Note 4 - Stock-Based Compensation	6 Months Ended
Note 4 - Stock-Based Compensation	Nov. 01, 2014
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	4 . STOCK-BASED COMPENSATION During the six months ended November 1, 2014, options to purchase 276,800 shares of common stock were granted (weighted average exercise price of $17.84 per share), options to purchase 6,900 shares were exercised (weighted average exercise price of $5.75 per share) and options to purchase 6,300 shares were cancelled (weighted average exercise price of $17.29). At November 1, 2014, options to purchase 667,955 shares (weighted average exercise price of $10.89 per share) were outstanding and stock-based awards to purchase 2,767,589 shares of common stock were available for grant.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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