Income Taxes	3 Months Ended
Feb. 28, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our income tax expense totaled $.1 million for the three months ended February 28, 2013 and $.4 million for the three months ended February 29, 2012. Due to the effects of our deferred tax asset valuation allowance and changes in our unrecognized tax benefits, our effective tax rates for the three months ended February 28, 2013 and February 29, 2012 are not meaningful items as our income tax amounts are not directly correlated to the amount of our pretax losses for those periods. In accordance with Accounting Standards Codification Topic No. 740, “Income Taxes” (“ASC 740”), we evaluate our deferred tax assets quarterly to determine if adjustments to the valuation allowance are required. ASC 740 requires that companies assess whether a valuation allowance should be established based on the consideration of all available evidence using a “more likely than not” standard with respect to whether deferred tax assets will be realized. The ultimate realization of deferred tax assets depends primarily on the generation of future taxable income during the periods in which the differences become deductible. The value of our deferred tax assets will depend on applicable income tax rates. During the three months ended February 28, 2013, we reduced our deferred tax asset valuation allowance by $.7 million to account for adjustments to our deferred tax assets associated with the vesting of equity-based awards. During the three months ended February 29, 2012, we recorded a valuation allowance of $18.3 million against net deferred tax assets generated from the pretax loss for the period. We had no net deferred tax assets at February 28, 2013 or November 30, 2012 as we maintained a full valuation allowance against our deferred tax assets. The deferred tax asset valuation allowance decreased to $879.4 million at February 28, 2013 from $880.1 million at November 30, 2012, reflecting the $.7 million valuation allowance adjustment recorded during the three months ended February 28, 2013. During the three months ended February 28, 2013, our total gross unrecognized tax benefits increased by $.1 million and we had no additions to our total gross unrecognized tax benefits as a result of the current status of federal and state tax audits. The total amount of gross unrecognized tax benefits, including interest and penalties, that would affect the effective tax rate was $1.4 million as of February 28, 2013. We anticipate that total unrecognized tax benefits will decrease by an amount ranging from $.7 million to $1.1 million during the 12 months from this reporting date due to various state tax filings associated with the resolution of a federal tax audit. The benefits of our net operating losses (“NOL”), built-in losses and tax credits would be reduced or potentially eliminated if we experienced an “ownership change” under Internal Revenue Code Section 382 (“Section 382”). Based on our analysis performed as of February 28, 2013, we do not believe we have experienced an ownership change as defined by Section 382, and, therefore, the NOLs, built-in losses and tax credits we have generated should not be subject to a Section 382 limitation as of this reporting date.

Income Taxes

3 Months Ended

Feb. 28, 2013

Our income tax expense totaled $.1 million for the three months ended February 28, 2013 and $.4 million for the three months ended February 29, 2012. Due to the effects of our deferred tax asset valuation allowance and changes in our unrecognized tax benefits, our effective tax rates for the three months ended February 28, 2013 and February 29, 2012 are not meaningful items as our income tax amounts are not directly correlated to the amount of our pretax losses for those periods.

In accordance with Accounting Standards Codification Topic No. 740, “Income Taxes” (“ASC 740”), we evaluate our deferred tax assets quarterly to determine if adjustments to the valuation allowance are required. ASC 740 requires that companies assess whether a valuation allowance should be established based on the consideration of all available evidence using a “more likely than not” standard with respect to whether deferred tax assets will be realized. The ultimate realization of deferred tax assets depends primarily on the generation of future taxable income during the periods in which the differences become deductible. The value of our deferred tax assets will depend on applicable income tax rates. During the three months ended February 28, 2013, we reduced our deferred tax asset valuation allowance by $.7 million to account for adjustments to our deferred tax assets associated with the vesting of equity-based awards. During the three months ended February 29, 2012, we recorded a valuation allowance of $18.3 million against net deferred tax assets generated from the pretax loss for the period.

We had no net deferred tax assets at February 28, 2013 or November 30, 2012 as we maintained a full valuation allowance against our deferred tax assets. The deferred tax asset valuation allowance decreased to $879.4 million at February 28, 2013 from $880.1 million at November 30, 2012, reflecting the $.7 million valuation allowance adjustment recorded during the three months ended February 28, 2013.

During the three months ended February 28, 2013, our total gross unrecognized tax benefits increased by $.1 million and we had no additions to our total gross unrecognized tax benefits as a result of the current status of federal and state tax audits. The total amount of gross unrecognized tax benefits, including interest and penalties, that would affect the effective tax rate was $1.4 million as of February 28, 2013. We anticipate that total unrecognized tax benefits will decrease by an amount ranging from $.7 million to $1.1 million during the 12 months from this reporting date due to various state tax filings associated with the resolution of a federal tax audit.

The benefits of our net operating losses (“NOL”), built-in losses and tax credits would be reduced or potentially eliminated if we experienced an “ownership change” under Internal Revenue Code Section 382 (“Section 382”). Based on our analysis performed as of February 28, 2013, we do not believe we have experienced an ownership change as defined by Section 382, and, therefore, the NOLs, built-in losses and tax credits we have generated should not be subject to a Section 382 limitation as of this reporting date.