
Securities at December 31, 2011
State and municipal
U.S. Government-sponsored mortgage-backed securities	$	6,176	$	(16	)						$	6,176	$	(16	)
Corporate obligations						$	163	$	(5,572	)		163		(5,572	)
Total Temporarily Impaired Investment Securities	$	6,176	$	(16	)	$	163	$	(5,572	)	$	6,339	$	(5,588	)

Investments in Debt and Equity Securities Reported Less than Historical Cost

Certain investments in debt and equity securities are reported in the financial statements at an amount less than their historical cost as indicated in the table below.

	June 30, 2012			December 31, 2011
Investments reported at less than historical cost:
Historical cost	$	18,349		$	11,925
Fair value	$	12,530		$	6,339
Percent of the Corporation's available for sale and held to maturity portfolio		1.3	%		0.7	%

Debt Securities Credit Loss Recognized in Income, and Other Losses Recorded in Other Comprehensive Income

The following table provides information about debt securities for which only a credit loss was recognized in income and other losses were recorded in other comprehensive income.

	Accumulated Credit Losses in 2012		Accumulated Credit Losses in 2011
Credit losses on debt securities held:
Balance, January 1	$	11,355	$	10,955
Additions related to other-than-temporary losses not previously recognized				400
Balance, June 30	$	11,355	$	11,355

- Definition

Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income.

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