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Note 5 - Fair Value Measures (Tables)

12 Months Ended

Aug. 31, 2019

Notes Tables

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

		Fair Value Measurements at August 31, 2019
(in thousands)		Level 1				Level 2				Level 3				Total
Assets
Corporate money market funds⁽¹⁾		$	75,849			$	—			$	—			$	75,849
Mutual Funds⁽²⁾			—				18,583				—				18,583
Certificates of deposit⁽³⁾			—				7,090				—				7,090
Derivative instruments⁽⁴⁾			—				520				—				520
Total assets measured at fair value		$	75,849			$	26,193			$	—			$	102,042

Liabilities
Derivative instruments⁽⁴⁾		$	—			$	3,575			$	—			$	3,575
Total liabilities measured at fair value		$	—			$	3,575			$	—			$	3,575

		Fair Value Measurements at August 31, 2018
(in thousands)		Level 1				Level 2				Level 3				Total
Assets
Corporate money market funds⁽¹⁾		$	75			$	—			$	—			$	75
Mutual Funds⁽²⁾			—				18,668				—				18,668
Certificates of deposit⁽³⁾			—				10,591				—				10,591
Derivative instruments⁽⁴⁾			—				90				—				90
Total assets measured at fair value		$	75			$	29,349			$	—			$	29,424

Liabilities
Derivative instruments⁽⁴⁾		$	—			$	4,036			$	—			$	4,036
Total liabilities measured at fair value		$	—			$	4,036			$	—			$	4,036