Fair Value Of Financial Instruments (Tables)

9 Months Ended

May 31, 2013

Fair Value Of Financial Instruments [Abstract]

Financial Assets Measured At Fair Value On A Recurring Basis

	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
May 31, 2013
Assets:
Cash equivalents	$	19,976	$	-	$	-	$	19,976
Restricted cash (current)		8,899		-		-		8,899
Restricted cash (noncurrent)		7,760		-		-		7,760
Total	$	36,635	$	-	$	-	$	36,635
August 31, 2012
Assets:
Cash equivalents	$	7,784	$	-	$	-	$	7,784
Restricted cash (current)		10,200		-		-		10,200
Restricted cash (noncurrent)		7,903		-		-		7,903
Total	$	25,887	$	-	$	-	$	25,887