Securities

The amortized cost and fair value of securities available-for-sale at June 30, 2017 and December 31, 2016 are summarized as follows (in thousands):



	June 30, 2017
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Government-sponsored enterprises (GSEs)	$	18,244	$	5	$	(278	)	$	17,971
Municipal securities	8,362		77		(42		)	8,397
Other debt securities	972		—		(24		)	948
Mortgage-backed securities	105,585		347		(486		)	105,446
	$	133,163	$	429	$	(830	)	$	132,762



	December 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Government-sponsored enterprises (GSEs)	$	18,279	$	8	$	(564	)	$	17,723
Municipal securities	8,182		16		(179		)	8,019
Mortgage-backed securities	104,585		185		(1,090		)	103,680
	$	131,046	$	209	$	(1,833	)	$	129,422

At June 30, 2017, securities with a fair value totaling approximately $81,000,000 were pledged to secure public funds and securities sold under agreements to repurchase.

For the three and six months ended June 30, 2017, there were no available-for-sale securities sold. For the three and six months ended June 30, 2016 there were available-for-sale securities sold with proceeds totaling $3,098,100 and $8,170,600 which resulted in gross gains realized of $98,100 and $181,363, respectively.

Note 3. Securities, Continued

The amortized cost and estimated fair value of securities at June 30, 2017, by contractual maturity, are shown below (in thousands). 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.



	Amortized Cost		Fair Value
Due in one year or less	$	4,179	$	4,182
Due from one year to five years	11,165		10,961
Due from five years to ten years	8,789		8,703
Due after ten years	3,445		3,470
	27,578		27,316
Mortgage-backed securities	105,585		105,446
	$	133,163	$	132,762

The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities available-for-sale have been in a continuous unrealized loss position, as of June 30, 2017 and December 31, 2016 (in thousands):



	As of June 30, 2017
	Less than 12 Months			12 Months or Greater			Total
	Fair Value	Gross Unrealized Losses		Fair Value	Gross Unrealized Losses		Fair Value	Gross Unrealized Losses
U.S. Government- sponsored enterprises (GSEs)	13,572	(278	)	—	—		13,572	(278	)
Municipal securities	2,897	(41	)	253	(1	)	3,150	(42	)
Other debt securities	948	(24	)	—	—		948	(24	)
Mortgage-backed securities	33,086	(139	)	17,662	(347	)	50,748	(486	)
	50,503	(482	)	17,915	(348	)	68,418	(830	)



	As of December 31, 2016
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
U.S. Government- sponsored enterprises (GSEs)	$	14,702	$	(564	)	$	—	$	—		$	14,702	$	(564	)
Municipal securities	6,368		(179		)	—		—			6,368		(179		)
Mortgage-backed securities	67,063		(690		)	8,948		(400		)	76,011		(1,090		)
	$	88,133	$	(1,433	)	$	8,948	$	(400	)	$	97,081	$	(1,833	)

At June 30, 2017, the categories of temporarily impaired securities, and management’s evaluation of those securities, are as follows:

U.S. Government-sponsored enterprises: At June 30, 2017, 4 (or four) investment in U.S. GSE securities had unrealized losses. These unrealized losses related principally to changes in market interest rates. The contractual terms of the investments do not permit the issuer to settle the securities at a price less than the amortized cost bases of the investments. Because the Bank does not intend to sell the investments and it is more likely than not that the Bank will not be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Bank does not consider these investments to be other-than temporarily impaired at June 30, 2017.

Note 3. Securities, Continued

Municipal securities: At June 30, 2017, 8 (or eight) investments in obligations of municipal securities had unrealized losses. The Bank believes the unrealized losses on those investments were caused by the interest rate environment and do not relate to the underlying credit quality of the issuers. Because the Bank does not intend to sell the investments and it is not more likely than not that the Bank will be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Bank does not consider these investments to be other-than temporarily impaired at June 30, 2017.

Other debt securities: At June 30, 2017, 1 (or one) investment in other debt securities had unrealized losses. The Bank believes the unrealized loss on this investment was caused by the interest rate environment and does not relate to the underlying credit quality of the issuer. Because the Bank does not intend to sell the investment and it is not more likely than not that the Bank will be required to sell the investment before recovery of its amortized cost bases, which may be maturity, the Bank does not consider this investment to be other-than temporarily impaired at June 30, 2017.

Mortgage-backed securities: At June 30, 2017, 43 (or forty three) investments in residential mortgage-backed securities had unrealized losses. This impairment is believed to be caused by the current interest rate environment. The contractual cash flows of those investments are guaranteed by an agency of the U.S. Government. Because the decline in market value is attributable to the current interest rate environment and not credit quality, and because the Bank does not intend to sell the investments and it is not more likely than not that the Bank will be required to sell the investments before recovery of their amortized cost bases, which may be maturity, the Bank does not deem these investments to be other-than-temporarily impaired at June 30, 2017.