INVESTMENT SECURITIES

9 Months Ended

Apr. 30, 2012

Investments, Debt and Equity Securities [Abstract]

INVESTMENT SECURITIES

INVESTMENT SECURITIES

The following is a summary of the Company’s available-for-sale investment securities by category which are classified within other non-current assets in the Company’s condensed consolidated balance sheets. Contractual maturity dates of debt securities held by the trust at April 30, 2012 range from 2012 to 2044.

	Cost/ Amortized Cost Basis		Fair Value		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Net Unrealized Holding Gains
April 30, 2012
Equity securities	$	1,022	$	1,017	$	—	$	(5	)	$	(5	)
Debt securities:
Corporate	33,903		35,641		1,789		(51		)	1,738
U.S. Treasury	5,363		5,787		424		—			424
Federal agency	27,669		29,340		1,674		(3		)	1,671
Mortgage-backed	6,144		6,363		244		(25		)	219
Municipal government	1,000		1,004		4		—			4
	$	75,101	$	79,152	$	4,135	$	(84	)	$	4,051
July 31, 2011
Equity securities	$	2,381	$	12,064	$	9,683	$	—		$	9,683
Debt securities:
Corporate	30,239		32,020		1,814		(33		)	1,781
U.S. Treasury	9,544		10,210		666		—			666
Federal agency	28,042		29,404		1,362		—			1,362
Mortgage-backed	6,242		6,356		144		(30		)	114
Municipal government	1,000		1,002		2		—			2
	$	77,448	$	91,056	$	13,671	$	(63	)	$	13,608

The following table shows the gross unrealized losses and fair value of the Company’s available-for-sale investments with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

	Less than 12 months				12 months or greater				Total
	Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding Losses
April 30, 2012
Debt securities:
Corporate	$	5,013	$	51	$	—	$	—	$	5,013	$	51
Mortgage-backed	—		—		1,506		25		$	1,506	$	25
Federal agency	386		3		—		—		386		3
Equity securities	28		5		—		—		28		5
	$	5,427	$	59	$	1,506	$	25	$	6,933	$	84

	Less than 12 months				12 months or greater				Total
	Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding Losses
July 31, 2011
Debt securities:
Mortgage-backed	$	1,502	$	30	$	—	$	—	$	1,502	$	30
Corporate	1,985		33		—		—		1,985		33
	$	3,487	$	63	$	—	$	—	$	3,487	$	63

The following table shows the proceeds and gross gains and losses from the sale of available-for-sale investments for the three and nine months ended April 30, 2012 and April 30, 2011:

	Three Months Ended				Nine Months Ended
	Apr 30, 2012		Apr 30, 2011		Apr 30, 2012		Apr 30, 2011
Proceeds from sales	$	5,473	$	4,891	$	26,700	$	19,103
Realized gross gains on sales	176		72		9,654		766
Realized gross losses on sales	12		8		28		20