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Note 10 - Commitments and Contingencies (Tables) | 6 Months Ended
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Feb. 28, 2015
Commitments and Contingencies Disclosure [Abstract] |
Schedule Of Environmental Liabilities [Table Text Block] |
|  | February 28, 2015 |
Beginning balance as of August 30, 2014 |  | $ | 19,846 |
Payments made for which reserves had been provided |  |  | (1,683 | )
Insurance proceeds received |  |  | 65 |
Interest accretion |  |  | 302 |
Revision in estimates |  |  | 3,025 |
Change in discount rates |  |  | 946 |
Balance as of February 28, 2015 |  | $ | 22,501 |
Schedule Of Environmental Remediation Liabilities [Table Text Block] |
(In thousands) |  | 201 5 |  |  | 201 6 |  |  | 201 7 |  |  | 201 8 |  |  | 201 9 |  |  | Thereafter |  |  | Total |
Estimated costs – current dollars |  | $ | 3,536 |  |  | $ | 4,940 |  |  | $ | 1,663 |  |  | $ | 745 |  |  | $ | 863 |  |  | $ | 12,406 |  |  | $ | 24,153 |
Estimated insurance proceeds |  |  | (107 | ) |  |  | (159 | ) |  |  | (173 | ) |  |  | (159 | ) |  |  | (173 | ) |  |  | (1,430 | ) |  |  | (2,201 | )
Net anticipated costs |  | $ | 3,429 |  |  | $ | 4,781 |  |  | $ | 1,490 |  |  | $ | 586 |  |  | $ | 690 |  |  | $ | 10,976 |  |  | $ | 21,952 |
Effect of inflation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,377 |
Effect of discounting |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (6,828 | )
Balance as of February 28, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 22,501 |

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- Definition Tabular disclosure of the components of the environmental liabilities as of period end. + References No definition available. + Details
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- Definition Tabular disclosure of environmental remediation costs less estimated insurance proceeds including the effects of inflation and discounting the costs to present value. + References No definition available. + Details
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- Details
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