The following tables summarize available-for-sale marketable securities held at August 31, 2019 and May 31, 2019 by asset type:

	Available-For-Sale Securities
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value (Net Carrying Amount)
August 31, 2019
Fixed maturity:
U.S. treasury and other government	$	24,832	$	546	$	(124	)	$	25,254
Corporate bonds		422		57		-			479
Total available-for-sale securities	$	25,254	$	603	$	(124	)	$	25,733

	Available-For-Sale Securities
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value (Net Carrying Amount)
May 31, 2019
Fixed maturity:
U.S. treasury and other government	$	24,483	$	372	$	(308	)	$	24,547
Corporate bonds		422		43		(3	)		462
Total available-for-sale securities	$	24,905	$	415	$	(311	)	$	25,009

Marketable securities, included in other current and long-term assets totaling $9.3 million and $16.4 million at August 31, 2019, respectively, and included in other current and long-term assets totaling $8.6 million and $16.4 million at May 31, 2019, respectively, are composed of available-for-sale securities and are reported at fair value. We carry a portion of our marketable securities portfolio in long-term assets since they are generally held for the settlement of our general and product liability insurance claims processed through our wholly owned captive insurance subsidiaries.

Marketable securities include available-for-sale debt securities and are reported at fair value. Realized gains and losses on sales of investments are recognized in net income on the specific identification basis. Changes in the fair values of securities that are considered temporary are recorded as unrealized gains and losses, net of applicable taxes, in accumulated other comprehensive (loss) within stockholders’ equity. Other-than-temporary declines in market value from original cost are reflected in investment income, net in the period in which the unrealized losses are deemed other than temporary. In order to determine whether other-than-temporary declines in market value have occurred, the duration of the decline in value and our ability to hold the investment are considered in conjunction with an evaluation of the strength of the underlying collateral and the extent to which the investment’s amortized cost or cost, as appropriate, exceeds its related market value.

As of August 31, 2019, we held approximately $97.9 million in equity securities. Additionally, as of August 31, 2019 and May 31, 2019, we held approximately $12.8 million and $12.3 million, respectively, in trading securities in relation to our deferred compensation plan.

Summarized below are the available-for-sale securities we held at August 31, 2019 and May 31, 2019 that were in an unrealized loss position and that were included in accumulated other comprehensive (loss), aggregated by the length of time the investments had been in that position:

	August 31, 2019					May 31, 2019
(In thousands)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Total investments with unrealized losses	$	6,802	$	(124	)	$	11,508	$	(311	)
Unrealized losses with a loss position for less than 12 months		283		-			806		(2	)
Unrealized losses with a loss position for more than 12 months		6,519		(124	)		10,702		(309	)

We have reviewed all of the securities included in the table above and have concluded that we have the ability and intent to hold these investments until their cost can be recovered, based upon the severity and duration of the decline. Therefore, we did not recognize any other-than-temporary impairment losses on these investments. The unrealized losses generally relate to investments whose fair values at August 31, 2019 were less than 15% below their original cost. From time to time, we may experience significant volatility in general economic and market conditions. If we were to experience unrealized losses that were to continue for longer periods of time, or arise to more significant levels of unrealized losses within our portfolio of investments in marketable securities in the future, we may recognize additional other-than-temporary impairment losses. As such, we continue to closely evaluate the status of our investments and our ability and intent to hold these investments.

The net carrying values of debt securities at August 31, 2019, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

(In thousands)	Amortized Cost		Fair Value
Due:
Less than one year	$	9,370	$	9,338
One year through five years		10,161		10,242
Six years through ten years		4,548		4,816
After ten years		1,175		1,337
	$	25,254	$	25,733