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Long-Lived Assets (Tables) | 12 Months Ended
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Apr. 26, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill related to each reportable segment for the fiscal year ended April 26, 2014 were as follows:
| Live Events |  | Commercial |  | Transportation |  | International |  | Total
Balance as of April 27, 2013: | $ | 2,417 |  |  | $ | 725 |  |  | $ | 164 |  |  | $ | — |  |  | $ | 3,306 |
Acquisition, net of cash acquired | — |  |  | — |  |  | — |  |  | 1,250 |  |  | 1,250 |
Foreign currency translation | (36 | ) |  | (2 | ) |  | (35 | ) |  | 75 |  |  | 2 |
Balance as of April 26, 2014: | $ | 2,381 |  |  | $ | 723 |  |  | $ | 129 |  |  | $ | 1,325 |  |  | $ | 4,558 |
Schedule of Definite-Lived Intangible and Indefinite-Lived Intangible Assets | The following table sets forth the gross carrying amount and accumulated amortization of intangible assets by major intangible class as of April 26, 2014 and April 27, 2013:
|  |  | April 26, 2014 |  | April 27, 2013
| Weighted Average Life (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Value
Definite-lived: |  |  |  |  |  |  |  |  |  |  |  |  |
Patents | 10 |  | $ | 2,282 |  |  | $ | 1,730 |  |  | $ | 552 |  |  | $ | 2,282 |  |  | $ | 1,502 |  |  | $ | 780 |
Registered Trademarks | 20 |  | 1,216 |  |  | 59 |  |  | 1,157 |  |  | — |  |  | — |  |  | — |
Other | 9 |  | 648 |  |  | 78 |  |  | 570 |  |  | — |  |  | — |  |  | — |
| 13 |  | 4,146 |  |  | 1,867 |  |  | 2,279 |  |  | 2,282 |  |  | 1,502 |  |  | 780 |
Indefinite-lived: |  |  |  |  |  |  |  |  |  |  |  |  |
Registered trademarks |  |  | 401 |  |  | — |  |  | 401 |  |  | 401 |  |  | — |  |  | 401 |
|  |  | $ | 4,547 |  |  | $ | 1,867 |  |  | $ | 2,680 |  |  | $ | 2,683 |  |  | $ | 1,502 |  |  | $ | 1,181 |

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- Definition Schedule of Definite-Lived Intangible and Indefinite-Lived Intangible Assets [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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