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Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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May 01, 2021 | May 02, 2020 | Apr. 27, 2019
Net sales | $ 482,033 | $ 608,932 | $ 569,704
Transferred at Point in Time [Member] |  |  |
Net sales | 237,576 | 285,701 | 276,951
Transferred over Time [Member] |  |  |
Net sales | 244,457 | 323,231 | 292,753
Unique Configuration [Member] |  |  |
Net sales | 202,139 | 278,405 | 250,011
Limited Configuration [Member] |  |  |
Net sales | 234,069 | 279,224 | 271,786
Service and Other [Member] |  |  |
Net sales | 45,825 | 51,303 | 47,907
Commercial [Member] |  |  |
Net sales | 127,300 | 152,627 | 148,833
Commercial [Member] | Transferred at Point in Time [Member] |  |  |
Net sales | 98,243 | 105,096 | 111,617
Commercial [Member] | Transferred over Time [Member] |  |  |
Net sales | 29,057 | 47,531 | 37,216
Commercial [Member] | Unique Configuration [Member] |  |  |
Net sales | 16,535 | 35,212 | 25,171
Commercial [Member] | Limited Configuration [Member] |  |  |
Net sales | 96,420 | 102,847 | 108,921
Commercial [Member] | Service and Other [Member] |  |  |
Net sales | 14,345 | 14,568 | 14,741
Live Events [Member] |  |  |
Net sales | 143,049 | 196,591 | 170,952
Live Events [Member] | Transferred at Point in Time [Member] |  |  |
Net sales | 23,906 | 39,521 | 35,313
Live Events [Member] | Transferred over Time [Member] |  |  |
Net sales | 119,143 | 157,070 | 135,639
Live Events [Member] | Unique Configuration [Member] |  |  |
Net sales | 104,682 | 140,044 | 119,569
Live Events [Member] | Limited Configuration [Member] |  |  |
Net sales | 18,679 | 31,897 | 30,107
Live Events [Member] | Service and Other [Member] |  |  |
Net sales | 19,688 | 24,650 | 21,276
High School Park and Recreation [Member] |  |  |
Net sales | 91,557 | 96,414 | 91,187
High School Park and Recreation [Member] | Transferred at Point in Time [Member] |  |  |
Net sales | 60,859 | 68,582 | 60,763
High School Park and Recreation [Member] | Transferred over Time [Member] |  |  |
Net sales | 30,698 | 27,832 | 30,424
High School Park and Recreation [Member] | Unique Configuration [Member] |  |  |
Net sales | 22,258 | 19,176 | 21,792
High School Park and Recreation [Member] | Limited Configuration [Member] |  |  |
Net sales | 66,697 | 74,266 | 66,825
High School Park and Recreation [Member] | Service and Other [Member] |  |  |
Net sales | 2,602 | 2,972 | 2,570
Transportation [Member] |  |  |
Net sales | 58,284 | 70,139 | 64,391
Transportation [Member] | Transferred at Point in Time [Member] |  |  |
Net sales | 20,180 | 25,157 | 24,500
Transportation [Member] | Transferred over Time [Member] |  |  |
Net sales | 38,104 | 44,982 | 39,891
Transportation [Member] | Unique Configuration [Member] |  |  |
Net sales | 36,398 | 43,519 | 38,490
Transportation [Member] | Limited Configuration [Member] |  |  |
Net sales | 19,690 | 24,588 | 23,799
Transportation [Member] | Service and Other [Member] |  |  |
Net sales | 2,196 | 2,032 | 2,102
International [Member] |  |  |
Net sales | 61,843 | 93,161 | 94,341
International [Member] | Transferred at Point in Time [Member] |  |  |
Net sales | 34,388 | 47,345 | 44,758
International [Member] | Transferred over Time [Member] |  |  |
Net sales | 27,455 | 45,816 | 49,583
International [Member] | Unique Configuration [Member] |  |  |
Net sales | 22,266 | 40,454 | 44,989
International [Member] | Limited Configuration [Member] |  |  |
Net sales | 32,583 | 45,626 | 42,134
International [Member] | Service and Other [Member] |  |  |
Net sales | $ 6,994 | $ 7,081 | $ 7,218

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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