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Segment Disclosure - Net Income by Segment (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 28, 2017 USD ($) | Jan. 30, 2016 USD ($) | Jan. 28, 2017 USD ($) segment | Jan. 30, 2016 USD ($)
Segment Reporting Information |  |  |  |
Number of business units | segment |  |  | 5 |
Net sales | $ 115,719 | $ 123,816 | $ 442,857 | $ 431,705
Contribution margin | 8,638 | 8,245 | 60,863 | 50,170
Depreciation and amortization |  |  |  |
Depreciation and amortization | 4,699 | 4,248 | 14,771 | 12,562
Non-allocated operating expenses: |  |  |  |
General and administrative | 8,599 | 7,908 | 26,007 | 24,194
Product design and development | 6,973 | 5,883 | 21,142 | 19,826
Operating (loss) income | (6,934) | (5,546) | 13,714 | 6,150
Nonoperating income (expense): |  |  |  |
Interest income | 183 | 230 | 559 | 794
Interest expense | (56) | (113) | (174) | (203)
Other (expense) income, net | (305) | 7 | (250) | (667)
(Loss) income before income taxes | (7,112) | (5,422) | 13,849 | 6,074
Income tax (benefit) expense | (1,985) | (3,469) | 4,416 | 1,083
Net (loss) income | (5,127) | (1,953) | 9,433 | 4,991
Commerical |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 36,165 | 29,385 | 112,342 | 112,661
Contribution margin | 3,138 | 696 | 13,471 | 10,802
Depreciation and amortization |  |  |  |
Depreciation and amortization | 1,616 | 1,208 | 4,777 | 3,599
Live Events |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 41,036 | 51,067 | 157,032 | 149,750
Contribution margin | 3,211 | 4,046 | 20,744 | 17,031
Depreciation and amortization |  |  |  |
Depreciation and amortization | 1,245 | 1,258 | 3,798 | 3,676
High School Park and Recreation [Member] |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 12,653 | 10,940 | 68,977 | 54,152
Contribution margin | 617 | 143 | 14,366 | 7,703
Depreciation and amortization |  |  |  |
Depreciation and amortization | 421 | 436 | 1,310 | 1,294
Transportation |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 9,130 | 11,698 | 39,517 | 38,759
Contribution margin | 1,373 | 2,694 | 9,505 | 9,057
Depreciation and amortization |  |  |  |
Depreciation and amortization | 311 | 344 | 957 | 1,012
International |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 16,735 | 20,726 | 64,989 | 76,383
Contribution margin | 299 | 666 | 2,777 | 5,577
Depreciation and amortization |  |  |  |
Depreciation and amortization | 423 | 310 | 1,914 | 908
Unallocated |  |  |  |
Depreciation and amortization |  |  |  |
Depreciation and amortization | $ 683 | $ 692 | $ 2,015 | $ 2,073

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