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Note 6 - Stock-Based Compensation (Tables)

6 Months Ended

Nov. 25, 2012

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

		Three Months Ended November 25, 2012				Three Months Ended November 27, 2011				Six Months Ended November 25, 2012				Six Months Ended November 27, 2011
Research and development		$	104,000			$	130,000			$	214,000			$	254,000
Sales, general and administrative		$	219,000			$	314,000			$	457,000			$	631,000
Total stock-based compensation		$	323,000			$	444,000			$	671,000			$	885,000

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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