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Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2018
Aug. 31, 2017
Income Taxes [Abstract]    
Accrued payroll and related expenses $ 916 $ 1,252
Account receivable 303 644
Reserves and accruals 1,496 2,393
Stock-based compensation expense 2,321 3,213
Uniform capitalization 959 1,598
Tax credit carryforwards 2,790 2,309
Other 938 1,289
Total gross deferred tax assets 9,723 12,698
Valuation allowance (2,505) (2,328)
Total net deferred tax assets 7,218 10,370
Property and equipment, net (1,305) (2,109)
Amortization of tax goodwill and intangible assets (16,108) (26,036)
Investments in partnerships (222) (679)
Other (122)  
Total deferred tax liabilities (17,757) (28,824)
Net deferred tax liabilities $ (10,539) $ (18,454)