Note 7 - Alternative Fuel Mixture Credits/Cellulosic Biofuel Credits	12 Months Ended
Jun. 30, 2013
Tax Credit Carryforward, Limitations on Use [Abstract]
Tax Credit Carryforward, Limitations on Use	NOTE 7: ALTERNATIVE FUEL MIXTURE CREDITS / CELLULOSIC BIOFUEL CREDITS The U.S. Internal Revenue Code of 1986, as amended, permitted a refundable excise tax credit (until December 31, 2009, when the credit expired) under certain circumstances for the production and use of alternative fuels and alternative fuel mixtures in lieu of fossil-based fuels (the “AFMC”) equal to $0.50 per gallon of alternative fuel contained in the mixture. We qualified for the AFMC because we produce liquid fuels derived from biomass, by-products of our wood pulping process, and utilize those fuels to power our Foley Plant. The AFMCs are subject to audit by the IRS. On July 9, 2010, the IRS Office of Chief Counsel released legal advice concluding that black liquor sold or used before January 1, 2010 qualified for the cellulosic biofuel credit (“CBC”). Each gallon of black liquor produced and used as a fuel by us in our business operations during calendar 2009 qualified for CBC. For 2011, we recognized an income tax benefit in our consolidated statement of operations of $20,327 related to the CBC claimed for the period from January 1, 2009 to February 11, 2009 before we began mixing diesel with black liquor. We also received Form 637 CB Registration approval during the year ended June 30, 2011, which included additional guidance on converting alternative fuel mixture credits (“AFMC”) for gallons of black liquor produced and used by us from February 12, 2009 through December 31, 2009, the time period that we mixed diesel with black liquor to claim AFMCs. Converting the AFMCs to CBC for all gallons of the black liquor mixed with diesel would produce an additional benefit of approximately $56,278. Utilization of this additional benefit is dependent on cash tax liabilities subject to annual tax credit limitations on taxable income for tax years ending June 30, 2011, through June 30, 2017, when the credit carryforward period would expire. We intend to amend our tax returns for 2009 and 2010, as necessary, to exchange the AFMC previously claimed during those years for the more advantageous CBC to the extent we believe the CBC can be utilized prior to expiration. For 2011, we recognized $31,131 of income tax benefit in our consolidated statement of operations related to the expected incremental benefit from exchanging previously claimed AFMC for CBC based upon our expected ability to utilize the CBC prior to expiration. This amount was net of $1,521 of interest that was expected to be owed the U.S. government for the use of funds from the date that the AFMC refunds, expected to be exchanged for CBC, were received to July 9, 2010 when the IRS ruled that these credits could be exchanged for CBC. For 2013 and 2012, we recognized $4,586 and $9,040, respectively, of income tax benefit in our consolidated statement of operations related to changes in our estimates of the expected incremental benefit from exchanging previously claimed AFMC for CBC based upon our expected ability to utilize the CBC prior to expiration. We will continue to evaluate our ability to utilize the CBC and will amend our tax returns for 2009 and 2010 in order to convert appropriate amounts of AFMC to CBC until such time that the statute of limitations expires for 2009 and 2010. We may recognize up to an additional $11,521 of tax benefit if future earnings forecasts project that we will be able to utilize CBC prior to the expiration of the credit carryforward period on June 30, 2017. Estimating the amount of the CBC benefit recognized requires us to make assumptions and estimates about future taxable income affecting the realization of these tax benefits. The key assumptions in estimating future profitability relate to future selling prices and volumes, operating reliability, raw material, energy, chemical and freight costs, and various other projected economic factors as reflected in our internal planning models including interest cost and the impact of currency exchange rates. These models take into account recent sales and cost data as well as macroeconomic drivers including gross domestic product growth, customer demand and industry capacity. Other assumptions affecting estimates of future taxable income include: significant book-to-tax differences impacting future credit utilization, cost recovery of existing and future capital assets and the domestic manufacturing deduction. Our current forecasts of these book-to-tax differences are based on expected capital acquisitions and operating results. Significant changes to any of these key assumptions could have a material impact on the estimate of CBC utilization. As key factors in these models change in future periods, we will update our projections and revise the estimate of the CBC benefit expected to be utilized. Such changes to the estimate may be significant. As of June 30, 2013 and June 30, 2012, we had recorded a liability of $49,352 and $61,661, respectively, related to the repayment of AFMC refunds to the U.S. government in exchange for CBC. The current portion of the liability as of June 30, 2013 and June 30, 2012 was $0 and $11,920, respectively, included in accrued expenses, and the noncurrent portion was $49,352 and $49,741, respectively. We forecast expected repayment of the liability annually in amounts needed to generate sufficient CBC to offset each respective year’s cash tax liability subject to annual tax credit limitations imposed by law. Based on our current forecasts, we anticipate the noncurrent liability to be paid during fiscal year 2015. On August 22, 2012, the Internal Revenue Service Chief Counsel Office released legal advice concluding that no interest is due on the AFMC cash refunds in the CBC exchange. Consequently, in the fourth quarter ending June 30, 2012, we reversed our accrual of related interest in the amount of $8,093 and the related deferred tax asset in the amount of $2,928.

Note 7 - Alternative Fuel Mixture Credits/Cellulosic Biofuel Credits

12 Months Ended

Jun. 30, 2013

Tax Credit Carryforward, Limitations on Use [Abstract]

Tax Credit Carryforward, Limitations on Use

NOTE 7: ALTERNATIVE FUEL MIXTURE CREDITS / CELLULOSIC BIOFUEL CREDITS

The U.S. Internal Revenue Code of 1986, as amended, permitted a refundable excise tax credit (until December 31, 2009, when the credit expired) under certain circumstances for the production and use of alternative fuels and alternative fuel mixtures in lieu of fossil-based fuels (the “AFMC”) equal to $0.50 per gallon of alternative fuel contained in the mixture. We qualified for the AFMC because we produce liquid fuels derived from biomass, by-products of our wood pulping process, and utilize those fuels to power our Foley Plant. The AFMCs are subject to audit by the IRS.

On July 9, 2010, the IRS Office of Chief Counsel released legal advice concluding that black liquor sold or used before January 1, 2010 qualified for the cellulosic biofuel credit (“CBC”). Each gallon of black liquor produced and used as a fuel by us in our business operations during calendar 2009 qualified for CBC. For 2011, we recognized an income tax benefit in our consolidated statement of operations of $20,327 related to the CBC claimed for the period from January 1, 2009 to February 11, 2009 before we began mixing diesel with black liquor.

We also received Form 637 CB Registration approval during the year ended June 30, 2011, which included additional guidance on converting alternative fuel mixture credits (“AFMC”) for gallons of black liquor produced and used by us from February 12, 2009 through December 31, 2009, the time period that we mixed diesel with black liquor to claim AFMCs. Converting the AFMCs to CBC for all gallons of the black liquor mixed with diesel would produce an additional benefit of approximately $56,278. Utilization of this additional benefit is dependent on cash tax liabilities subject to annual tax credit limitations on taxable income for tax years ending June 30, 2011, through June 30, 2017, when the credit carryforward period would expire. We intend to amend our tax returns for 2009 and 2010, as necessary, to exchange the AFMC previously claimed during those years for the more advantageous CBC to the extent we believe the CBC can be utilized prior to expiration.

For 2011, we recognized $31,131 of income tax benefit in our consolidated statement of operations related to the expected incremental benefit from exchanging previously claimed AFMC for CBC based upon our expected ability to utilize the CBC prior to expiration. This amount was net of $1,521 of interest that was expected to be owed the U.S. government for the use of funds from the date that the AFMC refunds, expected to be exchanged for CBC, were received to July 9, 2010 when the IRS ruled that these credits could be exchanged for CBC.

For 2013 and 2012, we recognized $4,586 and $9,040, respectively, of income tax benefit in our consolidated statement of operations related to changes in our estimates of the expected incremental benefit from exchanging previously claimed AFMC for CBC based upon our expected ability to utilize the CBC prior to expiration. We will continue to evaluate our ability to utilize the CBC and will amend our tax returns for 2009 and 2010 in order to convert appropriate amounts of AFMC to CBC until such time that the statute of limitations expires for 2009 and 2010. We may recognize up to an additional $11,521 of tax benefit if future earnings forecasts project that we will be able to utilize CBC prior to the expiration of the credit carryforward period on June 30, 2017.

Estimating the amount of the CBC benefit recognized requires us to make assumptions and estimates about future taxable income affecting the realization of these tax benefits. The key assumptions in estimating future profitability relate to future selling prices and volumes, operating reliability, raw material, energy, chemical and freight costs, and various other projected economic factors as reflected in our internal planning models including interest cost and the impact of currency exchange rates. These models take into account recent sales and cost data as well as macroeconomic drivers including gross domestic product growth, customer demand and industry capacity. Other assumptions affecting estimates of future taxable income include: significant book-to-tax differences impacting future credit utilization, cost recovery of existing and future capital assets and the domestic manufacturing deduction. Our current forecasts of these book-to-tax differences are based on expected capital acquisitions and operating results. Significant changes to any of these key assumptions could have a material impact on the estimate of CBC utilization. As key factors in these models change in future periods, we will update our projections and revise the estimate of the CBC benefit expected to be utilized. Such changes to the estimate may be significant.

As of June 30, 2013 and June 30, 2012, we had recorded a liability of $49,352 and $61,661, respectively, related to the repayment of AFMC refunds to the U.S. government in exchange for CBC. The current portion of the liability as of June 30, 2013 and June 30, 2012 was $0 and $11,920, respectively, included in accrued expenses, and the noncurrent portion was $49,352 and $49,741, respectively. We forecast expected repayment of the liability annually in amounts needed to generate sufficient CBC to offset each respective year’s cash tax liability subject to annual tax credit limitations imposed by law. Based on our current forecasts, we anticipate the noncurrent liability to be paid during fiscal year 2015.

On August 22, 2012, the Internal Revenue Service Chief Counsel Office released legal advice concluding that no interest is due on the AFMC cash refunds in the CBC exchange. Consequently, in the fourth quarter ending June 30, 2012, we reversed our accrual of related interest in the amount of $8,093 and the related deferred tax asset in the amount of $2,928.