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Note 4 - Fair Value Measures (Tables)

9 Months Ended

21 Months Ended

May 31, 2014

May 31, 2014

Note 4 - Fair Value Measures (Tables) [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

		Fair Value Measurements at Reporting Date Using
May 31, 2014		Level 1				Level 2				Level 3				Total
Assets
Corporate money market funds ⁽¹⁾		$	73,570			$	0			$	0			$	73,570
Certificates of deposit ⁽²⁾			0				15,217				0				15,217
Derivative Instruments ⁽³⁾							1,394								1,394
Total assets measured at fair value		$	73,570			$	16,611			$	0			$	90,181

Liabilities
Derivative instruments ⁽³⁾		$	0			$	152			$	0			$	152
Total liabilities measured at fair value		$	0			$	152			$	0			$	152

		Fair Value Measurements at Reporting Date Using
August 31, 2013		Level 1				Level 2				Level 3				Total
Assets
Corporate money market funds ⁽¹⁾		$	156,693			$	0			$	0			$	156,693
Certificates of deposit ⁽²⁾			0				12,725				0				12,725
Total assets measured at fair value		$	156,693			$	12,725			$	0			$	169,418

Liabilities
Derivative instruments ⁽³⁾		$	0			$	7,740			$	0			$	7,740
Total liabilities measured at fair value		$	0			$	7,740			$	0			$	7,740

Reported Value Measurement [Member]

Note 4 - Fair Value Measures (Tables) [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

		Fair Value Measurements at Reporting Date Using
May 31, 2014		Level 1				Level 2				Level 3				Total
Cash and cash equivalents		$	73,570			$	0			$	0			$	73,570
Investments			0				15,217				0				15,217
Prepaid expenses and other current assets			0				114				0				114
Other assets			0				1,280				0				1,280
Total assets measured at fair value		$	73,570			$	16,611			$	0			$	90,181

Accounts payable and accrued expenses		$	0			$	152			$	0			$	152
Total liabilities measured at fair value		$	0			$	152			$	0			$	152

		Fair Value Measurements at Reporting Date Using
August 31, 2013		Level 1				Level 2				Level 3				Total
Cash and cash equivalents		$	156,693			$	0			$	0			$	156,693
Investments			0				12,725				0				12,725
Total assets measured at fair value		$	156,693			$	12,725			$	0			$	169,418

Accounts payable and accrued liabilities		$	0			$	3,085			$	0			$	3,085
Deferred rent and other non-current liabilities			0				4,655				0				4,655
Total liabilities measured at fair value		$	0			$	7,740			$	0			$	7,740