Note 3 - Securities

The amortized cost and estimated fair value of investments in debt and equity securities at March 31, 2012 and December 31, 2011 were as follows:

	March 31, 2012
(in thousands)	Amortized		Unrealized		Unrealized		Estimated
	Cost		Gains		Losses		Fair Value
Securities available for sale:
Federal agencies and GSEs	$	40,338	$	489	$	60	$	40,767
Mortgage-backed and CMOs		101,399		1,921		267		103,053
State and municipal		180,405		10,806		28		191,183
Corporate		2,323		50		-		2,373
Total securities available for sale	$	324,465	$	13,266	$	355	$	337,376

	December 31, 2011
(in thousands)	Amortized		Unrealized		Unrealized		Estimated
	Cost		Gains		Losses		Fair Value
Securities available for sale:
Federal agencies and GSEs	$	32,071	$	608	$	-	$	32,679
Mortgage-backed and CMOs		102,444		1,874		414		103,904
State and municipal		182,952		11,454		1		194,405
Corporate		2,312		66		-		2,378
Total securities available for sale	$	319,779	$	14,002	$	415	$	333,366

Temporarily Impaired Securities

The following table shows estimated fair value and gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2012. The reference point for determining when securities are in an unrealized loss position is month-end. Therefore, it is possible that a security's market value exceeded its amortized cost on other days during the past twelve-month period.

Available for sale securities that have been in a continuous unrealized loss position are as follows:

	Total				Less than 12 Months				12 Months or More
(in thousands)	Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss
Federal agencies and GSEs	$	17,869	$	60	$	17,869	$	60	$	-	$	-
Mortgage-backed		25,444		163		25,444		163		-		-
CMOs		2,618		80		2,618		80		-		-
Private label CMOs		71		24		-		-		71		24
State and municipal		4,581		28		4,180		27		401		1
Total	$	50,583	$	355	$	50,111	$	330	$	472	$	25

GSE debt securities: The unrealized losses on investments in six GSEs ("government sponsored entities") were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than the amortized cost basis of the investments. Because the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at March 31, 2012.

GSEs residential mortgage-backed securities: The unrealized losses on the Company's investment in 14 GSE mortgage-backed securities were caused by interest rate increases. The contractual cash flows of those investments are guaranteed by an agency of the U.S. Government. Accordingly, it is expected that the securities would not be settled at a price less than the amortized cost basis of the Company's investments. Because the decline in market value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at March 31, 2012.

Collateralized Mortgage Obligations ("CMOs"): The unrealized loss associated with one CMO was caused by interest rate increases. The contractual cash flows of those investments are guaranteed by an agency of the U.S. Government. Accordingly, it is expected that the securities would not be settled at a price less than the amortized cost basis of the Company's investments. Because the decline in market value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at March 31, 2012.

Private-Label Collateralized Mortgage Obligations: The unrealized loss associated with one private residential CMO is primarily driven by higher projected collateral losses, wider credit spreads, and changes in interest rates. We assess for credit impairment using a cash flow model. Based upon management's assessment of the expected credit losses of the securities given the performance of the underlying collateral compared to the credit enhancement, the Company expects to recover the remaining amortized cost basis of these securities.

State and municipal securities: The unrealized losses on five investments in state and municipal securities were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than the amortized cost basis of the investments. Because the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company does not consider those investments to be other-than-temporarily impaired at March 31, 2012.

The Company's investment in FHLB stock totaled $3,160,000 at March 31, 2012. FHLB stock is generally viewed as a long-term investment and as a restricted investment security, which is carried at cost, because there is no market for the stock, other than the FHLB or member institutions. Therefore, when evaluating FHLB stock for impairment, its value is based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value. The Company does not consider this investment to be other-than-temporarily impaired at March 31, 2012 and no impairment has been recognized. FHLB stock is shown in restricted stock on the balance sheet and is not a part of the available for sale securities portfolio.

The table below shows gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities had been in a continuous unrealized loss position, at December 31, 2011.

	Total				Less than 12 Months				12 Months or More
(in thousands)	Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss
Mortgage-backed	$	28,431	$	266	$	28,431	$	266	$	-	$	-
Private label CMOs		3,375		148		3,306		115		69		33
State and municipal		401		1		401		1		-		-
Total	$	32,207	$	415	$	32,138	$	382	$	69	$	33

Other-Than-Temporary-Impaired Securities

As of March 31, 2012 and December 31, 2011, there were no securities classified as other-than-temporary impaired.