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Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2017
Aug. 31, 2016
Income Taxes [Abstract]    
Accrued payroll and related expenses $ 1,252 $ 1,621
Account receivable 644 498
Reserves and accruals 2,393 2,292
Unrealized exchange loss 25 992
Stock-based compensation expense 3,213 2,976
Uniform capitalization 1,598 1,473
Tax credit carryforwards 2,309 2,038
Other 1,264 2,043
Total gross deferred tax assets 12,698 13,933
Valuation allowance (2,328) (2,054)
Total net deferred tax assets 10,370 11,879
Property and equipment, net (2,109) (558)
Amortization of tax goodwill and intangible assets (26,036) (26,321)
Investments in partnerships (679) (744)
Total deferred tax liabilities (28,824) (27,623)
Net deferred tax liabilities $ (18,454) $ (15,744)