Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

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Fair Value Measurements (Details 2) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Jul. 31, 2012
Ending balance July 31, 2012 $ 9,513 [1]
Accrued Contingent Consideration [Member]
  
Ending balance April 30, 2012 10,871
Change in fair value of contingent consideration 46
Contingency payment (2,754)
Additional contingent earnout 1,800
Translation adjustment (450)
Ending balance July 31, 2012 $ 9,513
[1] The fair value of our contingent consideration arrangement is determined based on our evaluation as to the probability and amount of any earn-out that will be achieved based on expected future performance by the acquired entity, as well as the fair value of fixed purchase price.