Note 4 - Stock-based Compensation	3 Months Ended
Aug. 01, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	4. STOCK-BASED COMPENSATION During the three months ended August 1, 2020, options to purchase 14,000 shares were exercised (weighted average exercise price of $9.95 per share). At August 1, 2020, options to purchase 173,045 shares (weighted average exercise price of $14.71 per share) were outstanding and stock-based awards to purchase 2,798,252 shares of common stock were available for grant.

The entire disclosure for share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI http://asc.fasb.org/topic&trid=2228938

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