Note 10 - Income Taxes	9 Months Ended
Jun. 30, 2011
Income Tax Disclosure [Abstract]
Income Tax Disclosure Text Block	Our effective tax rate for each of the three months ended June 30, 2011 and 2010 was 39.1%. Our effective tax rate for the nine months ended June 30, 2011 and 2010 was 38.7% and 39.2%, respectively. The decrease in the effective tax rate is primarily due to the impact of the Centaur acquisition, which includes direct acquisition-related expenses in the prior year that were non-deductible for tax purposes as well as Centaur's contribution to earnings at a lower effective tax rate. As of June 30, 2011, we had $23 of unrecognized tax benefits, of which $15 would impact our effective rate if recognized. Our policy for classifying interest and penalties associated with unrecognized tax benefits is to include such items in income tax expense. The amount of interest and penalties recognized during the three months ended June 30, 2011 and 2010 was not material. We filed Form 3115 Application of Change in Accounting Method with the Internal Revenue Service during the fiscal year ended September 30, 2008. We filed an advance consent request for a non-automatic account method change for tax purposes for which we received approval during the three months ended March 31, 2011. The method change will make revenue recognition for tax purposes the same as revenue recognized for book purposes. The approval of the method change decreased the liability for unrecognized tax benefits by $175 for the nine months ended June 30, 2011. With few exceptions, we are no longer subject to income tax examination for years before 2005 in the U.S. and significant state and local jurisdictions. We are no longer subject to income tax examination for years before 2009 in significant foreign jurisdictions.

Note 10 - Income Taxes

9 Months Ended

Jun. 30, 2011

Our effective tax rate for each of the three months ended June 30, 2011 and 2010 was 39.1%. Our effective tax rate for the nine months ended June 30, 2011 and 2010 was 38.7% and 39.2%, respectively. The decrease in the effective tax rate is primarily due to the impact of the Centaur acquisition, which includes direct acquisition-related expenses in the prior year that were non-deductible for tax purposes as well as Centaur's contribution to earnings at a lower effective tax rate.

As of June 30, 2011, we had $23 of unrecognized tax benefits, of which $15 would impact our effective rate if recognized. Our policy for classifying interest and penalties associated with unrecognized tax benefits is to include such items in income tax expense. The amount of interest and penalties recognized during the three months ended June 30, 2011 and 2010 was not material.

We filed Form 3115 Application of Change in Accounting Method with the Internal Revenue Service during the fiscal year ended September 30, 2008. We filed an advance consent request for a non-automatic account method change for tax purposes for which we received approval during the three months ended March 31, 2011. The method change will make revenue recognition for tax purposes the same as revenue recognized for book purposes. The approval of the method change decreased the liability for unrecognized tax benefits by $175 for the nine months ended June 30, 2011.

With few exceptions, we are no longer subject to income tax examination for years before 2005 in the U.S. and significant state and local jurisdictions. We are no longer subject to income tax examination for years before 2009 in significant foreign jurisdictions.