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Note 3 - Stock-based Compensation (Tables) | 6 Months Ended
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Nov. 27, 2016
Notes Tables |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | November 27, 2016 |  |  | November 29, 2015 |  |  | November 27, 2016 |  |  | November 29, 2015 |
Options |  | $ | 307 |  |  | $ | 360 |  |  | $ | 599 |  |  | $ | 690 |
RSUs |  |  | 659 |  |  |  | 540 |  |  |  | 1,174 |  |  |  | 1,007 |
Total stock-based compensation |  | $ | 966 |  |  | $ | 900 |  |  | $ | 1,773 |  |  | $ | 1,697 |
|  | Three Months Ended |  |  | Six Months Ended |
|  | November 27, 2016 |  |  | November 29, 2015 |  |  | November 27, 2016 |  |  | November 29, 2015 |
Cost of sales |  | $ | 124 |  |  | $ | 100 |  |  | $ | 237 |  |  | $ | 198 |
Research and development |  |  | 23 |  |  |  | 23 |  |  |  | 46 |  |  |  | 45 |
Selling, general and administrative |  |  | 819 |  |  |  | 777 |  |  |  | 1,490 |  |  |  | 1,454 |
Total stock-based compensation |  | $ | 966 |  |  | $ | 900 |  |  | $ | 1,773 |  |  | $ | 1,697 |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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