XML 55 R34.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stockholders' Equity - Summary of Stock Option Activity (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Jul. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock Options, Outstanding, April 30, 2014 1,368
Stock Options, Granted 100
Stock Options, Exercised (33)
Stock Options, Forfeited (115)
Stock Options, Outstanding, July 31, 2014 1,320
Stock Options, Exercisable, July 31, 2014 879
Stock Options, Expected to vest, July 31, 2014 1,319
Weighted Average Exercise Price, Outstanding, April 30, 2014 $ 8.65
Weighted Average Exercise Price, Granted $ 4.86
Weighted Average Exercise Price, Exercised $ 4.30
Weighted Average Exercise Price, Forfeited $ 13.28
Weighted Average Exercise Price, Outstanding, July 31, 2014 $ 8.07
Weighted Average Exercise Price, Exercisable, July 31,2014 $ 9.81
Weighted Average Exercise Price, Expected to vest, July 31, 2014 $ 8.07
Weighted Average Remaining Contractual Term, Outstanding 5 years 2 months 12 days
Weighted Average Remaining Contractual Term, Exercisable 3 years 4 months 24 days
Weighted Average Remaining Contractual Term, Expected to vest 5 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding, July 31, 2014 $ 343
Aggregate Intrinsic Value, Exercisable, July 31, 2014 183
Aggregate Intrinsic Value, Expected to vest, July 31, 2014 $ 343