New Accounting Standards

9 Months Ended

Jan. 31, 2013

New Accounting Standards [Abstract]

New Accounting Standards

17.  New Accounting Standards  

In September 2011, the FASB issued Accounting Standards Update 2011-08, “Intangibles – Goodwill and Other (Topic 350): Testing Goodwill for Impairment.” Under the amendments in this guidance, an entity may consider qualitative factors before applying Step 1 of the goodwill impairment assessment, but may no longer be permitted to carry forward estimates of a reporting unit’s fair value from a prior year when specific criteria are met. These amendments were effective for us as the beginning of our current fiscal year. We adopted this guidance as of May 1, 2012, and this new guidance did not have a material effect on our consolidated financial statements.