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Note 7 - Accounting for Share-based Payment Arrangement Compensation
9 Months Ended
Sep. 30, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
(7)  Accounting for Share-based Payment Arrangement Compensation

We account for share-based payment arrangements in accordance with FASB ASC 718, Compensation – Stock Compensation. During the first nine months of 2011, there were no significant changes to the structure of our stock-based award plans. Pre-tax compensation expense related to stock options and performance unit awards recorded in the first nine months of 2011 and 2010 was $930,000 and $801,000, respectively.  See Note 9 to our consolidated financial statements in our 2010 Annual Report on Form 10-K for a detailed description of stock-based awards under our 2005 Stock Incentive Plan and 1995 Stock Incentive Plan.