Investment in Securities

12 Months Ended

Dec. 31, 2012

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Note 3
Investment in Securities

Investment securities available-for-sale are recorded at fair value on a recurring basis. The Company’s investment securities available-for-sale at December 31, 2012 and 2011 are measured at fair value using Level 2 valuations. The market evaluation utilizes several sources which include “observable inputs” rather than “significant unobservable inputs” and therefore falls into the Level 2 category. The table below presents the balances of securities available-for-sale measured at fair value on a recurring basis. The amortized cost, gross unrealized gains, gross unrealized losses and fair value of debt and equity securities are summarized as follows:

	December 31, 2012
			Gross		Gross
	Amortized		Unrealized		Unrealized
(In thousands)	Cost		Gains		Losses		Fair Value
State and political subdivisions	$	315,345	$	19,960	$	112	$	335,193
Certificates of deposit		6,742		—		—		6,742
Total	$	322,087	$	19,960	$	112	$	341,935
	December 31, 2011
			Gross		Gross
	Amortized		Unrealized		Unrealized
(In thousands)	Cost		Gains		Losses		Fair Value
State and political subdivisions	$	287,585	$	19,797	$	20	$	307,362
Certificates of deposit		3,250		—		—		3,250
Total	$	290,835	$	19,797	$	20	$	310,612

The fair values of securities with unrealized losses are as follows:

	December 31, 2012
	Less than 12 months				12 months or more				Total
	Estimated		Unrealized		Estimated		Unrealized		Estimated		Unrealized
(In thousands)	Fair Value		Losses		Fair Value		Losses		Fair value		Losses
State and political subdivisions	$	19,758	$	112	$	—	$	—	$	19,758	$	112
Certificates of deposit		—		—		—		—		—		—
Total	$	19,758	$	112	$	—	$	—	$	19,758	$	112
	December 31, 2011
	Less than 12 months				12 months or more				Total
	Estimated		Unrealized		Estimated		Unrealized		Estimated		Unrealized
(In thousands)	Fair Value		Losses		Fair Value		Losses		Fair value		Losses
State and political subdivisions	$	4,362	$	20	$	—	$	—	$	4,362	$	20
Certificates of deposit		—		—		—		—		—		—
Total	$	4,362	$	20	$	—	$	—	$	4,362	$	20

There were 18 securities, or 5% of total, (none greater than 12 months) in an unrealized loss position as of December 31, 2012 compared to 7 securities (none greater than 12 months) in an unrealized loss position as of December 31, 2011 . All unrealized losses are reviewed to determine whether the losses are other than temporary. Management believes that all unrealized losses are temporary since they are market driven and the Company has the ability and intent to hold these securities until maturity.

The amortized cost and fair value of debt and equity securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties.

	December 31, 2012
(In thousands)	Amortized Cost		Fair Value
Due in 1 year or less	$	16,917	$	17,129
Due after 1 year through 5 years		63,064		67,493
Due after 5 years through 10 years		170,379		180,184
Due after 10 years		71,727		77,129
No stated maturity		—		—
Total	$	322,087	$	341,935

The premium related to the purchase of state and political subdivisions was $4,384,000 and $2,466,000 in 2012 and 2011, respectively.

The amortized cost of debt securities pledged to secure public deposits, securities sold under agreements to repurchase and for other purposes at December 31, 2012 and 2011 were $3,750,000 and $3,250,000, respectively.

Proceeds from sales of debt securities classified as available-for-sale were $69,747,000 in 2012, $5,930,000 in 2011, and $0 in 2010. Gross realized gains on the sales in 2012, 2011 and 2010 were $2,646,000, $48,000, and $0, respectively; gross realized losses on sales in 2012, 2011 and 2010 were $11,000, $5,000, and $0, respectively.