Daktronics (DAKT) 10-Q 27 Nov 19 2020 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Nov. 02, 2019	Nov. 25, 2019
Entity Information [Line Items]
Entity Registrant Name	DAKTRONICS INC /SD/
Entity Central Index Key	0000915779
Current Fiscal Year End Date	--05-02
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		45,147,549
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Nov. 2, 2019

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 29,265	$ 35,383
Restricted cash	59	359
Marketable securities	3,618	26,344
Accounts receivable, net	103,417	65,487
Inventories	79,237	78,832
Contract assets	34,395	33,704
Current maturities of long-term receivables	4,567	2,300
Prepaid expenses and other current assets	9,943	8,319
Income tax receivables	4,301	1,087
Property and equipment and other assets available for sale	1,860	1,858
Total current assets	270,662	253,673
Property and equipment, net	67,163	65,314
Long-term receivables, less current maturities	1,758	1,214
Goodwill	7,974	7,889
Intangibles, net	4,204	4,906
Investment in affiliates and other assets	15,458	5,052
Deferred income taxes	11,190	11,168
TOTAL ASSETS	378,409	349,216
CURRENT LIABILITIES:
Accounts payable	48,432	44,873
Contract liabilities	48,387	47,178
Accrued expenses	36,817	32,061
Warranty obligations	9,837	9,492
Income taxes payable	638	468
Total current liabilities	144,111	134,072
Long-term warranty obligations	16,148	14,978
Long-term contract liabilities	10,578	10,053
Other long-term obligations	8,295	1,339
Long-term income taxes payable	735	578
Deferred income taxes	531	533
Total long-term liabilities	36,287	27,481
SHAREHOLDERS' EQUITY:
Common Stock, no par value, authorized 115,000,000 shares; 45,722,110 and 45,317,267 shares issued at November 2, 2019 and April 27, 2019, respectively	59,276	57,699
Additional paid-in capital	43,546	42,561
Retained earnings	103,397	93,593
Treasury Stock, at cost, 573,775 and 303,957 shares at November 2, 2019 and April 27, 2019, respectively	(3,516)	(1,834)
Accumulated other comprehensive loss	(4,692)	(4,356)
TOTAL SHAREHOLDERS' EQUITY	198,011	187,663
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 378,409	$ 349,216

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Nov. 02, 2019	Apr. 27, 2019
SHAREHOLDERS' EQUITY:
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	115,000,000	115,000,000
Common stock, issued (in shares)	45,722,110	45,317,267
Treasury stock, at cost (in shares)	573,775	303,957

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018
Income Statement [Abstract]
Net sales	$ 174,911	$ 172,692	$ 355,167	$ 326,880
Cost of sales	134,824	129,935	269,575	245,876
Gross profit	40,087	42,757	85,592	81,004
Operating expenses:
Selling	16,177	16,125	34,474	32,503
General and administrative	8,965	8,574	18,058	17,111
Product design and development	10,121	9,039	20,621	18,331
Total operating expenses	35,263	33,738	73,153	67,945
Operating income	4,824	9,019	12,439	13,059
Nonoperating (expense) income:
Interest income	162	188	431	385
Interest expense	(31)	(2)	(66)	(41)
Other income (expense), net	(514)	(66)	(321)	(220)
Income before income taxes	4,441	9,139	12,483	13,183
Income tax (benefit) expense	(2,833)	533	(1,821)	3
Net income	$ 7,274	$ 8,606	$ 14,304	$ 13,180
Weighted average shares outstanding:
Basic (in shares)	45,115	44,780	45,114	44,717
Diluted (in shares)	45,267	44,950	45,361	44,994
Earnings per share:
Basic (in dollars per share)	$ 0.16	$ 0.19	$ 0.32	$ 0.29
Diluted (in dollars per share)	$ 0.16	$ 0.19	$ 0.32	$ 0.29

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 7,274	$ 8,606	$ 14,304	$ 13,180
Other comprehensive income (loss):
Cumulative translation adjustments	146	(555)	(380)	(1,694)
Unrealized gain (loss) on available-for-sale securities, net of tax	3	6	44	(7)
Total other comprehensive income (loss), net of tax	149	(549)	(336)	(1,701)
Comprehensive income	$ 7,423	$ 8,057	$ 13,968	$ 11,479

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Balance at Beginning of Period at Apr. 28, 2018	$ 197,616	$ 54,731	$ 40,328	$ 107,105	$ (1,834)	$ (2,714)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,574			4,574
Cumulative translation adjustments	(1,139)					(1,139)
Unrealized gain (loss) on available-for-sale securities, net of tax	(13)					(13)
Share-based compensation	651		651
Exercise of stock options	57	57	0
Employee savings plan activity	820	820
Dividends paid	(3,121)			(3,121)
Balance at End of Period at Jul. 28, 2018	199,445	55,608	40,979	108,558	(1,834)	(3,866)
Balance at Beginning of Period at Apr. 28, 2018	197,616	54,731	40,328	107,105	(1,834)	(2,714)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,180
Cumulative translation adjustments	(1,694)
Unrealized gain (loss) on available-for-sale securities, net of tax	(7)
Balance at End of Period at Oct. 27, 2018	204,737	55,608	41,345	114,033	(1,834)	(4,415)
Balance at Beginning of Period at Jul. 28, 2018	199,445	55,608	40,979	108,558	(1,834)	(3,866)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,606			8,606
Cumulative translation adjustments	(555)					(555)
Unrealized gain (loss) on available-for-sale securities, net of tax	6					6
Share-based compensation	612		612
Tax payments related to RSU issuances	(246)		(246)
Dividends paid	(3,131)			(3,131)
Balance at End of Period at Oct. 27, 2018	204,737	55,608	41,345	114,033	(1,834)	(4,415)
Balance at Beginning of Period at Apr. 27, 2019	187,663	57,699	42,561	93,593	(1,834)	(4,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,030			7,030
Cumulative translation adjustments	(526)					(526)
Unrealized gain (loss) on available-for-sale securities, net of tax	41					41
Share-based compensation	643		643
Employee savings plan activity	779	779
Dividends paid	(2,250)			(2,250)
Treasury stock purchase	1,187				1,187
Balance at End of Period at Aug. 03, 2019	192,193	58,478	43,204	98,373	(3,021)	(4,841)
Balance at Beginning of Period at Apr. 27, 2019	187,663	57,699	42,561	93,593	(1,834)	(4,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,304
Cumulative translation adjustments	(380)
Unrealized gain (loss) on available-for-sale securities, net of tax	44
Balance at End of Period at Nov. 02, 2019	198,011	59,276	43,546	103,397	(3,516)	(4,692)
Balance at Beginning of Period at Aug. 03, 2019	192,193	58,478	43,204	98,373	(3,021)	(4,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,274			7,274
Cumulative translation adjustments	146					146
Unrealized gain (loss) on available-for-sale securities, net of tax	3					3
Share-based compensation	541		541
Tax payments related to RSU issuances	(199)		(199)
Employee savings plan activity	798	798
Dividends paid	(2,250)			(2,250)
Treasury stock purchase	495				495
Balance at End of Period at Nov. 02, 2019	$ 198,011	$ 59,276	$ 43,546	$ 103,397	$ (3,516)	$ (4,692)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Nov. 02, 2019	Aug. 03, 2019	Oct. 27, 2018	Jul. 28, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share	$ 0.05	$ 0.05	$ 0.07	$ 0.07

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 14,304	$ 13,180
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,724	9,300
Gain (loss) on sale of property, equipment and other assets	30	(93)
Share-based compensation	1,184	1,263
Contingent consideration adjustment	0	(956)
Equity in loss of affiliate	241	265
Provision for doubtful accounts	(535)	51
Deferred income taxes, net	(64)	(85)
Change in operating assets and liabilities	(34,156)	(368)
Net cash (used in) provided by operating activities	(10,272)	22,557
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(9,768)	(9,833)
Proceeds from sales of property, equipment and other assets	149	182
Purchases of marketable securities	0	(9,209)
Proceeds from sales or maturities of marketable securities	22,775	12,034
Purchases of and loans to equity investment	(896)	(854)
Acquisitions, net of cash acquired	0	2,250
Net cash provided by (used in) investing activities	12,260	(9,930)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on long-term obligations	(1,931)	(431)
Dividends paid	(4,500)	(6,252)
Proceeds from exercise of stock options	0	57
Payments for common shares repurchased	1,682	0
Tax payments related to RSU issuances	199	246
Net cash used in financing activities	(8,312)	(6,872)
EFFECT OF EXCHANGE RATE CHANGES	(94)	73
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(6,418)	5,828
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	35,742	29,755
End of period	29,324	35,583
Cash payments for:
Interest	117	84
Income taxes, net of refunds	1,051	954
Supplemental schedule of non-cash investing and financing activities:
Demonstration equipment transferred to inventory	0	97
Purchases of property and equipment included in accounts payable	1,469	2,348
Contributions of common stock under the ESPP	$ 1,577	$ 820

Basis of Presentation

Basis of Presentation	6 Months Ended
	Nov. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Critical Accounting Policies	Note 1. Basis of Presentation Daktronics, Inc. and its subsidiaries (the “Company”, “Daktronics”, “we”, “our”, or “us”) are the world's industry leader in designing and manufacturing electronic scoreboards, programmable display systems and large screen video displays for sporting, commercial and transportation applications. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary to fairly present our financial position, results of operations and cash flows for the periods presented. The preparation of financial statements in conformity with generally accepted accounting principles in the United States ("GAAP") requires management to make estimates and assumptions affecting the reported amounts therein. Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted. The balance sheet at April 27, 2019 , has been derived from the audited financial statements at that date, but it does not include all the information and footnotes required by GAAP for complete financial statements. These financial statements should be read in conjunction with our financial statements and notes thereto for the year ended April 27, 2019 , which are contained in our Annual Report on Form 10-K previously filed with the Securities and Exchange Commission ("SEC"). The results of operations for the interim periods presented are not necessarily indicative of results that may be expected for any other interim period or for the full fiscal year. Daktronics, Inc. operates on a 52- or 53-week fiscal year, with our fiscal year ending on the Saturday closest to April 30 of each year. When April 30 falls on a Wednesday, the fiscal year ends on the preceding Saturday. Within each fiscal year, each quarter is comprised of 13-week periods following the beginning of each fiscal year. In each 53-week year, an additional week is added to the first quarter, and each of the last three quarters is comprised of a 13-week period. The fiscal year ended April 27, 2019 consisted of 52 weeks. Fiscal 2020 will be a 53-week year; therefore, the six months ended November 2, 2019 contains operating results for 27 weeks while the six months ended October 27, 2018 contains operating results for 26 weeks. The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the totals of the same amounts shown in the condensed consolidated statement of cash flows: November 2, October 27, Cash and cash equivalents $ 29,265 $ 35,557 Restricted cash 59 26 Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows $ 29,324 $ 35,583 Recent Accounting Pronouncements There have been no material changes to our significant accounting policies and estimates as described in our Annual Report on Form 10-K for the fiscal year ended April 27, 2019 , other than described in the Accounting Standards Adopted section below. Accounting Standards Adopted In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (that is, lessees and lessors). ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term greater than 12 months regardless of their classification. ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842 (Leases) and ASU 2018-11, Leases (Topic 842), Targeted Improvements , which provide (i) narrow amendments to clarify how to apply certain aspects of the new lease standard, (ii) entities with an additional transition method to adopt the new standard, and (iii) lessors with a practical expedient for separating components of a contract. We adopted ASU 2016-02 and its related guidance during the first quarter of fiscal 2020 for all agreements existing as of April 28, 2019. We elected the "comparatives under Accounting Standards Codification ("ASC") 840 option" as a transitional method, which allows us to initially apply the new lease requirements at the effective date. Comparative periods were not adjusted and will continue to be reported in accordance with prior lease guidance under ASC 840. We elected the package of practical expedients, which permits us not to reassess our prior conclusions about lease identification, lease classification and initial direct costs. In addition, we have elected the short-term lease recognition whereby we will not recognize operating leases related assets or liabilities for leases with a lease term of less than one year. We have also elected the practical expedient to not separate lease and non-lease components in the lease payments for all asset classes. This adoption did not have an impact on our condensed consolidated statements of operations, shareholders' equity and cash flows, and there was no adjustment to retained earnings. As of April 28, 2019, we recognized a right of use asset for operating leases of $11,101 and a current and non-current lease liability for operating leases of $2,745 and $8,356 , respectively. The right of use operating assets are included in the " Investment in affiliates and other assets " line item, the current lease liabilities are included in the " Accrued expenses " line item, and the non-current lease liabilities are included in the " Other long-term obligations " line item in our condensed consolidated balance sheet. See " Note 12. Leases " for more information. Accounting Standards Not Yet Adopted In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), which simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The amendment requires an entity to perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for interim and annual periods beginning after December 15, 2019 and will require adoption on a prospective basis. We are currently evaluating the effect that adopting ASU 2017-04 will have on our condensed consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides guidance regarding the measurement and recognition of credit impairment for certain financial assets. ASU 2016-13 is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted, and will require adoption on a modified retrospective basis. We are currently evaluating the effect that adopting ASU 2016-13, including all subsequent amendments and improvements to ASC Topic 326 issued by FASB, will have on our condensed consolidated financial statements and related disclosures.

Investments in Affiliates Inves

Investments in Affiliates Investment in Affiliates	6 Months Ended
	Nov. 02, 2019
Equity and Cost Method Investments [Abstract]
Cost and Equity Method Investments Disclosure [Text Block]	Note 2. Investments in Affiliates Investments in affiliates over which we have significant influence are accounted for under the equity method of accounting in accordance with the provisions of ASC 323, Investments – Equity Method and Joint Ventures . Investments in affiliates over which we do not have the ability to exert significant influence over the affiliate's operating and financing activities are accounted for under the cost method of accounting in accordance with the provisions of ASC 321, Investments – Equity Securities . We have evaluated our relationships with our affiliates and have determined that these entities are not variable interest entities. The aggregate amount of investments accounted for under the equity method was $3,415 and $3,657 at November 2, 2019 and April 27, 2019 , respectively. The equity method requires us to report our share of losses up to our equity investment amount. Cash paid for investments in affiliates and loans to affiliates are included in the "Purchases of and loans to equity investment" line item in our condensed consolidated statements of cash flows. Our proportional share of the respective affiliates' earnings or losses is included in the " Other income (expense), net " line item in our condensed consolidated statements of operations. For the six months ended November 2, 2019 and October 27, 2018 , our share of the losses of our affiliates was $241 and $265 , respectively. The aggregate amount of investments without readily determinable fair values was $ 42 at November 2, 2019 and April 27, 2019 . There have not been any identified events or changes in circumstances that may have a significant adverse effect on their fair value, and it is not practical to estimate their fair value. We record equity investments without readily determinable fair values at cost, less any impairment, adjusted for observable price changes. During the six months ended November 2, 2019 , we did not record any changes in the measurement of such investments.

Earnings Per Share EPS

Earnings Per Share EPS	6 Months Ended
	Nov. 02, 2019
Earnings Per Share [Abstract]
Earnings Per Share EPS	Note 3. Earnings Per Share ("EPS") We follow the provisions of ASC 260, Earnings Per Share , where basic EPS is computed by dividing income attributable to common shareholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution which may occur if securities or other obligations to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock which share in our earnings. The following is a reconciliation of the net income and common share amounts used in the calculation of basic and diluted EPS for the three and six months ended November 2, 2019 and October 27, 2018 : Net income Shares Per share income For the three months ended November 2, 2019 Basic earnings per share $ 7,274 45,115 $ 0.16 Dilution associated with stock compensation plans — 152 — Diluted earnings per share $ 7,274 45,267 $ 0.16 For the three months ended October 27, 2018 Basic earnings per share $ 8,606 44,780 $ 0.19 Dilution associated with stock compensation plans — 170 — Diluted earnings per share $ 8,606 44,950 $ 0.19 For the six months ended November 2, 2019 Basic earnings per share $ 14,304 45,114 $ 0.32 Dilution associated with stock compensation plans — 247 — Diluted earnings per share $ 14,304 45,361 $ 0.32 For the six months ended October 27, 2018 Basic earnings per share $ 13,180 44,717 $ 0.29 Dilution associated with stock compensation plans — 277 — Diluted earnings per share $ 13,180 44,994 $ 0.29 Options outstanding to purchase 2,282 shares of common stock with a weighted average exercise price of $9.90 for the three months ended November 2, 2019 and 2,377 shares of common stock with a weighted average exercise price of $9.94 for the three months ended October 27, 2018 were not included in the computation of diluted earnings per share because the effects would be anti-dilutive. Options outstanding to purchase 2,238 shares of common stock with a weighted average exercise price of $9.97 for the six months ended November 2, 2019 and 2,129 shares of common stock with a weighted average exercise price of $10.15 for the six months ended October 27, 2018 were not included in the computation of diluted earnings per share because the effects would be anti-dilutive.

Revenue Recognition Revenue Rec

Revenue Recognition Revenue Recognition	6 Months Ended
	Nov. 02, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Note 4. Revenue Recognition Disaggregation of revenue In accordance with ASC 606-10-50, we disaggregate revenue from contracts with customers by the type of performance obligation and the timing of revenue recognition. We determine that disaggregating revenue in these categories achieves the disclosure objective to depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors and to enable users of financial statements to understand the relationship to each reportable segment. The following table presents our disaggregation of revenue by segments: Three Months Ended November 2, 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 9,007 $ 41,413 $ 5,186 $ 12,419 $ 10,542 $ 78,567 Limited configuration 26,654 11,513 24,127 7,383 13,124 82,801 Service and other 3,990 6,393 880 528 1,752 13,543 $ 39,651 $ 59,319 $ 30,193 $ 20,330 $ 25,418 $ 174,911 Timing of revenue recognition Goods/services transferred at a point in time $ 27,304 $ 13,169 $ 22,112 $ 7,521 $ 13,500 $ 83,606 Goods/services transferred over time 12,347 46,150 8,081 12,809 11,918 91,305 $ 39,651 $ 59,319 $ 30,193 $ 20,330 $ 25,418 $ 174,911 Six Months Ended November 2, 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 21,972 $ 87,000 $ 11,216 $ 24,316 $ 26,220 $ 170,724 Limited configuration 53,889 19,226 47,927 13,970 23,054 158,066 Service and other 7,825 12,399 1,515 1,062 3,576 26,377 $ 83,686 $ 118,625 $ 60,658 $ 39,348 $ 52,850 $ 355,167 Timing of revenue recognition Goods/services transferred at a point in time $ 55,007 $ 22,289 $ 44,711 $ 14,218 $ 23,688 $ 159,913 Goods/services transferred over time 28,679 96,336 15,947 25,130 29,162 195,254 $ 83,686 $ 118,625 $ 60,658 $ 39,348 $ 52,850 $ 355,167 Three Months Ended October 27, 2018 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 11,426 $ 38,283 $ 6,671 $ 10,427 $ 10,776 $ 77,583 Limited configuration 31,385 11,467 24,381 7,195 9,851 84,279 Service and other 3,258 5,349 528 455 1,240 10,830 $ 46,069 $ 55,099 $ 31,580 $ 18,077 $ 21,867 $ 172,692 Timing of revenue recognition Goods/services transferred at a point in time $ 31,896 $ 12,558 $ 22,060 $ 7,267 $ 10,126 $ 83,907 Goods/services transferred over time 14,173 42,541 9,520 10,810 11,741 88,785 $ 46,069 $ 55,099 $ 31,580 $ 18,077 $ 21,867 $ 172,692 Six Months Ended October 27, 2018 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 14,475 $ 77,204 $ 15,614 $ 20,045 $ 26,992 $ 154,330 Limited configuration 55,252 17,285 42,928 14,278 20,629 150,372 Service and other 6,911 10,082 1,158 911 3,116 22,178 $ 76,638 $ 104,571 $ 59,700 $ 35,234 $ 50,737 $ 326,880 Timing of revenue recognition Goods/services transferred at a point in time $ 56,479 $ 19,360 $ 39,058 $ 14,499 $ 21,662 $ 151,058 Goods/services transferred over time 20,159 85,211 20,642 20,735 29,075 175,822 $ 76,638 $ 104,571 $ 59,700 $ 35,234 $ 50,737 $ 326,880 See " Note 5. Segment Reporting " for a disaggregation of revenue by geography. Contract balances Contract assets represent revenue recognized in excess of amounts billed and include unbilled receivables. Unbilled receivables, which represent an unconditional right to payment subject only to the passage of time, are reclassified to accounts receivable when they are billed according to the contract terms. Contract liabilities represent amounts billed to the clients in excess of revenue recognized to date. The following table reflects the changes in our contract assets and liabilities: November 2, 2019 April 27, 2019 Dollar Change Percent Change Contract assets $ 34,395 $ 33,704 $ 691 2.1 % Contract liabilities - current 48,387 47,178 1,209 2.6 Contract liabilities - noncurrent 10,578 10,053 525 5.2 The changes in our contract assets and contract liabilities from April 27, 2019 to November 2, 2019 were due to the timing of billing schedules and revenue recognition, which can vary significantly depending on the contractual payment terms and the seasonality of the sports markets. We had no material impairments of contract assets for the six months ended November 2, 2019 . As of April 27, 2019 , we had six contracts in progress that were identified as loss contracts, for which we recorded a provision for losses of $2,353 and two remaining contracts with loss estimates of $360 as of November 2, 2019 . These were included in the "Accrued expenses" line item in our condensed consolidated balance sheets. During the six months ended November 2, 2019 , we recognized revenue of $39,352 related to our contract liabilities as of April 27, 2019 . Remaining performance obligations As of November 2, 2019 , the aggregate amount of the transaction price allocated to the remaining performance obligations was $239,902 . We expect approximately $202,745 of our remaining performance obligations to be recognized over the next 12 months with the remainder recognized thereafter. Remaining performance obligations related to product and service agreements are $182,050 and $57,852 , respectively. Although remaining performance obligations reflect business that is considered to be legally binding, cancellations, deferrals or scope adjustments may occur. Any known project cancellations, revisions to project scope and cost, foreign currency exchange fluctuations and project deferrals are reflected or excluded in the remaining performance obligation balance, as appropriate.

Segment Disclosure

Segment Disclosure	6 Months Ended
	Nov. 02, 2019
Segment Reporting [Abstract]
Segment Disclosure	Note 5. Segment Reporting We organize and manage our business by the following five segments which meet the definition of reportable segments under ASC 280-10, Segment Reporting : Commercial, Live Events, High School Park and Recreation, Transportation, and International. These segments are based on the customer type or geography and are the same as our business units. We evaluate segment performance based on operating results through contribution margin, which is comprised of gross profit less selling expense. We exclude general and administration expense, product design and development expense, non-operating income and expense, and income tax expense in the segment analysis. Separate financial information is available and regularly evaluated by our chief operating decision-maker (CODM), who is our president and chief executive officer, in making resource allocation decisions for our segments. The following table sets forth certain financial information for each of our five reporting segments for the periods indicated: Three Months Ended Six Months Ended November 2, October 27, November 2, October 27, Net sales: Commercial $ 39,651 $ 46,069 $ 83,686 $ 76,638 Live Events 59,319 55,099 118,625 104,571 High School Park and Recreation 30,193 31,580 60,658 59,700 Transportation 20,330 18,077 39,348 35,234 International 25,418 21,867 52,850 50,737 174,911 172,692 355,167 326,880 Gross profit: Commercial 7,862 11,757 17,080 18,651 Live Events 11,934 12,312 24,671 22,545 High School Park and Recreation 9,224 9,759 19,411 19,261 Transportation 7,003 6,140 13,757 11,591 International 4,064 2,789 10,673 8,956 40,087 42,757 85,592 81,004 Contribution margin: (1) Commercial 2,853 7,050 6,937 9,524 Live Events 8,362 8,918 17,234 15,903 High School Park and Recreation 5,988 6,706 12,580 13,258 Transportation 5,895 4,991 11,347 9,286 International 812 (1,033 ) 3,020 530 23,910 26,632 51,118 48,501 Non-allocated operating expenses: General and administrative 8,965 8,574 18,058 17,111 Product design and development 10,121 9,039 20,621 18,331 Operating income 4,824 9,019 12,439 13,059 Nonoperating income (expense): Interest income 162 188 431 385 Interest expense (31 ) (2 ) (66 ) (41 ) Other income (expense), net (514 ) (66 ) (321 ) (220 ) Income before income taxes 4,441 9,139 12,483 13,183 Income tax (benefit) expense (2,833 ) 533 (1,821 ) 3 Net income $ 7,274 $ 8,606 $ 14,304 $ 13,180 Depreciation and amortization: Commercial $ 895 $ 1,236 $ 1,869 $ 2,414 Live Events 1,394 1,334 2,792 2,506 High School Park and Recreation 507 517 1,019 960 Transportation 252 277 516 551 International 563 723 1,087 1,423 Unallocated corporate depreciation 730 725 1,441 1,446 $ 4,341 $ 4,812 $ 8,724 $ 9,300 (1) Contribution margin consists of gross profit less selling expense. No single geographic area comprises a material amount of our net sales or property and equipment, net of accumulated depreciation, other than the United States. The following table presents information about net sales and property and equipment, net of accumulated depreciation, in the United States and elsewhere: Three Months Ended Six Months Ended November 2, October 27, November 2, October 27, Net sales: United States $ 147,106 $ 145,936 $ 296,566 $ 267,261 Outside United States 27,805 26,756 58,601 59,619 $ 174,911 $ 172,692 $ 355,167 $ 326,880 November 2, April 27, Property and equipment, net of accumulated depreciation: United States $ 59,655 $ 59,192 Outside United States 7,508 6,122 $ 67,163 $ 65,314 We have numerous customers worldwide for sales of our products and services, and no customer accounted for 10% or more of net sales; therefore, we are not economically dependent on a limited number of customers for the sale of our products and services. We have numerous raw material and component suppliers, and no supplier accounts for 10% or more of our cost of sales; however, we have a number of single-source suppliers that could limit our supply or cause delays in obtaining raw material and components needed in manufacturing.

Marketable Securities

Marketable Securities	6 Months Ended
	Nov. 02, 2019
Marketable Securities [Abstract]
Marketable Securities	Note 6. Marketable Securities We have a cash management program which provides for the investment of cash balances not used in current operations. We classify our investments in marketable securities as available-for-sale in accordance with the provisions of ASC 320, Investments – Debt and Equity Securities. Marketable securities classified as available-for-sale are reported at fair value with unrealized gains or losses, net of tax, reported in accumulated other comprehensive loss in the condensed consolidated balance sheets. As it relates to fixed income marketable securities, it is not likely we will be required to sell any of these investments before recovery of the entire amortized cost basis. In addition, as of November 2, 2019 , we anticipate we will recover the entire amortized cost basis of such fixed income securities, and we have determined no other-than-temporary impairments associated with credit losses were required to be recognized. The cost of securities sold is based on the specific identification method. Where quoted market prices are not available, we use the market price of similar types of securities traded in the market to estimate fair value. As of November 2, 2019 and April 27, 2019 , our available-for-sale securities consisted of the following: Amortized Cost Unrealized Losses Fair Value Balance as of November 2, 2019 Certificates of deposit $ 2,717 $ — $ 2,717 U.S. Government sponsored entities 745 — 745 Municipal bonds 156 — 156 $ 3,618 $ — $ 3,618 Balance as of April 27, 2019 Certificates of deposit $ 3,464 $ — $ 3,464 U.S. Government securities 10,779 (5 ) 10,774 U.S. Government sponsored entities 10,510 (28 ) 10,482 Municipal bonds 1,626 (2 ) 1,624 $ 26,379 $ (35 ) $ 26,344 Realized gains or losses on investments are recorded in our condensed consolidated statements of operations as " Other income (expense), net ." Upon the sale of a security classified as available-for-sale, the security’s specific unrealized gain (loss) is reclassified out of accumulated other comprehensive loss into earnings based on the specific identification method. In the six months ended November 2, 2019 and October 27, 2018 , the reclassifications from accumulated other comprehensive loss to net earnings were immaterial. All available-for-sale securities are classified as current assets, as they are readily available to support our current operating needs. The contractual maturities of available-for-sale debt securities as of November 2, 2019 were as follows: Less than 12 months 1-5 Years Total Certificates of deposit $ 1,734 $ 983 $ 2,717 U.S. Government sponsored entities 745 — 745 Municipal bonds 156 — 156 $ 2,635 $ 983 $ 3,618

Business Combination

Business Combination	6 Months Ended
	Nov. 02, 2019
Business Combinations [Abstract]
Business Combination	Note 7. Business Combinations AJT Systems, Inc. Acquisition We acquired the net assets of AJT Systems, Inc. ("AJT"), a Florida-based company, on June 21, 2018. The results of its operations have been included in our condensed consolidated financial statements since the date of acquisition. We have not made pro forma disclosures about our acquisition of AJT because the results of its operations are not material to our condensed consolidated financial statements. AJT is a developer of real-time live to air graphics rendering and video server systems for the broadcast TV industry. This acquisition will allow our organization to grow and strengthen our solution offerings to the market. This acquisition was primarily funded with cash on hand and with payments made over a three-year period.

Goodwill

Goodwill	6 Months Ended
	Nov. 02, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Note 8. Goodwill The changes in the carrying amount of goodwill related to each reportable segment for the six months ended November 2, 2019 were as follows: Live Events Commercial Transportation International Total Balance as of April 27, 2019 $ 2,276 $ 3,218 $ 49 $ 2,346 $ 7,889 Foreign currency translation 9 64 9 3 85 Balance as of November 2, 2019 $ 2,285 $ 3,282 $ 58 $ 2,349 $ 7,974 We perform an analysis of goodwill on an annual basis, and it is tested for impairment more frequently if events or changes in circumstances indicate that an asset might be impaired. We perform our annual analysis during our third quarter of each fiscal year, based on the goodwill amount as of the first business day of our third fiscal quarter. In conducting our impairment testing, we compare the fair value of each of our business units to the related carrying value of the allocated assets. We utilize the income approach based on discounted projected cash flows to estimate the fair value of each unit. The projected cash flows use many estimates including market conditions and expected market demand; our ability to grow or maintain market share and gross profit; and our expected expenditures for capital and operating expenses. Assets shared or not directly attributed to a reportable segment's activities are allocated to the reportable segment based on sales and other measures. We performed our annual impairment test for our third quarter in fiscal 2019, which began on October 29, 2018 and concluded no goodwill impairment existed. We are currently in the process of completing our annual analysis as of the first business day of our third quarter of fiscal 2020, which began on November 4, 2019.

Selected Financial Statement Da

Selected Financial Statement Data	6 Months Ended
	Nov. 02, 2019
Selected Financial Statement Data [Abstract]
Selected Financial Statement Data	Note 9. Selected Financial Statement Data Inventories consisted of the following: November 2, April 27, Raw materials $ 33,203 $ 30,789 Work-in-process 9,104 8,239 Finished goods 36,930 39,804 $ 79,237 $ 78,832 Property and equipment, net consisted of the following: November 2, April 27, Land $ 2,176 $ 1,738 Buildings 67,561 66,403 Machinery and equipment 99,811 96,486 Office furniture and equipment 6,157 6,195 Computer software and hardware 52,735 55,460 Equipment held for rental 287 287 Demonstration equipment 7,547 7,422 Transportation equipment 7,993 7,715 244,267 241,706 Less accumulated depreciation 177,104 176,392 $ 67,163 $ 65,314

Receivables

Receivables	6 Months Ended
	Nov. 02, 2019
Receivables [Abstract]
Receivables	Note 10. Receivables We invoice customers based on a billing schedule as established in our contracts. We sometimes have the ability to file a contractor’s lien against the product installed as collateral and to file claims against surety bonds to protect our interest in receivables. Foreign sales are at times secured by irrevocable letters of credit or bank guarantees. Accounts receivable are reported net of an allowance for doubtful accounts of $2,516 and $2,208 at November 2, 2019 and April 27, 2019 , respectively. Included in accounts receivable as of November 2, 2019 and April 27, 2019 was $717 and $440 , respectively, of retainage on construction-type contracts, all of which is expected to be collected within one year. In some contracts with customers, we agree to installment payments exceeding 12 months. The present value of these contracts and leases are recorded as a receivable as the revenue is recognized in accordance with GAAP, and profit is recognized to the extent the present value is in excess of cost. We generally retain a security interest in the equipment or in the cash flow generated by the equipment until the contract is paid. The present value of long-term contracts and lease receivables, including accrued interest and current maturities, was $6,325 and $3,514 as of November 2, 2019 and April 27, 2019 , respectively. Contract and lease receivables bearing annual interest rates of 5.0 to 9.0 percent are due in varying annual installments through 2024 . The face value of long-term receivables was $5,234 as of November 2, 2019 and $3,271 as of April 27, 2019 .

Share Repurchase Program Share

Share Repurchase Program Share Repurchase Program	6 Months Ended
	Nov. 02, 2019
Class of Stock Disclosures [Abstract]
Treasury Stock [Text Block]	Note 11. Share Repurchase Program On June 17, 2016, our Board of Directors approved a stock repurchase program under which we may purchase up to $40,000 of the Company's outstanding shares of common stock. Under this program, we may repurchase shares from time to time in open market transactions and in privately negotiated transactions based on business, market, applicable legal requirements and other considerations. The repurchase program does not require the repurchase of a specific number of shares and may be terminated at any time. During the six months ended October 27, 2018 , we had no repurchases of shares of our outstanding common stock. During the six months ended November 2, 2019 , we repurchased 270 shares of common stock at a total cost of $1,682 . As of November 2, 2019 , we had $36,493 of remaining capacity under our current share repurchase program.

Leases Leases

Leases Leases	6 Months Ended
	Nov. 02, 2019
Leases [Abstract]
Leases	Note 12. Leases We lease facilities and various equipment to manufacture products and provide employee collaboration space and tools. These are all classified as operating leases and have initial lease terms ranging from one to five years. These operating leases do not contain material residual value guarantees or material restrictive covenants. Our lease in Sioux Falls, SD has a purchase option. We do not have any financing leases. We determine if an arrangement is a lease at inception. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Right-of-use assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As our leases do not provide an implicit rate, we use the incremental borrowing rate based on the information available at commencement date in determining the present value of future lease payments. The operating lease right-of-use asset includes any prepaid lease payments and initial direct costs and excludes any lease incentives and impairments. Some of our leases include options to extend the term, which is only included in the right-of-use assets and lease liability calculation when it is reasonably certain that we will exercise that option. We have lease agreements with lease and non-lease components, and we have elected to account for all asset classes as a single lease component. Our operating leases also typically require payment of real estate taxes, insurance, and common area maintenance. These components comprise the majority of our variable lease cost and are excluded from the present value of our lease obligations. In instances where they are fixed, they are included due to our election to combine lease and non-lease components. Our total variable lease costs are immaterial. Operating lease cost is recognized on a straight-line basis over the lease term, and short-term lease cost is recognized when paid. Both are recognized in cost of sales and operating expenses in the condensed consolidated statements of operations. The lease cost was as follows: Three Months Ended November 2, 2019 Six Months Ended November 2, 2019 Operating lease cost (1) $ 1,010 $ 1,862 (1) Includes short-term leases, which are immaterial. The weighted average remaining lease term and discount rate related to operating leases include: November 2, 2019 Weighted average remaining lease term 5.3 years Weighted average discount rate 3.5 % Supplemental unaudited cash flow information related to operating leases include: Three Months Ended November 2, 2019 Six Months Ended November 2, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 787 $ 1,603 Future minimum operating lease payments as of, and subsequent to, November 2, 2019 under ASC 842 are as follows: Operating Leases (1) Fiscal years ending 2020 $ 1,536 2021 2,711 2022 1,993 2023 1,206 2024 1,085 Thereafter 2,398 Total lease payments 10,929 Less imputed interest (944 ) Total lease liabilities $ 9,985 (1) Includes $3,879 to extend the term of our Sioux Falls, South Dakota manufacturing facility.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Nov. 02, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 13. Commitments and Contingencies Litigation: We are a party to legal proceedings and claims which arise during the ordinary course of business. As of April 27, 2019 and November 2, 2019 , $1,072 and $1,981 , respectively, were included in the "Accrued expenses" line item in our condensed consolidated balance sheets for a probable and reasonably estimated cost to settle a patent litigation claim. The costs are included in cost of sales in the High School Park and Recreation business unit. For other unresolved legal proceedings or claims, we do not believe there is a reasonable probability that any material loss will be incurred. Accordingly, no material accrual or disclosure of a potential range of loss has been made related to these matters. We do not expect the ultimate liability of these unresolved legal proceedings or claims to have a material effect on our financial position, liquidity or capital resources. Warranties: Changes in our warranty obligation for the six months ended November 2, 2019 consisted of the following: November 2, 2019 Beginning accrued warranty obligations $ 24,470 Warranties issued during the period 6,425 Settlements made during the period (5,355 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations 445 Ending accrued warranty obligations $ 25,985 Performance guarantees: We have entered into standby letters of credit and surety bonds with financial institutions relating to the guarantee of our future performance on contracts, primarily construction-type contracts. As of November 2, 2019 , we had outstanding letters of credit and surety bonds in the amount of $15,184 and $8,372 , respectively. Performance guarantees are issued to certain customers to guarantee the operation and installation of the equipment and our ability to complete a contract. These performance guarantees have various terms but are generally one year. We enter into written agreements with our customers, and those agreements often contain indemnification provisions that require us to make the customer whole if certain acts or omissions by us cause the customer financial loss. We make efforts to negotiate reasonable caps and limitations on the recovery of such damages. As of November 2, 2019 , we were not aware of any indemnification claim from a customer. Purchase commitments: From time to time, we commit to purchase inventory, advertising, cloud-based information systems, information technology maintenance and support services, and various other products and services over periods that extend beyond one year. As of November 2, 2019 , we were obligated under the following unconditional purchase commitments: Fiscal years ending Amount 2020 $ 3,161 2021 4,644 2022 2,692 2023 1,820 2024 113 Thereafter 153 $ 12,583

Income Taxes

Income Taxes	6 Months Ended
	Nov. 02, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 14. Income Taxes We calculate the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full fiscal year to “ordinary” income or loss (pre-tax income or loss excluding unusual or infrequently occurring discrete items) for the reporting period. Due to various factors and operating in multiple state and foreign jurisdictions, our effective tax rate is subject to fluctuation. We recorded an effective tax rate benefit of 63.8 percent and 14.6 percent for the three and six months ended November 2, 2019 , respectively, and an effective tax rate expense of 5.8 percent and 0.0 percent for the three and six months ended October 27, 2018 . The changes in the effective tax rates are primarily driven by differences in estimated tax credits proportionate to estimated pre-tax book income for each period. We are subject to U.S. federal income tax as well as income taxes of multiple state and foreign jurisdictions. Fiscal years 2016, 2017, 2018 and 2019 remain open to federal tax examinations, and fiscal years 2015, 2016, 2017, 2018 and 2019 remain open for various state income tax examinations. Certain subsidiaries are also subject to income tax in several foreign jurisdictions which have open tax years varying by jurisdiction beginning in fiscal 2009. In the event of any future tax assessments, we have elected to record the income taxes and any related interest and penalties as income tax expense in our condensed consolidated statement of operations. As of November 2, 2019 , undistributed earnings of our foreign subsidiaries were considered to be reinvested indefinitely. Additionally, we had $735 of unrecognized tax benefits which would reduce our effective tax rate if recognized.

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Nov. 02, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurement	Note 15. Fair Value Measurement The following table sets forth by Level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis at November 2, 2019 and April 27, 2019 according to the valuation techniques we used to determine their fair values. There have been no transfers of assets or liabilities among the fair value hierarchies presented. Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of November 2, 2019 Cash and cash equivalents $ 29,265 $ — $ — $ 29,265 Restricted cash 59 — — 59 Available-for-sale securities: Certificates of deposit — 2,717 — 2,717 U.S. Government sponsored entities — 745 — 745 Municipal bonds — 156 — 156 Derivatives - asset position — 70 — 70 Derivatives - liability position — (233 ) — (233 ) Acquisition-related contingency consideration — — (895 ) (895 ) $ 29,324 $ 3,455 $ (895 ) $ 31,884 Balance as of April 27, 2019 Cash and cash equivalents $ 35,383 $ — $ — $ 35,383 Restricted cash 359 — — 359 Available-for-sale securities: Certificates of deposit — 3,464 — 3,464 U.S. Government securities 10,774 — — 10,774 U.S. Government sponsored entities — 10,482 — 10,482 Municipal bonds — 1,624 — 1,624 Derivatives - asset position — 91 — 91 Derivatives - liability position — (4 ) — (4 ) Acquisition-related contingency consideration — — (3,065 ) (3,065 ) $ 46,516 $ 15,657 $ (3,065 ) $ 59,108 A roll forward of the Level 3 contingent liabilities, both short- and long-term, for the six months ended November 2, 2019 is as follows: Acquisition-related contingency consideration as of April 27, 2019 $ 3,065 Additions 50 Settlements (2,291 ) Interest 34 Foreign currency translation 37 Acquisition-related contingency consideration as of November 2, 2019 $ 895 There have been no changes in the valuation techniques used by us to value our financial instruments since the end of fiscal 2019 . For additional information, see our Annual Report on Form 10-K for the fiscal year ended April 27, 2019 for the methods and assumptions used to estimate the fair value of each class of financial instrument.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Nov. 02, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 16. Derivative Financial Instruments We utilize derivative financial instruments to manage the economic impact of fluctuations in currency exchange rates on those transactions denominated in currencies other than our functional currency, which is the U.S. dollar. We enter into currency forward contracts to manage these economic risks. We account for all derivatives in the condensed consolidated balance sheets within accounts receivable or accounts payable measured at fair value, and changes in fair values are recognized in earnings unless specific hedge accounting criteria are met for cash flow or net investment hedges. As of November 2, 2019 and April 27, 2019 , we had not designated any of our derivative instruments as accounting hedges, and thus we recorded the changes in fair value in the " Other income (expense), net " line item in the condensed consolidated statements of operations. The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at November 2, 2019 and April 27, 2019 were as follows: November 2, 2019 April 27, 2019 U.S. Dollars Foreign U.S. Foreign Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 1,611 2,322 2,688 3,772 U.S. Dollars/Canadian Dollars 750 998 625 821 U.S. Dollars/British Pounds 5,874 4,585 3,547 2,680 U.S. Dollars/Euros 3,755 3,377 — — U.S. Dollars/Swiss Franc — — 927 925 U.S. Dollars/Malaysian Ringgit — — 60 246 As of November 2, 2019 , there was an asset and liability of $70 and $233 , respectively; and as of April 27, 2019 , there was an asset and liability of $91 and $4 , respectively, representing the fair value of foreign currency exchange forward contracts, which were determined using Level 2 inputs from a third-party bank. As of November 2, 2019 , all contracts mature within 16 months.

Subsequent Events (Notes)

Subsequent Events (Notes)	6 Months Ended
	Nov. 02, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 17. Subsequent Events On November 15, 2019, we entered into an amendment to extend the maturity date of our credit agreement and a related revolving bank note from November 15, 2019 to November 15, 2022 and to modify certain other terms and financial covenants.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Nov. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Pronouncements	Recent Accounting Pronouncements There have been no material changes to our significant accounting policies and estimates as described in our Annual Report on Form 10-K for the fiscal year ended April 27, 2019 , other than described in the Accounting Standards Adopted section below. Accounting Standards Adopted In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (that is, lessees and lessors). ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term greater than 12 months regardless of their classification. ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842 (Leases) and ASU 2018-11, Leases (Topic 842), Targeted Improvements , which provide (i) narrow amendments to clarify how to apply certain aspects of the new lease standard, (ii) entities with an additional transition method to adopt the new standard, and (iii) lessors with a practical expedient for separating components of a contract. We adopted ASU 2016-02 and its related guidance during the first quarter of fiscal 2020 for all agreements existing as of April 28, 2019. We elected the "comparatives under Accounting Standards Codification ("ASC") 840 option" as a transitional method, which allows us to initially apply the new lease requirements at the effective date. Comparative periods were not adjusted and will continue to be reported in accordance with prior lease guidance under ASC 840. We elected the package of practical expedients, which permits us not to reassess our prior conclusions about lease identification, lease classification and initial direct costs. In addition, we have elected the short-term lease recognition whereby we will not recognize operating leases related assets or liabilities for leases with a lease term of less than one year. We have also elected the practical expedient to not separate lease and non-lease components in the lease payments for all asset classes. This adoption did not have an impact on our condensed consolidated statements of operations, shareholders' equity and cash flows, and there was no adjustment to retained earnings. As of April 28, 2019, we recognized a right of use asset for operating leases of $11,101 and a current and non-current lease liability for operating leases of $2,745 and $8,356 , respectively. The right of use operating assets are included in the " Investment in affiliates and other assets " line item, the current lease liabilities are included in the " Accrued expenses " line item, and the non-current lease liabilities are included in the " Other long-term obligations " line item in our condensed consolidated balance sheet. See " Note 12. Leases " for more information. Accounting Standards Not Yet Adopted In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), which simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The amendment requires an entity to perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for interim and annual periods beginning after December 15, 2019 and will require adoption on a prospective basis. We are currently evaluating the effect that adopting ASU 2017-04 will have on our condensed consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides guidance regarding the measurement and recognition of credit impairment for certain financial assets. ASU 2016-13 is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted, and will require adoption on a modified retrospective basis. We are currently evaluating the effect that adopting ASU 2016-13, including all subsequent amendments and improvements to ASC Topic 326 issued by FASB, will have on our condensed consolidated financial statements and related disclosures.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Nov. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Cash and Cash Equivalents [Table Text Block]	The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the totals of the same amounts shown in the condensed consolidated statement of cash flows: November 2, October 27, Cash and cash equivalents $ 29,265 $ 35,557 Restricted cash 59 26 Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows $ 29,324 $ 35,583

Earnings Per Share EPS (Tables)

Earnings Per Share EPS (Tables)	6 Months Ended
	Nov. 02, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share Reconciliation	The following is a reconciliation of the net income and common share amounts used in the calculation of basic and diluted EPS for the three and six months ended November 2, 2019 and October 27, 2018 : Net income Shares Per share income For the three months ended November 2, 2019 Basic earnings per share $ 7,274 45,115 $ 0.16 Dilution associated with stock compensation plans — 152 — Diluted earnings per share $ 7,274 45,267 $ 0.16 For the three months ended October 27, 2018 Basic earnings per share $ 8,606 44,780 $ 0.19 Dilution associated with stock compensation plans — 170 — Diluted earnings per share $ 8,606 44,950 $ 0.19 For the six months ended November 2, 2019 Basic earnings per share $ 14,304 45,114 $ 0.32 Dilution associated with stock compensation plans — 247 — Diluted earnings per share $ 14,304 45,361 $ 0.32 For the six months ended October 27, 2018 Basic earnings per share $ 13,180 44,717 $ 0.29 Dilution associated with stock compensation plans — 277 — Diluted earnings per share $ 13,180 44,994 $ 0.29

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Nov. 02, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents our disaggregation of revenue by segments: Three Months Ended November 2, 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 9,007 $ 41,413 $ 5,186 $ 12,419 $ 10,542 $ 78,567 Limited configuration 26,654 11,513 24,127 7,383 13,124 82,801 Service and other 3,990 6,393 880 528 1,752 13,543 $ 39,651 $ 59,319 $ 30,193 $ 20,330 $ 25,418 $ 174,911 Timing of revenue recognition Goods/services transferred at a point in time $ 27,304 $ 13,169 $ 22,112 $ 7,521 $ 13,500 $ 83,606 Goods/services transferred over time 12,347 46,150 8,081 12,809 11,918 91,305 $ 39,651 $ 59,319 $ 30,193 $ 20,330 $ 25,418 $ 174,911 Six Months Ended November 2, 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 21,972 $ 87,000 $ 11,216 $ 24,316 $ 26,220 $ 170,724 Limited configuration 53,889 19,226 47,927 13,970 23,054 158,066 Service and other 7,825 12,399 1,515 1,062 3,576 26,377 $ 83,686 $ 118,625 $ 60,658 $ 39,348 $ 52,850 $ 355,167 Timing of revenue recognition Goods/services transferred at a point in time $ 55,007 $ 22,289 $ 44,711 $ 14,218 $ 23,688 $ 159,913 Goods/services transferred over time 28,679 96,336 15,947 25,130 29,162 195,254 $ 83,686 $ 118,625 $ 60,658 $ 39,348 $ 52,850 $ 355,167 Three Months Ended October 27, 2018 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 11,426 $ 38,283 $ 6,671 $ 10,427 $ 10,776 $ 77,583 Limited configuration 31,385 11,467 24,381 7,195 9,851 84,279 Service and other 3,258 5,349 528 455 1,240 10,830 $ 46,069 $ 55,099 $ 31,580 $ 18,077 $ 21,867 $ 172,692 Timing of revenue recognition Goods/services transferred at a point in time $ 31,896 $ 12,558 $ 22,060 $ 7,267 $ 10,126 $ 83,907 Goods/services transferred over time 14,173 42,541 9,520 10,810 11,741 88,785 $ 46,069 $ 55,099 $ 31,580 $ 18,077 $ 21,867 $ 172,692 Six Months Ended October 27, 2018 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 14,475 $ 77,204 $ 15,614 $ 20,045 $ 26,992 $ 154,330 Limited configuration 55,252 17,285 42,928 14,278 20,629 150,372 Service and other 6,911 10,082 1,158 911 3,116 22,178 $ 76,638 $ 104,571 $ 59,700 $ 35,234 $ 50,737 $ 326,880 Timing of revenue recognition Goods/services transferred at a point in time $ 56,479 $ 19,360 $ 39,058 $ 14,499 $ 21,662 $ 151,058 Goods/services transferred over time 20,159 85,211 20,642 20,735 29,075 175,822 $ 76,638 $ 104,571 $ 59,700 $ 35,234 $ 50,737 $ 326,880
Contract with Customer, Asset and Liability	The following table reflects the changes in our contract assets and liabilities: November 2, 2019 April 27, 2019 Dollar Change Percent Change Contract assets $ 34,395 $ 33,704 $ 691 2.1 % Contract liabilities - current 48,387 47,178 1,209 2.6 Contract liabilities - noncurrent 10,578 10,053 525 5.2

Segment Disclosure (Tables)

Segment Disclosure (Tables)	6 Months Ended
	Nov. 02, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table sets forth certain financial information for each of our five reporting segments for the periods indicated: Three Months Ended Six Months Ended November 2, October 27, November 2, October 27, Net sales: Commercial $ 39,651 $ 46,069 $ 83,686 $ 76,638 Live Events 59,319 55,099 118,625 104,571 High School Park and Recreation 30,193 31,580 60,658 59,700 Transportation 20,330 18,077 39,348 35,234 International 25,418 21,867 52,850 50,737 174,911 172,692 355,167 326,880 Gross profit: Commercial 7,862 11,757 17,080 18,651 Live Events 11,934 12,312 24,671 22,545 High School Park and Recreation 9,224 9,759 19,411 19,261 Transportation 7,003 6,140 13,757 11,591 International 4,064 2,789 10,673 8,956 40,087 42,757 85,592 81,004 Contribution margin: (1) Commercial 2,853 7,050 6,937 9,524 Live Events 8,362 8,918 17,234 15,903 High School Park and Recreation 5,988 6,706 12,580 13,258 Transportation 5,895 4,991 11,347 9,286 International 812 (1,033 ) 3,020 530 23,910 26,632 51,118 48,501 Non-allocated operating expenses: General and administrative 8,965 8,574 18,058 17,111 Product design and development 10,121 9,039 20,621 18,331 Operating income 4,824 9,019 12,439 13,059 Nonoperating income (expense): Interest income 162 188 431 385 Interest expense (31 ) (2 ) (66 ) (41 ) Other income (expense), net (514 ) (66 ) (321 ) (220 ) Income before income taxes 4,441 9,139 12,483 13,183 Income tax (benefit) expense (2,833 ) 533 (1,821 ) 3 Net income $ 7,274 $ 8,606 $ 14,304 $ 13,180 Depreciation and amortization: Commercial $ 895 $ 1,236 $ 1,869 $ 2,414 Live Events 1,394 1,334 2,792 2,506 High School Park and Recreation 507 517 1,019 960 Transportation 252 277 516 551 International 563 723 1,087 1,423 Unallocated corporate depreciation 730 725 1,441 1,446 $ 4,341 $ 4,812 $ 8,724 $ 9,300 (1) Contribution margin consists of gross profit less selling expense.
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas	The following table presents information about net sales and property and equipment, net of accumulated depreciation, in the United States and elsewhere: Three Months Ended Six Months Ended November 2, October 27, November 2, October 27, Net sales: United States $ 147,106 $ 145,936 $ 296,566 $ 267,261 Outside United States 27,805 26,756 58,601 59,619 $ 174,911 $ 172,692 $ 355,167 $ 326,880 November 2, April 27, Property and equipment, net of accumulated depreciation: United States $ 59,655 $ 59,192 Outside United States 7,508 6,122 $ 67,163 $ 65,314

Marketable Securities (Tables)

Marketable Securities (Tables)	6 Months Ended
	Nov. 02, 2019
Marketable Securities [Abstract]
Available-for-sale Securities	As of November 2, 2019 and April 27, 2019 , our available-for-sale securities consisted of the following: Amortized Cost Unrealized Losses Fair Value Balance as of November 2, 2019 Certificates of deposit $ 2,717 $ — $ 2,717 U.S. Government sponsored entities 745 — 745 Municipal bonds 156 — 156 $ 3,618 $ — $ 3,618 Balance as of April 27, 2019 Certificates of deposit $ 3,464 $ — $ 3,464 U.S. Government securities 10,779 (5 ) 10,774 U.S. Government sponsored entities 10,510 (28 ) 10,482 Municipal bonds 1,626 (2 ) 1,624 $ 26,379 $ (35 ) $ 26,344
Investments Classified by Contractual Maturity Date	All available-for-sale securities are classified as current assets, as they are readily available to support our current operating needs. The contractual maturities of available-for-sale debt securities as of November 2, 2019 were as follows: Less than 12 months 1-5 Years Total Certificates of deposit $ 1,734 $ 983 $ 2,717 U.S. Government sponsored entities 745 — 745 Municipal bonds 156 — 156 $ 2,635 $ 983 $ 3,618

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Nov. 02, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill related to each reportable segment for the six months ended November 2, 2019 were as follows: Live Events Commercial Transportation International Total Balance as of April 27, 2019 $ 2,276 $ 3,218 $ 49 $ 2,346 $ 7,889 Foreign currency translation 9 64 9 3 85 Balance as of November 2, 2019 $ 2,285 $ 3,282 $ 58 $ 2,349 $ 7,974

Selected Financial Statement _2

Selected Financial Statement Data (Tables)	6 Months Ended
	Nov. 02, 2019
Selected Financial Statement Data [Abstract]
Schedule of Inventory	Inventories consisted of the following: November 2, April 27, Raw materials $ 33,203 $ 30,789 Work-in-process 9,104 8,239 Finished goods 36,930 39,804 $ 79,237 $ 78,832
Schedule of Property and Equipment	Property and equipment, net consisted of the following: November 2, April 27, Land $ 2,176 $ 1,738 Buildings 67,561 66,403 Machinery and equipment 99,811 96,486 Office furniture and equipment 6,157 6,195 Computer software and hardware 52,735 55,460 Equipment held for rental 287 287 Demonstration equipment 7,547 7,422 Transportation equipment 7,993 7,715 244,267 241,706 Less accumulated depreciation 177,104 176,392 $ 67,163 $ 65,314

Leases (Tables)

Leases (Tables)	6 Months Ended
	Nov. 02, 2019
Leases [Abstract]
Components of Lease Cost	The lease cost was as follows: Three Months Ended November 2, 2019 Six Months Ended November 2, 2019 Operating lease cost (1) $ 1,010 $ 1,862 (1) Includes short-term leases, which are immaterial.
Supplemental Cash Flow Information	The weighted average remaining lease term and discount rate related to operating leases include: November 2, 2019 Weighted average remaining lease term 5.3 years Weighted average discount rate 3.5 % Supplemental unaudited cash flow information related to operating leases include: Three Months Ended November 2, 2019 Six Months Ended November 2, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 787 $ 1,603
Lease Liability Schedule	Future minimum operating lease payments as of, and subsequent to, November 2, 2019 under ASC 842 are as follows: Operating Leases (1) Fiscal years ending 2020 $ 1,536 2021 2,711 2022 1,993 2023 1,206 2024 1,085 Thereafter 2,398 Total lease payments 10,929 Less imputed interest (944 ) Total lease liabilities $ 9,985 (1) Includes $3,879 to extend the term of our Sioux Falls, South Dakota manufacturing facility.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Nov. 02, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of Product Warranty Liability	Changes in our warranty obligation for the six months ended November 2, 2019 consisted of the following: November 2, 2019 Beginning accrued warranty obligations $ 24,470 Warranties issued during the period 6,425 Settlements made during the period (5,355 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations 445 Ending accrued warranty obligations $ 25,985
Long-term Purchase Commitment	As of November 2, 2019 , we were obligated under the following unconditional purchase commitments: Fiscal years ending Amount 2020 $ 3,161 2021 4,644 2022 2,692 2023 1,820 2024 113 Thereafter 153 $ 12,583

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Nov. 02, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value	The following table sets forth by Level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis at November 2, 2019 and April 27, 2019 according to the valuation techniques we used to determine their fair values. There have been no transfers of assets or liabilities among the fair value hierarchies presented. Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of November 2, 2019 Cash and cash equivalents $ 29,265 $ — $ — $ 29,265 Restricted cash 59 — — 59 Available-for-sale securities: Certificates of deposit — 2,717 — 2,717 U.S. Government sponsored entities — 745 — 745 Municipal bonds — 156 — 156 Derivatives - asset position — 70 — 70 Derivatives - liability position — (233 ) — (233 ) Acquisition-related contingency consideration — — (895 ) (895 ) $ 29,324 $ 3,455 $ (895 ) $ 31,884 Balance as of April 27, 2019 Cash and cash equivalents $ 35,383 $ — $ — $ 35,383 Restricted cash 359 — — 359 Available-for-sale securities: Certificates of deposit — 3,464 — 3,464 U.S. Government securities 10,774 — — 10,774 U.S. Government sponsored entities — 10,482 — 10,482 Municipal bonds — 1,624 — 1,624 Derivatives - asset position — 91 — 91 Derivatives - liability position — (4 ) — (4 ) Acquisition-related contingency consideration — — (3,065 ) (3,065 ) $ 46,516 $ 15,657 $ (3,065 ) $ 59,108
Rollforward of Level 3 Contingent Consideration Liabilities	A roll forward of the Level 3 contingent liabilities, both short- and long-term, for the six months ended November 2, 2019 is as follows: Acquisition-related contingency consideration as of April 27, 2019 $ 3,065 Additions 50 Settlements (2,291 ) Interest 34 Foreign currency translation 37 Acquisition-related contingency consideration as of November 2, 2019 $ 895

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Nov. 02, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at November 2, 2019 and April 27, 2019 were as follows: November 2, 2019 April 27, 2019 U.S. Dollars Foreign U.S. Foreign Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 1,611 2,322 2,688 3,772 U.S. Dollars/Canadian Dollars 750 998 625 821 U.S. Dollars/British Pounds 5,874 4,585 3,547 2,680 U.S. Dollars/Euros 3,755 3,377 — — U.S. Dollars/Swiss Franc — — 927 925 U.S. Dollars/Malaysian Ringgit — — 60 246

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 28, 2019	Apr. 27, 2019	Oct. 27, 2018	Apr. 28, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 29,265		$ 35,383	$ 35,557
Restricted cash	59		359	26
Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows	$ 29,324		$ 35,742	$ 35,583	$ 29,755
Operating Lease, Right-of-Use Asset		$ 11,101
Operating Lease, Liability, Current		2,745
Operating Lease, Liability, Noncurrent		$ 8,356

Investments in Affiliates (Deta

Investments in Affiliates (Details) - USD ($) $ in Thousands	6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Apr. 27, 2019
Equity and Cost Method Investments [Abstract]
Equity Method Investments	$ 3,415		$ 3,657
Equity in loss of affiliate	(241)	$ (265)
Cost Method Investments	$ 42		$ 42

Earnings Per Share EPS - Reconc

Earnings Per Share EPS - Reconciliation of Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Nov. 02, 2019	Aug. 03, 2019	Oct. 27, 2018	Jul. 28, 2018	Nov. 02, 2019	Oct. 27, 2018
Net income
Basic earnings per share	$ 7,274	$ 7,030	$ 8,606	$ 4,574	$ 14,304	$ 13,180
Dilution associated with stock compensation plans	0		0		0	0
Diluted earnings per share	$ 7,274		$ 8,606		$ 14,304	$ 13,180
Shares
Basic earnings per share (in shares)	45,115		44,780		45,114	44,717
Dilution associated with stock compensation plans (in shares)	152		170		247	277
Diluted earnings per share (in shares)	45,267		44,950		45,361	44,994
Per share income
Basic earnings per share (in dollars per share)	$ 0.16		$ 0.19		$ 0.32	$ 0.29
Dilution associated with stock compensation plans (in dollars per share)	0		0		0	0
Diluted earnings per share (in dollars per share)	$ 0.16		$ 0.19		$ 0.32	$ 0.29

Earnings Per Share EPS - Antidi

Earnings Per Share EPS - Antidilutive Shares Excluded (Details) - Stock Options - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	2,282	2,377	2,238	2,129
Antidilutive securities excluded from computation of earnings per share, weighted average exercise price (dollars per share)	$ 9.90	$ 9.94	$ 9.97	$ 10.15

Revenue Recognition Disaggregat

Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 174,911	$ 172,692	$ 355,167	$ 326,880
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	83,606	83,907	159,913	151,058
Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	91,305	88,785	195,254	175,822
Commercial
Disaggregation of Revenue [Line Items]
Disaggregated revenue	39,651	46,069	83,686	76,638
Commercial | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	27,304	31,896	55,007	56,479
Commercial | Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	12,347	14,173	28,679	20,159
Live Events
Disaggregation of Revenue [Line Items]
Disaggregated revenue	59,319	55,099	118,625	104,571
Live Events | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	13,169	12,558	22,289	19,360
Live Events | Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	46,150	42,541	96,336	85,211
High School Park and Recreation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	30,193	31,580	60,658	59,700
High School Park and Recreation | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	22,112	22,060	44,711	39,058
High School Park and Recreation | Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	8,081	9,520	15,947	20,642
Transportation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	20,330	18,077	39,348	35,234
Transportation | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	7,521	7,267	14,218	14,499
Transportation | Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	12,809	10,810	25,130	20,735
International
Disaggregation of Revenue [Line Items]
Disaggregated revenue	25,418	21,867	52,850	50,737
International | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	13,500	10,126	23,688	21,662
International | Transferred over Time
Disaggregation of Revenue [Line Items]
Disaggregated revenue	11,918	11,741	29,162	29,075
Unique Configuration
Disaggregation of Revenue [Line Items]
Disaggregated revenue	78,567	77,583	170,724	154,330
Unique Configuration | Commercial
Disaggregation of Revenue [Line Items]
Disaggregated revenue	9,007	11,426	21,972	14,475
Unique Configuration | Live Events
Disaggregation of Revenue [Line Items]
Disaggregated revenue	41,413	38,283	87,000	77,204
Unique Configuration | High School Park and Recreation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	5,186	6,671	11,216	15,614
Unique Configuration | Transportation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	12,419	10,427	24,316	20,045
Unique Configuration | International
Disaggregation of Revenue [Line Items]
Disaggregated revenue	10,542	10,776	26,220	26,992
Limited Configuration
Disaggregation of Revenue [Line Items]
Disaggregated revenue	82,801	84,279	158,066	150,372
Limited Configuration | Commercial
Disaggregation of Revenue [Line Items]
Disaggregated revenue	26,654	31,385	53,889	55,252
Limited Configuration | Live Events
Disaggregation of Revenue [Line Items]
Disaggregated revenue	11,513	11,467	19,226	17,285
Limited Configuration | High School Park and Recreation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	24,127	24,381	47,927	42,928
Limited Configuration | Transportation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	7,383	7,195	13,970	14,278
Limited Configuration | International
Disaggregation of Revenue [Line Items]
Disaggregated revenue	13,124	9,851	23,054	20,629
Service and Other
Disaggregation of Revenue [Line Items]
Disaggregated revenue	13,543	10,830	26,377	22,178
Service and Other | Commercial
Disaggregation of Revenue [Line Items]
Disaggregated revenue	3,990	3,258	7,825	6,911
Service and Other | Live Events
Disaggregation of Revenue [Line Items]
Disaggregated revenue	6,393	5,349	12,399	10,082
Service and Other | High School Park and Recreation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	880	528	1,515	1,158
Service and Other | Transportation
Disaggregation of Revenue [Line Items]
Disaggregated revenue	528	455	1,062	911
Service and Other | International
Disaggregation of Revenue [Line Items]
Disaggregated revenue	$ 1,752	$ 1,240	$ 3,576	$ 3,116

Revenue Recognition Contract wi

Revenue Recognition Contract with Customer, Asset and Liability (Details) $ in Thousands	3 Months Ended
	Nov. 02, 2019USD ($)	Apr. 27, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Contract assets	$ 34,395	$ 33,704
Contract liabilities - current	48,387	47,178
Contract liabilities - noncurrent	10,578	$ 10,053
Dollar Change
Contract assets	691
Contract liabilities - current	1,209
Contract liabilities - noncurrent	$ 525
Change in Contract with Customer, Asset and Liability, Percentage [Abstract]
Contract assets percent change	2.10%
Contract liabilities, current, percent change	2.60%
Contract liabilities, noncurrent, percent change	5.20%
Number of Loss on Contracts	2	6
Provision for Loss on Contracts	$ 360	$ 2,353
Revenue recognized related to contract liability	$ 39,352

Revenue Recognition Remaining P

Revenue Recognition Remaining Performance Obligations (Details) $ in Thousands	Nov. 02, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 239,902
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, service agreements	57,852
Remaining performance obligation, products	182,050
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-28
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 202,745
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-27
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation recognition period	12 months

Segment Disclosure - Net Income

Segment Disclosure - Net Income by Segment (Details) $ in Thousands	3 Months Ended				6 Months Ended
	Nov. 02, 2019USD ($)	Aug. 03, 2019USD ($)	Oct. 27, 2018USD ($)	Jul. 28, 2018USD ($)	Nov. 02, 2019USD ($)segment	Oct. 27, 2018USD ($)
Segment Reporting Information
Number of business units | segment					5
Net sales	$ 174,911		$ 172,692		$ 355,167	$ 326,880
Gross profit	40,087		42,757		85,592	81,004
Non-allocated operating expenses:
General and administrative	8,965		8,574		18,058	17,111
Product design and development	10,121		9,039		20,621	18,331
Operating income	4,824		9,019		12,439	13,059
Nonoperating (expense) income:
Interest income	162		188		431	385
Interest expense	(31)		(2)		(66)	(41)
Other income (expense), net	(514)		(66)		(321)	(220)
Income before income taxes	4,441		9,139		12,483	13,183
Income tax (benefit) expense	(2,833)		533		(1,821)	3
Net income	7,274	$ 7,030	8,606	$ 4,574	14,304	13,180
Operating Segments
Segment Reporting Information
Net sales	174,911		172,692		355,167	326,880
Gross profit	40,087		42,757		85,592	81,004
Contribution Margin	23,910		26,632		51,118	48,501
Depreciation and amortization
Depreciation, amortization, and impairment	4,341		4,812		8,724	9,300
Operating Segments | Commercial
Segment Reporting Information
Net sales	39,651		46,069		83,686	76,638
Gross profit	7,862		11,757		17,080	18,651
Contribution Margin	2,853		7,050		6,937	9,524
Depreciation and amortization
Depreciation, amortization, and impairment	895		1,236		1,869	2,414
Operating Segments | Live Events
Segment Reporting Information
Net sales	59,319		55,099		118,625	104,571
Gross profit	11,934		12,312		24,671	22,545
Contribution Margin	8,362		8,918		17,234	15,903
Depreciation and amortization
Depreciation, amortization, and impairment	1,394		1,334		2,792	2,506
Operating Segments | High School Park and Recreation
Segment Reporting Information
Net sales	30,193		31,580		60,658	59,700
Gross profit	9,224		9,759		19,411	19,261
Contribution Margin	5,988		6,706		12,580	13,258
Depreciation and amortization
Depreciation, amortization, and impairment	507		517		1,019	960
Operating Segments | Transportation
Segment Reporting Information
Net sales	20,330		18,077		39,348	35,234
Gross profit	7,003		6,140		13,757	11,591
Contribution Margin	5,895		4,991		11,347	9,286
Depreciation and amortization
Depreciation, amortization, and impairment	252		277		516	551
Operating Segments | International
Segment Reporting Information
Net sales	25,418		21,867		52,850	50,737
Gross profit	4,064		2,789		10,673	8,956
Contribution Margin	812		(1,033)		3,020	530
Depreciation and amortization
Depreciation, amortization, and impairment	563		723		1,087	1,423
Operating Segments | Unallocated
Depreciation and amortization
Depreciation, amortization, and impairment	$ 730		$ 725		$ 1,441	$ 1,446

Segment Disclosure - Net Sales

Segment Disclosure - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018	Apr. 27, 2019
Net sales:
Net sales	$ 174,911	$ 172,692	$ 355,167	$ 326,880
Long-lived assets:
Long-lived assets	67,163		67,163		$ 65,314
United States
Net sales:
Net sales	147,106	145,936	296,566	267,261
Long-lived assets:
Long-lived assets	59,655		59,655		59,192
Outside United States
Net sales:
Net sales	27,805	$ 26,756	58,601	$ 59,619
Long-lived assets:
Long-lived assets	$ 7,508		$ 7,508		$ 6,122

Marketable Securities - Availab

Marketable Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
Schedule of Available-for-sale Securities
Amortized Cost	$ 3,618	$ 26,379
Unrealized Losses	0	(35)
Fair Value	3,618	26,344
Certificates of deposit
Schedule of Available-for-sale Securities
Amortized Cost	2,717	3,464
Unrealized Losses	0	0
Fair Value	2,717	3,464
U.S. Government securities
Schedule of Available-for-sale Securities
Amortized Cost		10,779
Unrealized Losses		(5)
Fair Value		10,774
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Amortized Cost	745	10,510
Unrealized Losses	0	(28)
Fair Value	745	10,482
Municipal bonds
Schedule of Available-for-sale Securities
Amortized Cost	156	1,626
Unrealized Losses	0	(2)
Fair Value	$ 156	$ 1,624

Marketable Securities - Avail_2

Marketable Securities - Available-for-sale by Maturity Date (Details) $ in Thousands	Nov. 02, 2019USD ($)
Schedule of Available-for-sale Securities
Less than 12 months	$ 2,635
Greater than 12 months	983
Total	3,618
Certificates of deposit
Schedule of Available-for-sale Securities
Less than 12 months	1,734
Greater than 12 months	983
Total	2,717
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Less than 12 months	745
Greater than 12 months	0
Total	745
Municipal bonds
Schedule of Available-for-sale Securities
Less than 12 months	156
Greater than 12 months	0
Total	$ 156

Goodwill (Details)

Goodwill (Details) $ in Thousands	6 Months Ended
	Nov. 02, 2019USD ($)
Goodwill
Balance as of April 27, 2019	$ 7,889
Foreign currency translation	85
Balance as of November 2, 2019	7,974
Live Events
Goodwill
Balance as of April 27, 2019	2,276
Foreign currency translation	9
Balance as of November 2, 2019	2,285
Commercial
Goodwill
Balance as of April 27, 2019	3,218
Foreign currency translation	64
Balance as of November 2, 2019	3,282
Transportation
Goodwill
Balance as of April 27, 2019	49
Foreign currency translation	9
Balance as of November 2, 2019	58
International
Goodwill
Balance as of April 27, 2019	2,346
Foreign currency translation	3
Balance as of November 2, 2019	$ 2,349

Selected Financial Statement _3

Selected Financial Statement Data Inventory (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
Selected Financial Statement Data [Abstract]
Raw materials	$ 33,203	$ 30,789
Work-in-process	9,104	8,239
Finished goods	36,930	39,804
Inventories	$ 79,237	$ 78,832

Selected Financial Statement _4

Selected Financial Statement Data Property and Equipment (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
Property, Plant and Equipment [Line Items]
Land	$ 2,176	$ 1,738
Buildings	67,561	66,403
Machinery and equipment	99,811	96,486
Office furniture and equipment	6,157	6,195
Computer software and hardware	52,735	55,460
Equipment held for rental	287	287
Demonstration equipment	7,547	7,422
Transportation equipment	7,993	7,715
Property, Plant and Equipment, Gross	244,267	241,706
Less accumulated depreciation	177,104	176,392
Property and equipment, net	$ 67,163	$ 65,314

Receivables (Details)

Receivables (Details) - USD ($) $ in Thousands	6 Months Ended
	Nov. 02, 2019	Apr. 27, 2019
Receivables
Allowance for doubtful accounts	$ 2,516	$ 2,208
Retainage on construction-type contracts, expected to be collected in one year	717	440
Financing Receivable
Receivables
Long-term contracts and lease receivables, present value	6,325	3,514
Long-term contracts and lease receivables, face amount	$ 5,234	$ 3,271
Financing Receivable | Minimum
Receivables
Contract and lease receivables annual interest rates	5.00%
Financing Receivable | Maximum
Receivables
Contract and lease receivables annual interest rates	9.00%

Share Repurchase Program (Detai

Share Repurchase Program (Details) - USD ($) shares in Thousands, $ in Thousands	6 Months Ended
	Nov. 02, 2019	Jun. 17, 2016
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 40,000
Stock Repurchased During Period, Shares	270
Stock Repurchased During Period, Value	$ 1,682
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 36,493

Leases (Details)

Leases (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Nov. 02, 2019USD ($)	Nov. 02, 2019USD ($)
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 1,010	$ 1,862
Weighted average remaining lease term (years)	5 years 3 months	5 years 3 months
Weighted average discount rate (percent)	3.50%	3.50%
Operating lease payments	$ 787	$ 1,603
Minimum
Lessee, Lease, Description [Line Items]
Term of lease (years)	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Term of lease (years)	5 years	5 years

Leases - Lease Liability Maturi

Leases - Lease Liability Maturity Schedule (Details) $ in Thousands	6 Months Ended
	Nov. 02, 2019USD ($)
Leases [Abstract]
2020	$ 1,536
2021	2,711
2022	1,993
2023	1,206
2024	1,085
Thereafter	2,398
Total lease payments	10,929
Less imputed interest	(944)
Total lease liabilities	9,985
Lessee, Operating Lease, Option To Extend, Payment	$ 3,879

Commitments and Contingencies -

Commitments and Contingencies - Litigation (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency, Estimate of Possible Loss	$ 1,981	$ 1,072

Commitments and Contingencies_2

Commitments and Contingencies - Guarantees and Warranties (Details) $ in Thousands	6 Months Ended
	Nov. 02, 2019USD ($)
Movement in Standard Product Warranty Accrual
Beginning accrued warranty obligations	$ 24,470
Warranties issued during the period	6,425
Settlements made during the period	(5,355)
Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations	445
Ending accrued warranty obligations	25,985
Performance guarantees | Letter of credit and bank guarantees agreements
Guarantees:
Performance guarantees outstanding	15,184
Performance guarantees | Surety bonds
Guarantees:
Performance guarantees outstanding	$ 8,372

Commitments and Contingencies_3

Commitments and Contingencies - Purchase Commitments (Details) $ in Thousands	Nov. 02, 2019USD ($)
Purchase Obligation, Fiscal Year Maturity
2020	$ 3,161
2021	4,644
2022	2,692
2023	1,820
2024	113
Thereafter	153
Total	$ 12,583

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 02, 2019	Oct. 27, 2018	Nov. 02, 2019	Oct. 27, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	(63.80%)	5.80%	(14.60%)	0.00%
Unrecognized tax benefits that would affect our effective tax rate if recognized	$ 735		$ 735

Fair Value Measurement (Details

Fair Value Measurement (Details) - USD ($) $ in Thousands	Nov. 02, 2019	Apr. 27, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	$ 3,618	$ 26,344
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	2,717	3,464
U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		10,774
U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	745	10,482
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	156	1,624
Reported Value Measurement [Member] | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	29,265	35,383
Restricted cash	59	359
Derivatives - asset position	70	91
Derivatives - liability position	(233)	(4)
Acquisition-related contingency consideration	(895)	(3,065)
Assets (Liabilities), net	31,884	59,108
Reported Value Measurement [Member] | Recurring Basis | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	2,717	3,464
Reported Value Measurement [Member] | Recurring Basis | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		10,774
Reported Value Measurement [Member] | Recurring Basis | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	745	10,482
Reported Value Measurement [Member] | Recurring Basis | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	156	1,624
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	29,265	35,383
Restricted cash	59	359
Derivatives - asset position	0	0
Derivatives - liability position	0	0
Acquisition-related contingency consideration	0	0
Assets (Liabilities), net	29,324	46,516
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		10,774
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - asset position	70	91
Derivatives - liability position	(233)	(4)
Acquisition-related contingency consideration	0	0
Assets (Liabilities), net	3,455	15,657
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	2,717	3,464
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	745	10,482
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	156	1,624
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - asset position	0	0
Derivatives - liability position	0	0
Acquisition-related contingency consideration	(895)	(3,065)
Assets (Liabilities), net	(895)	(3,065)
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	$ 0	$ 0

Fair Value Measurement - Roll F

Fair Value Measurement - Roll Forward of the Level 3 Contingent Consideration Liability (Details) - Estimate of Fair Value Measurement [Member] - Level 3 - Recurring Basis - Contingent Consideration Liability $ in Thousands	6 Months Ended
	Nov. 02, 2019USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related contingency consideration as of April 27, 2019	$ 3,065
Additions	50
Settlements	(2,291)
Interest	34
Foreign currency translation	37
Acquisition-related contingency consideration as of November 2, 2019	$ 895

Derivative Financial Instrume_3

Derivative Financial Instruments (Details) € in Thousands, £ in Thousands, SFr in Thousands, RM in Thousands, $ in Thousands, $ in Thousands, $ in Thousands

6 Months Ended

Nov. 02, 2019USD ($)

Nov. 02, 2019CAD ($)

Nov. 02, 2019AUD ($)

Nov. 02, 2019MYR (RM)

Nov. 02, 2019EUR (€)

Nov. 02, 2019CHF (SFr)

Nov. 02, 2019GBP (£)

Apr. 27, 2019USD ($)

Apr. 27, 2019CAD ($)

Apr. 27, 2019AUD ($)

Apr. 27, 2019MYR (RM)

Apr. 27, 2019EUR (€)

Apr. 27, 2019CHF (SFr)

Apr. 27, 2019GBP (£)

Derivative

Derivative term (months)

16 months

U.S. Dollars/Australian Dollars | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

$ 1,611

$ 2,322

$ 2,688

$ 3,772

U.S. Dollars/Canadian Dollars | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

750

$ 998

625

$ 821

U.S. Dollars/British Pounds | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

5,874

£ 4,585

3,547

£ 2,680

U.S. Dollars/Euro | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

3,755

€ 3,377

0

€ 0

U.S. Dollars/Swiss Franc | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

0

SFr 0

927

SFr 925

U.S. Dollars/Malaysian Ringgit | Not Designated as Hedging Instrument

Derivative

Foreign currency exchange forward contracts

0

RM 0

60

RM 246

Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2

Derivative

Derivatives - currency forward contract, asset

70

91

Derivatives - currency forward contracts, liability

$ (233)

$ (4)