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Note 6 Goodwill and Intangible Assets (Policy)
12 Months Ended
Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

We use the income approach, based on estimated future cash flows, to perform the goodwill impairment test. Determining the fair value of a reporting unit is judgmental in nature and involves the use of significant estimates and assumptions. These estimates and assumptions include revenue growth rates and operating margins used to calculate projected future cash flows, discount rates and future economic and market conditions. Our estimates are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable. By their nature, these assumptions would not reflect unanticipated events and circumstances that may occur. Due to the significant unobservable inputs inherent in discounted cash flow methodologies, this method is classified as Level 3 in the fair value hierarchy.