Employee Stock and Savings Plans

3 Months Ended

Apr. 30, 2012

Notes To Financial Statements [Abstract]

Employee Stock and Savings Plans

Employee Stock and Savings Plans

Stock Options Plans and Stock Plans

Our 2010 Omnibus Incentive Plan (Incentive Plan) is administered by the Compensation Committee of our Board of Directors and permits accelerated vesting of outstanding options, restricted stock units, restricted stock awards, and other equity incentives upon the occurrence of certain changes in control of our company. Stock options and restricted stock units under the Incentive Plan are generally expected to vest over four years. Stock options have an expiration date of ten years from the date of grant and an exercise price no less than the fair market value of the shares on the date of grant.

Employee Stock Purchase Plans

We have an employee stock purchase plan (ESPP) for U.S. employees and an ESPP for certain foreign subsidiary employees. The ESPPs provide for six-month offerings commencing on January 1 and July 1 of each year with purchases on June 30 and December 31 of each year. Each eligible employee may purchase up to six thousand shares of stock on each purchase date (but no more than an annual offering date total fair market value of $25) at prices no less than 85% of the lesser of the fair market value of the shares on the offering date or on the purchase date.

Stock-Based Compensation Expense

The following table summarizes stock compensation expense recognized:

Three months ended April 30,	2012		2011
Cost of revenues	$	319	$	267
Operating expenses:
Research and development	2,117		2,139
Marketing and selling	1,549		1,615
General and administration	1,162		1,659
Equity plan-related compensation expense	$	5,147	$	5,680