Securities (Tables)

The following table provides a summary of the Company’s securities AFS portfolio as of:

	Amortized		Gross Unrealized					Estimated
(dollars in thousands)	Cost		Gains		Losses			Fair Value
September 30, 2017:
US Treasury securities	$	499	$	—	$	(4	)	$	495
Agency mortgage-backed securities		436,415		497		(4,464	)		432,448
Beneficial interests in FHLMC securitization		38,975		1,756		(2,172	)		38,559
Total	$	475,889	$	2,253	$	(6,640	)	$	471,502

December 31, 2016:
US Treasury securities	$	300	$	—	$	(3	)	$	297
Agency mortgage-backed securities		476,163		160		(7,414	)		468,909
Beneficial interests in FHLMC securitization		42,028		711		(2,367	)		40,372
Total	$	518,491	$	871	$	(9,784	)	$	509,578

The tables below indicate, as of September 30, 2017 and December 31, 2016, the gross unrealized losses and fair values of our investments, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position.

	Securities with Unrealized Loss at September 30, 2017
	Less than 12 months					12 months or more					Total
(dollars in thousands)	Fair Value			Unrealized Loss		Fair Value			Unrealized Loss		Fair Value		Unrealized Loss
US Treasury securities	$	495	$	(4	)	$	—	$	—		$	495	$	(4	)
Agency mortgage backed securities		287,342		(2,670	)		58,044		(1,794	)		345,386		(4,464	)
Beneficial interests in FHLMC securitization		—		—			9,347		(2,172	)		9,347		(2,172	)
Total temporarily impaired securities	$	287,837	$	(2,674	)	$	67,391	$	(3,966	)	$	355,228	$	(6,640	)

	Securities with Unrealized Loss at December 31, 2016
	Less than 12 months					12 months or more				Total
(dollars in thousands)	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
US Treasury securities		297		(3	)		—		—		297		(3	)
Agency mortgage backed securities		445,591		(7,414	)		—		—		445,591		(7,414	)
Beneficial interests in FHLMC securitization		18,636		(2,367	)		—		—		18,636		(2,367	)
Total temporarily impaired securities	$	464,524	$	(9,784	)	$	—	$	—	$	464,524	$	(9,784	)

The scheduled maturities of securities AFS and the related weighted average yields were as follows as of September 30, 2017:

(dollars in thousands)	Less than 1 Year			1 Through 5 years			5 Through 10 Years			After 10 Years			Total
Amortized Cost:
US Treasury securities	$	—		$	499		$	—		$	—		$	499
Weighted average yield		—	%		1.03	%		—	%		—	%		1.03	%

Estimated Fair Value:
US Treasury Securities	$	—		$	495		$	—		$	—		$	495

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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