Income Taxes	6 Months Ended
Feb. 28, 2013
Income Tax Disclosure [Abstract]
Income Taxes	6—INCOME TAXES Effective Tax Rates The Company’s effective tax rates for the three- and six-month periods ended February 28, 2013 were 27% and 34%, respectively. The difference between the effective tax rates and the U.S. federal statutory tax rate was primarily due to state income taxes, offset by the tax benefit associated with the research and development tax credit. On January 2, 2013, the American Taxpayer Relief Act of 2012 was enacted, which retroactively reinstated, to January 1, 2012, several corporate tax provisions that had expired, including the research and development tax credit. The Company recorded $0.15 million in the second quarter of fiscal 2013 related to this tax credit for research and development activities in fiscal 2012, which reduced the effective tax rates by 9% and 3%, respectively, for the three- and six-month periods ended February 28, 2013. The Company’s effective tax rate for the first half of fiscal 2012 was 82%. The difference between the effective tax rate and the U.S. federal statutory tax rate was primarily due to state income taxes and dividends and accretion of discount on the Company’s 15% Series A Preferred Stock. The dividends and accretion of discount were reported as interest expense in the Condensed Consolidated Statements of Operations but were not deductible for tax return purposes. The Series A Preferred Stock was redeemed in the third and fourth quarters of fiscal 2012. Valuation Allowance In fiscal 2012, the Company recorded a $1.8 million valuation allowance primarily related to small ethanol producer tax credit carryforwards which expire in fiscal 2014. Tax laws require that any net operating loss carryforwards be utilized before the Company can utilize the small ethanol producer tax credit carryforwards. Due to the near-term expiration of the small ethanol producer tax credit carryforward period, the Company does not believe it has sufficient positive evidence to substantiate that the small ethanol tax credit carryforwards are realizable at a more-likely-than-not level of assurance and recorded a $1.8 million valuation allowance. The valuation allowance will be reversed in future periods if these tax credit carryforwards are utilized. At February 28, 2013, the Company had $12.7 million of net deferred tax assets. Other than for the ethanol tax credit carryforwards discussed above, a valuation allowance has not been provided on the net U.S. deferred tax assets as of February 28, 2013. The determination of the need for a valuation allowance requires significant judgment and estimates. The Company evaluates the requirement for a valuation allowance each quarter. The Company believes that it is more likely than not that future operations and the reversal of existing taxable temporary differences will generate sufficient taxable income to realize its deferred tax assets, except for the small ethanol producer tax credit carryforwards, for which a valuation allowance has been provided. Uncertain Tax Positions In the three- and six month periods ended February 28, 2013, the amount of unrecognized tax benefits increased by approximately $20,000 and $63,000, respectively. The total amount of unrecognized tax benefits at February 28, 2013 was $1.1 million, all of which, if recognized, would favorably impact the effective tax rate. At February 28, 2013, the Company had $0.2 million of accrued interest and penalties included in Other liabilities in the Condensed Consolidated Balance Sheets. Other The Company files tax returns in the U.S. federal jurisdiction and various U.S. state jurisdictions, and is subject to examination by taxing authorities in all of those jurisdictions. From time to time, the Company’s tax returns are reviewed or audited by U.S. federal and various U.S. state taxing authorities. The Company believes that adjustments, if any, resulting from these reviews or audits would not be material, individually or in the aggregate, to the Company’s financial position, results of operations or liquidity. It is reasonably possible that the amount of unrecognized tax benefits related to certain of the Company’s tax positions will increase or decrease in the next twelve months as audits or reviews are initiated and settled. At this time, an estimate of the range of a reasonably possible change cannot be made. The Company is not subject to income tax examinations by U.S. federal or state jurisdictions for fiscal years prior to 2007.

6—INCOME TAXES

Effective Tax Rates

The Company’s effective tax rates for the three- and six-month periods ended February 28, 2013 were 27% and 34%, respectively. The difference between the effective tax rates and the U.S. federal statutory tax rate was primarily due to state income taxes, offset by the tax benefit associated with the research and development tax credit. On January 2, 2013, the American Taxpayer Relief Act of 2012 was enacted, which retroactively reinstated, to January 1, 2012, several corporate tax provisions that had expired, including the research and development tax credit. The Company recorded $0.15 million in the second quarter of fiscal 2013 related to this tax credit for research and development activities in fiscal 2012, which reduced the effective tax rates by 9% and 3%, respectively, for the three- and six-month periods ended February 28, 2013.

The Company’s effective tax rate for the first half of fiscal 2012 was 82%. The difference between the effective tax rate and the U.S. federal statutory tax rate was primarily due to state income taxes and dividends and accretion of discount on the Company’s 15% Series A Preferred Stock. The dividends and accretion of discount were reported as interest expense in the Condensed Consolidated Statements of Operations but were not deductible for tax return purposes. The Series A Preferred Stock was redeemed in the third and fourth quarters of fiscal 2012.

Valuation Allowance

In fiscal 2012, the Company recorded a $1.8 million valuation allowance primarily related to small ethanol producer tax credit carryforwards which expire in fiscal 2014. Tax laws require that any net operating loss carryforwards be utilized before the Company can utilize the small ethanol producer tax credit carryforwards. Due to the near-term expiration of the small ethanol producer tax credit carryforward period, the Company does not believe it has sufficient positive evidence to substantiate that the small ethanol tax credit carryforwards are realizable at a more-likely-than-not level of assurance and recorded a $1.8 million valuation allowance. The valuation allowance will be reversed in future periods if these tax credit carryforwards are utilized.

At February 28, 2013, the Company had $12.7 million of net deferred tax assets. Other than for the ethanol tax credit carryforwards discussed above, a valuation allowance has not been provided on the net U.S. deferred tax assets as of February 28, 2013. The determination of the need for a valuation allowance requires significant judgment and estimates. The Company evaluates the requirement for a valuation allowance each quarter. The Company believes that it is more likely than not that future operations and the reversal of existing taxable temporary differences will generate sufficient taxable income to realize its deferred tax assets, except for the small ethanol producer tax credit carryforwards, for which a valuation allowance has been provided.

Uncertain Tax Positions

In the three- and six month periods ended February 28, 2013, the amount of unrecognized tax benefits increased by approximately $20,000 and $63,000, respectively. The total amount of unrecognized tax benefits at February 28, 2013 was $1.1 million, all of which, if recognized, would favorably impact the effective tax rate. At February 28, 2013, the Company had $0.2 million of accrued interest and penalties included in Other liabilities in the Condensed Consolidated Balance Sheets.

Other

The Company files tax returns in the U.S. federal jurisdiction and various U.S. state jurisdictions, and is subject to examination by taxing authorities in all of those jurisdictions. From time to time, the Company’s tax returns are reviewed or audited by U.S. federal and various U.S. state taxing authorities. The Company believes that adjustments, if any, resulting from these reviews or audits would not be material, individually or in the aggregate, to the Company’s financial position, results of operations or liquidity. It is reasonably possible that the amount of unrecognized tax benefits related to certain of the Company’s tax positions will increase or decrease in the next twelve months as audits or reviews are initiated and settled. At this time, an estimate of the range of a reasonably possible change cannot be made. The Company is not subject to income tax examinations by U.S. federal or state jurisdictions for fiscal years prior to 2007.