Note 5 - Segment Reporting - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Net sales	$ 164,477	$ 127,367	$ 309,209	$ 271,011
Gross profit	32,264	33,314	64,452	69,075
Selling	12,482	12,654	24,277	24,210
General and administrative	8,201	7,264	15,772	14,388
Product design and development	7,196	6,737	14,358	14,269
Operating Expenses, Total	27,879	26,655	54,407	52,867
Operating income	4,385	6,659	10,045	16,208
Interest (expense) income, net	(59)	(18)	78	(6)
Other (expense) income, net	(952)	(837)	(1,820)	(1,464)
Income before income taxes	3,374	5,804	8,303	14,738
Depreciation and amortization	3,737	4,227	7,789	8,564
Corporate, Non-Segment [Member]
Depreciation and amortization	669	655	1,379	1,343
Commercial [Member]
Net sales	34,463	30,356	67,244	64,862
Commercial [Member] \| Operating Segments [Member]
Net sales	34,463	30,356	67,244	64,862
Gross profit	7,445	8,578	14,623	16,320
Depreciation and amortization	601	721	1,303	1,493
Live Events [Member]
Net sales	59,396	37,822	111,783	89,296
Live Events [Member] \| Operating Segments [Member]
Net sales	59,396	37,822	111,783	89,296
Gross profit	5,585	7,300	14,167	16,654
Depreciation and amortization	1,248	1,424	2,585	2,875
High School Park and Recreation [Member]
Net sales	32,747	27,578	60,641	56,521
High School Park and Recreation [Member] \| Operating Segments [Member]
Net sales	32,747	27,578	60,641	56,521
Gross profit	10,749	8,497	20,258	18,973
Depreciation and amortization	340	492	778	988
Transportation [Member]
Net sales	14,053	15,323	26,611	29,821
Transportation [Member] \| Operating Segments [Member]
Net sales	14,053	15,323	26,611	29,821
Gross profit	4,404	5,312	8,155	10,455
Depreciation and amortization	127	234	266	471
International [Member]
Net sales	23,818	16,288	42,930	30,511
International [Member] \| Operating Segments [Member]
Net sales	23,818	16,288	42,930	30,511
Gross profit	4,081	3,627	7,249	6,673
Depreciation and amortization	$ 752	$ 701	$ 1,478	$ 1,394

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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