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Note 4 - Stock-based Compensation (Tables)

9 Months Ended

Feb. 25, 2018

Notes Tables

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

		Three Months Ended								Nine Months Ended
		February 25, 2018				February 26, 2017				February 25, 2018				February 26, 2017
Options		$	380			$	308			$	1,057			$	907
RSUs			762				761				2,155				1,935
Total stock-based compensation		$	1,147			$	1,069			$	3,212			$	2,842

		Three Months Ended								Nine Months Ended
		February 25, 2018				February 26, 2017				February 25, 2018				February 26, 2017
Cost of sales		$	137			$	124			$	398			$	361
Research and development			41				23				82				69
Selling, general and administrative			969				922				2,732				2,412
Total stock-based compensation		$	1,147			$	1,069			$	3,212			$	2,842