Daktronics (DAKT) 10-K 11 Jun 21 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	May 01, 2021	Jun. 03, 2021	Oct. 31, 2020
Document Information [Line Items]
Entity Central Index Key	0000915779
Entity Registrant Name	DAKTRONICS INC
Amendment Flag	false
Current Fiscal Year End Date	--05-01
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Document Type	10-K
Document Annual Report	true
Document Period End Date	May 1, 2021
Document Transition Report	false
Entity File Number	0-23246
Entity Incorporation, State or Country Code	SD
Entity Tax Identification Number	46-0306862
Entity Address, Address Line One	201 Daktronics Drive
Entity Address, City or Town	Brookings
Entity Address, State or Province	SD
Entity Address, Postal Zip Code	57006
City Area Code	605
Local Phone Number	692-0200
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 179,767,088
Entity Common Stock, Shares Outstanding		45,146,408
ICFR Auditor Attestation Flag	true
Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Preferred Stock Purchase Rights
Trading Symbol	DAKT
Security Exchange Name	NASDAQ
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, No Par Value
Trading Symbol	DAKT
Security Exchange Name	NASDAQ

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 77,590	$ 40,398
Restricted cash	2,812	14
Marketable securities	0	1,230
Accounts receivable, net	67,808	72,577
Inventories	74,356	86,803
Contract assets	32,799	35,467
Current maturities of long-term receivables	1,462	3,519
Prepaid expenses and other current assets	7,445	9,629
Income tax receivables	731	548
Property and equipment and other assets available for sale	0	1,817
Total current assets	265,003	252,002
Property and equipment, net	58,682	67,484
Long-term receivables, less current maturities	1,635	1,114
Goodwill	8,414	7,743
Intangibles, net	2,083	3,354
Investment in affiliates and other assets	27,403	27,683
Deferred income taxes	11,944	13,271
TOTAL ASSETS	375,164	372,651
CURRENT LIABILITIES:
Accounts payable	40,251	47,834
Contract liabilities	64,495	50,897
Accrued expenses	30,672	36,626
Warranty obligations	10,464	9,764
Income taxes payable	738	844
Total current liabilities	146,620	145,965
Long-term warranty obligations	15,496	15,860
Long-term contract liabilities	10,720	10,707
Other long-term obligations	7,816	22,105
Long-term income tax payable	548	582
Deferred income taxes	410	452
Total long-term liabilities	34,990	49,706
SHAREHOLDERS' EQUITY:
Common stock, no par value, authorized 115,000,000 shares; 46,264,576 and 45,913,209 shares issued at May 1, 2021 and May 2, 2020, respectively	60,575	60,010
Additional paid-in capital	46,595	44,627
Retained earnings	96,016	85,090
Treasury stock, at cost, 1,297,409 and 1,343,281 shares at May 1, 2021 and May 2, 2020, respectively	(7,297)	(7,470)
Accumulated other comprehensive loss	(2,335)	(5,277)
TOTAL SHAREHOLDERS' EQUITY	193,554	176,980
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 375,164	$ 372,651

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares $ / shares in Thousands	May 01, 2021	May 02, 2020
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, share authorized (in shares)	115,000,000	115,000,000
Common stock, share issued (in shares)	46,264,576	45,913,209
Treasury stock, shares (in shares)	1,297,409	1,343,281

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Net sales	$ 482,033	$ 608,932	$ 569,704
Cost of sales	361,450	470,232	439,410
Gross profit	120,583	138,700	130,294
Operating expenses:
Selling	48,649	65,902	64,648
General and administrative	27,980	35,193	34,817
Product design and development	26,846	37,772	35,557
Operating income (loss)	17,108	(167)	(4,728)
Nonoperating income (expense):
Interest income	230	805	1,031
Interest expense	(295)	(106)	(160)
Other (expense) income, net	(2,983)	(541)	(1,087)
Income (loss) before income taxes	14,060	(9)	(4,944)
Income tax expense (benefit)	3,134	(500)	(3,986)
Net income (loss)	$ 10,926	$ 491	$ (958)
Weighted average shares outstanding:
Basic (in shares)	44,989	45,031	44,926
Diluted (in shares)	45,202	45,316	44,926
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.24	$ 0.01	$ (0.02)
Diluted (in dollars per share)	$ 0.24	$ 0.01	$ (0.02)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Net income (loss)	$ 10,926	$ 491	$ (958)
Other comprehensive income (loss):
Cumulative translation adjustments	2,942	(965)	(1,749)
Unrealized gain (loss) on available-for-sale securities, net of tax	0	44	107
Total other comprehensive income (loss), net of tax	2,942	(921)	(1,642)
Comprehensive income (loss)	$ 13,868	$ (430)	$ (2,600)

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Apr. 28, 2018	$ 54,731	$ 40,328	$ 107,105	$ (1,834)	$ (2,714)	$ 197,616
Net income (loss)	0	0	(958)	0	0	(958)
Cumulative translation adjustments	0	0	0	0	(1,749)	(1,749)
Unrealized gain (loss) on available-for-sale securities, net of tax	0	0	0	0	107	107
Share-based compensation	0	2,479	0	0	0	2,479
Exercise of stock options	1,318	0	0	0	0	1,318
Tax payments related to RSU issuances	0	(246)	0	0	0	(246)
Employee savings plan activity	1,650	0	0	0	0	1,650
Dividends paid	0	0	(12,554)	0	0	(12,554)
Balance at Apr. 27, 2019	57,699	42,561	93,593	(1,834)	(4,356)	187,663
Net income (loss)	0	0	491	0	0	491
Cumulative translation adjustments	0	0	0	0	(965)	(965)
Unrealized gain (loss) on available-for-sale securities, net of tax	0	0	0	0	44	44
Share-based compensation	0	2,265	0	0	0	2,265
Tax payments related to RSU issuances	0	(199)	0	0	0	(199)
Employee savings plan activity	2,311	0	0	0	0	2,311
Dividends paid	0	0	(8,994)	0	0	(8,994)
Treasury stock purchase	0	0	0	(5,636)	0	(5,636)
Balance at May. 02, 2020	60,010	44,627	85,090	(7,470)	(5,277)	176,980
Net income (loss)	0	0	10,926	0	0	10,926
Cumulative translation adjustments	0	0	0	0	2,942	2,942
Unrealized gain (loss) on available-for-sale securities, net of tax						0
Share-based compensation	0	2,067	0	0	0	2,067
Tax payments related to RSU issuances	0	(125)	0	0	0	(125)
Employee savings plan activity	565	0	0	0	0	565
Treasury stock reissued	0	26	0	173	0	199
Balance at May. 01, 2021	$ 60,575	$ 46,595	$ 96,016	$ (7,297)	$ (2,335)	$ 193,554

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	May 02, 2020	Apr. 27, 2019
Dividends declared, price per share (in dollars per share)	$ 0.20	$ 0.28

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 10,926	$ 491	$ (958)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	17,077	17,718	18,635
(Gain) loss on sale of property, equipment and other assets	(572)	(35)	(441)
Share-based compensation	2,067	2,265	2,479
Contingent consideration adjustment	0	0	286
Equity in loss of affiliate	2,370	741	844
Provision for doubtful accounts, net of recovery	1,299	(99)	194
Deferred income taxes, net	1,314	(2,183)	(3,379)
Change in operating assets and liabilities	31,731	(8,090)	11,886
Net cash provided by operating activities	66,212	10,808	29,546
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(7,891)	(18,091)	(17,268)
Proceeds from sales of property, equipment and other assets	3,184	322	607
Purchases of marketable securities	0	0	(25,337)
Proceeds from sales or maturities of marketable securities	1,230	25,162	33,706
Purchases of and loans to equity investment	(6,744)	(11,664)	(1,300)
Acquisitions, net of cash acquired	0	0	(2,250)
Net cash used in investing activities	(10,221)	(4,271)	(11,842)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on notes payable	0	15,000	0
Payments on notes payable	(15,000)	0	0
Principal payments on long-term obligations	(460)	(2,149)	(450)
Dividends paid	0	(8,994)	(12,554)
Proceeds from exercise of stock options	0	0	1,318
Payments for common shares repurchased	0	(5,636)	0
Tax payments related to RSU issuances	(125)	(199)	(246)
Net cash used in financing activities	(15,585)	(1,978)	(11,932)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(416)	111	215
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	39,990	4,670	5,987
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	40,412	35,742	29,755
End of period	$ 80,402	$ 40,412	$ 35,742

Note 1 - Nature of Business and

Note 1 - Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Note 1. Nature of business Fiscal year 52 53 April 30 April 30 13 53 first three 13 May 1, 2021 April 27, 2019 52 May 2, 2020 53 Principles of consolidation Investments in affiliates 323, Investments - Equity Method and Joint Ventures not 321, Investments - Equity Securities not may not During the fourth 2020, X 1 fourth 2021, The aggregate amount of investments accounted for under the equity method was $19,887 and $17,257 at May 1, 2021 May 2, 2020 2021 2020 2019 2021 2020 2019 Summarized financial information for equity method investments consist of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Balance sheet data: Current assets $ 7,534 $ 10,593 $ 192 Non-current assets 4,637 4,266 2,626 Current liabilities 2,807 2,755 839 Non-current liabilities 1,793 4,086 2,599 Income statement data: Net loss (13,436 ) (1,383 ) (2,168 ) Use of estimates may Cash and cash equivalents three may not Restricted cash The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the totals of the same amounts shown in the consolidated statement of cash flows: May 1, 2021 May 2, 2020 April 27, 2019 Cash and cash equivalents $ 77,590 $ 40,398 $ 35,383 Restricted cash 2,812 14 359 Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows $ 80,402 $ 40,412 $ 35,742 Inventories: 330, Inventory, first first Allowance for doubtful accounts: may not 310, Receivables Revenue recognition 606, Revenue from Contracts with Customers, Contracts are identified and follow the revenue recognition policies when all of the following occur: we have evidence that all parties to the contract have approved the contract and are committed to perform their respective obligations, we can identify each party’s rights regarding the goods or services to be transferred, we can identify the payment terms for the goods or services to be transferred, the contract has commercial substance, and it is probable we will collect substantially all of the consideration to which we would be entitled in exchange for the goods or services. Pre-contract costs are generally expensed as incurred, unless they are directly associated with an anticipated contract and recoverability from that contract is probable. Pre-contract costs directly associated with anticipated contracts expected to be recoverable include $492 and $1,582 as of May 1, 2021 May 2, 2020 At contract inception, we identify performance obligations by reviewing the agreement for material distinct goods and services. Goods and services are distinct when the customer can benefit from them on its own and our promises to transfer these items are identifiable from other promises within the contract. When we are contracted to provide a single promise (an integrated system), we often treat it as a single performance obligation if we are providing goods and services with the same pattern of transfer that are highly integrated or interdependent, that are modified or customized by other goods or services promised, or that provide a combined outcome for which the customer has contracted. When less interdependency or integration is necessary, or when the customer can benefit from distinct items, we separate the contract into multiple performance obligations. We account for extended warranties and other services ("service-type warranties") that represent a distinct service as a separate performance obligation. Our contracts can contain multiple components of transaction price. We evaluate each contract for these components and include fixed consideration, variable consideration, financing components, and non-cash consideration and exclude consideration payable to a customer and sales taxes in the transaction price. When we are responsible for site installations which include subcontracted work, we maintain the contractual responsibilities and risks and include the consideration for these services in the transaction price. When our contract contains variable consideration, including return rights, discounts, claims, unpriced change orders, and liquidated damages, we estimate the transaction price using the expected value (i.e., the sum of the probability-weighted amount) or the most likely amount method, whichever is expected to better predict revenue for that contract situation. We also constrain the revenue to the extent that it is probable that a significant reversal of the amount of cumulative revenue recognized will not one not 6. When separate performance obligations are identified, we allocate the transaction price to the individual performance obligation based on the best method we judge as faithfully depicting the value of the performance obligation. Many of our contracts are bundled, and we do not Revenue is recognized when we satisfy a performance obligation. We receive payments from customers based on a billing schedule as established in our contracts. Billing schedules include down payments and progress billings over time; set milestone payments that are specific to the project are scheduled for performance-based payments or are set time-based payment(s). Variability in contract assets and contract liabilities relates to the timing of billings and revenue recognition, which can vary significantly depending on contractual payment terms, build and installation schedules and the related timing differences in transfer of control. Balances are also impacted by the seasonality in our business. Significant judgments and estimates are used in our revenue policies. Throughout the revenue cycle, we evaluate contractual evidence, monitor our performance, evaluate variable consideration changes, update estimated costs to complete cost-to-cost projects, and obtain evidence of deliveries or other control change evidence for appropriate and consistent revenue recognition. We maintain internal policies and procedures to provide guidance for those involved in recording revenue. We monitor for changes in our business sales practices and customer interactions to capture the appropriate types of performance obligations and adjust for any change in control terms and conditions. Our material performance obligation types include: Unique configuration contracts may We may Revenue for uniquely configured (custom) or integrated systems is recognized over time using the cost incurred input method. Over time revenue recognition is appropriate because we have no Contract modifications to existing contracts with customers are evaluated in accordance with the five not may The time between contract order and project completion is typically less than 12 may Limited configuration (standard systems) and after-sale parts contracts no not one may Revenue is recognized at a point in time when control passes, or over time as services are performed. When fulfilling limited configuration performance obligations, we are typically able to redirect the video displays or scoring, messaging, or audio equipment to another customer without incurring significant economic losses. Therefore, we have an alternative use for the performance obligation and recognize revenue upon our substantial completion and at the point in time we estimate control has transferred to the customer. When limited configured single performance obligations are more service-type (i.e., installation and integration services), we recognize revenue over time using the cost-to-cost input method, which is the most faithful depiction of the customer obtaining control and benefits from the work performed. Services and other Software: Shipping and handling costs: Warranty: one five one 10 may Long-term receivables and advertising rights: Property and equipment 360, Property, Plant, and Equipment, Years Buildings and improvements 5 - 40 Machinery and equipment 5 - 7 Office furniture and equipment 3 - 5 Computer software and hardware 3 - 5 Equipment held for rental 2 - 7 Demonstration equipment 3 - 5 Transportation equipment 5 - 7 Leasehold improvements are depreciated over the lesser of the useful life of the asset or the term of the lease. Property and equipment held for sale: 360, Property, Plant, and Equipment, no Impairment of Long-Lived Assets 360, Property, Plant, and Equipment may not When evaluating long-lived assets for potential impairment, we first Our impairment loss calculations contain uncertainties because they require management to make assumptions and to apply judgment to estimate future cash flows and asset fair values, including forecasting useful lives of the assets and selecting the discount rate that reflects the risk inherent in future cash flows. Goodwill and Other Intangible Assets 350, Goodwill and Other. not may not 0 first not not If a quantitative analysis is performed, we utilize an income approach to estimate the fair value of each reporting unit. We selected this method because we believe it most appropriately measures our income producing assets. We considered using the market approach and cost approach, but concluded they were not Goodwill was not 2021 Foreign currency translation 830, Foreign Currency Matters. Income taxes 740, Income Taxes not not In addition, because we operate in multiple income tax jurisdictions both within the United States and internationally, the calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws. Resolution of these uncertainties in a manner inconsistent with our expectations could have a material impact on our financial condition and operating results. See "Note 12. Comprehensive income (loss) 220, Reporting Comprehensive Income not Product design and development 730, Research and Development Advertising costs 720 35, Advertising Costs 2021 2020 2019 Earnings per share (“EPS”) 260, Earnings Per Share, may The following is a reconciliation of the net income (loss) and common share amounts used in the calculation of basic and diluted EPS for the fiscal years ended May 1, 2021 May 2, 2020 April 27, 2019 Net income (loss) Shares Per share income (loss) For the year ended May 1, 2021: Basic earnings per share $ 10,926 44,989 $ 0.24 Dilution associated with stock compensation plans — 213 — Diluted earnings per share $ 10,926 45,202 $ 0.24 For the year ended May 2, 2020: Basic earnings per share $ 491 45,031 $ 0.01 Dilution associated with stock compensation plans — 285 — Diluted earnings per share $ 491 45,316 $ 0.01 For the year ended April 27, 2019: Basic loss per share $ (958 ) 44,926 $ (0.02 ) Dilution associated with stock compensation plans — — — Diluted loss per share $ (958 ) 44,926 $ (0.02 ) Options outstanding to purchase 2,262, 2,198 and 2,304 shares of common stock with a weighted average exercise price of $9.11, $9.95 and $9.99 for the fiscal years ended May 1, 2021 May 2, 2020 April 27, 2019 not Share-based compensation 718, Compensation-Stock Compensation. 718, 10. Other Business Developments - Coronavirus Pandemic During fiscal 2021 19" 2021, April 1, 2020, 2021 , A special voluntary retirement and voluntary exit incentive program ("Offering") and two 2021 19 first 2021, first 2021 first 2021 $2,742 second 2021 We received governmental wage subsidies from various governmental programs related to COVID- 19 2021 December 31, 2020 . May 1, 2021 50 December 31, 2021, 50 December 31, 2022 . Recent Accounting Pronouncements Accounting Standards Adopted In February 2016, 2016 02, Leases (Topic 842 2016 02 not 12 2016 02 July 2018, 2018 10, Codification Improvements to Topic 842 2018 11, Leases (Topic 842 We adopted ASU 2016 02 first 2020 April 28, 2019. 840 not 840. not not one not not no April 28, 2019, 9. In January 2017, 2017 04, 350 second two not 2017 04 first 2021 not In June 2016 , 2016 03 , Measurement of Credit Losses on Financial Instruments, 2016 03 2016 03 2016 03 first 2021 not We estimate an allowance for doubtful accounts using a loss rate method. We measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable supportable forecasts. A reconciliation of the beginning and ending allowance for doubtful accounts is as follows: Allowance for Doubtful Accounts: Balance as of May 2, 2020 $ 2,828 Charged to costs and expenses 3,318 Deductions (1) (2,204 ) Balance as of May 1, 2021 $ 3,942 ( 1 Accounting Standards Not There are no not May 1, 2021

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	Note 2. Disaggregation of revenue In accordance with ASC 606 10 50, The following table presents our disaggregation of revenue by segments: Fiscal Year 2021 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 16,535 $ 104,682 $ 22,258 $ 36,398 $ 22,266 $ 202,139 Limited configuration 96,420 18,679 66,697 19,690 32,583 234,069 Service and other 14,345 19,688 2,602 2,196 6,994 45,825 $ 127,300 $ 143,049 $ 91,557 $ 58,284 $ 61,843 $ 482,033 Timing of revenue recognition Goods/services transferred at a point in time $ 98,243 $ 23,906 $ 60,859 $ 20,180 $ 34,388 $ 237,576 Goods/services transferred over time 29,057 119,143 30,698 38,104 27,455 244,457 $ 127,300 $ 143,049 $ 91,557 $ 58,284 $ 61,843 $ 482,033 Fiscal Year 2020 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 35,212 $ 140,044 $ 19,176 $ 43,519 $ 40,454 $ 278,405 Limited configuration 102,847 31,897 74,266 24,588 45,626 279,224 Service and other 14,568 24,650 2,972 2,032 7,081 51,303 $ 152,627 $ 196,591 $ 96,414 $ 70,139 $ 93,161 $ 608,932 Timing of revenue recognition Goods/services transferred at a point in time $ 105,096 $ 39,521 $ 68,582 $ 25,157 $ 47,345 $ 285,701 Goods/services transferred over time 47,531 157,070 27,832 44,982 45,816 323,231 $ 152,627 $ 196,591 $ 96,414 $ 70,139 $ 93,161 $ 608,932 Fiscal Year 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 25,171 $ 119,569 $ 21,792 $ 38,490 $ 44,989 $ 250,011 Limited configuration 108,921 30,107 66,825 23,799 42,134 271,786 Service and other 14,741 21,276 2,570 2,102 7,218 47,907 $ 148,833 $ 170,952 $ 91,187 $ 64,391 $ 94,341 $ 569,704 Timing of revenue recognition Goods/services transferred at a point in time $ 111,617 $ 35,313 $ 60,763 $ 24,500 $ 44,758 $ 276,951 Goods/services transferred over time 37,216 135,639 30,424 39,891 49,583 292,753 $ 148,833 $ 170,952 $ 91,187 $ 64,391 $ 94,341 $ 569,704 See "Note 3. 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 balances and changes in our contract assets and liabilities: May 1, 2021 May 2, 2020 Contract assets $ 32,799 $ 35,467 Contract liabilities - current 64,495 50,897 Contract liabilities - non-current 10,720 10,707 The changes in our contract assets and contract liabilities from May 2, 2020 May 1, 2021 no 2021 For service-type warranty contracts, we allocate revenue to this performance obligation, recognize the revenue over time, and recognize costs as incurred. Earned and unearned revenues for these contracts are included in the "Contract assets" and "Contract liabilities". Changes in unearned service-type warranty contracts, net were as follows: May 1, 2021 May 2, 2020 Balance at beginning of year $ 24,490 $ 24,939 New contracts sold 35,623 41,169 Less: reductions for revenue recognized (36,723 ) (41,167 ) Foreign currency translation and other 1,200 (451 ) Balance at end of year $ 24,590 $ 24,490 As of May 1, 2021 May 2, 2020 During fiscal 2021 $46,533 May 2, 2020 Remaining performance obligations As of May 1, 2021 May 1, 2021 may

Note 3 - Segment Reporting

Note 3 - Segment Reporting	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 3. We organize and manage our business by the following five 280 10, Segment Reporting Our Commercial business unit primarily consists of sales of our integrated video display systems, digital billboards, Galaxy ® ™ ® ® ® Assets are not 1. not We do not not The following table sets forth certain financial information for each of our five Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Net sales: Commercial $ 127,300 $ 152,627 $ 148,833 Live Events 143,049 196,591 170,952 High School Park and Recreation 91,557 96,414 91,187 Transportation 58,284 70,139 64,391 International 61,843 93,161 94,341 Total company net sales 482,033 608,932 569,704 Gross profit: Commercial 33,072 29,246 31,785 Live Events 24,397 39,518 32,164 High School Park and Recreation 31,472 28,874 26,858 Transportation 20,329 23,910 22,525 International 11,313 17,152 16,962 120,583 138,700 130,294 Operating expenses Selling 48,649 65,902 64,648 General and administrative 27,980 35,193 34,817 Product design and development 26,846 37,772 35,557 103,475 138,867 135,022 Operating income (loss) 17,108 (167 ) (4,728 ) Nonoperating income (expense): Interest income 230 805 1,031 Interest expense (295 ) (106 ) (160 ) Other (expense) income, net (2,983 ) (541 ) (1,087 ) Income (loss) before income taxes $ 14,060 $ (9 ) $ (4,944 ) Depreciation and amortization: Commercial $ 3,037 $ 3,682 $ 4,795 Live Events 5,798 5,605 5,194 High School Park and Recreation 1,942 2,025 1,965 Transportation 979 1,029 1,102 International 2,887 2,460 2,829 Unallocated corporate depreciation 2,434 2,917 2,750 $ 17,077 $ 17,718 $ 18,635 No Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Net sales: United States $ 413,211 $ 504,931 $ 460,099 Outside United States 68,822 104,001 109,605 $ 482,033 $ 608,932 $ 569,704 Property and equipment, net of accumulated depreciation: United States $ 50,130 $ 58,422 $ 59,192 Outside United States 8,552 9,062 6,122 $ 58,682 $ 67,484 $ 65,314 We have numerous customers worldwide for sales of our products and services, and no 10% not We have numerous raw material and component suppliers, and no 10%

Note 4 - Goodwill and Intangibl

Note 4 - Goodwill and Intangible Assets	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 4. We account for goodwill and intangible assets in accordance with ASC 350, Goodwill and Other. Goodwill The changes in the carrying amount of goodwill related to each reportable segment for the fiscal year ended May 1, 2021 Live Events Commercial Transportation International Total Balance as of May 2, 2020: $ 2,266 $ 3,144 $ 38 $ 2,295 $ 7,743 Foreign currency translation 47 320 46 258 671 Balance as of May 1, 2021: $ 2,313 $ 3,464 $ 84 $ 2,553 $ 8,414 We perform an analysis of goodwill on an annual basis and test for impairment more frequently if events or changes in circumstances indicate that an asset might be impaired. Our annual analysis is performed during our third first third 2021 2020 2019 Intangible Assets The following table summarizes intangible assets, net, as of May 1, 2021 May 2, 2020 May 1, 2021 Weighted Average Life (in years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Registered trademarks 19.4 $ 738 $ 246 $ 492 Software 3.0 6,606 6,412 194 Customer relationships 10.0 2,984 1,588 1,396 Other 1.5 132 131 1 Total amortized intangible assets 6.1 $ 10,460 $ 8,377 $ 2,083 May 2, 2020 Weighted Average Life (in years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Registered trademarks 19.4 $ 663 $ 183 $ 480 Software 3.0 6,247 4,890 1,357 Customer relationships 10.0 2,641 1,135 1,506 Other 1.5 120 109 11 Total amortized intangible assets 6.0 $ 9,671 $ 6,317 $ 3,354 In the fiscal years 2021 2020 2019 As of May 1, 2021 Fiscal years ending Amount 2022 $ 512 2023 316 2024 316 2025 316 2026 281 Thereafter 342 Total expected amortization expense $ 2,083

Note 5 - Selected Financial Sta

Note 5 - Selected Financial Statement Data	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Additional Financial Information Disclosure [Text Block]	Note 5. Inventories consisted of the following: May 1, 2021 May 2, 2020 Raw materials $ 29,913 $ 35,306 Work-in-process 9,948 12,102 Finished goods 34,495 39,395 $ 74,356 $ 86,803 Property and equipment, net consisted of the following: May 1, 2021 May 2, 2020 Land $ 1,924 $ 2,183 Buildings 69,608 68,804 Machinery and equipment 98,451 104,157 Office furniture and equipment 4,103 6,151 Computer software and hardware 44,851 53,441 Equipment held for rental — 287 Demonstration equipment 7,186 8,473 Transportation equipment 7,264 7,944 233,387 251,440 Less accumulated depreciation 174,705 183,956 $ 58,682 $ 67,484 Our depreciation expense was $15,575, $16,230, and $16,564 for the fiscal years 2021 2020 2019 In the fiscal years 2021 2020 2019 Accrued expenses consisted of the following: May 1, 2021 May 2, 2020 Compensation $ 13,079 $ 15,967 Taxes, other than income taxes 5,888 3,597 Accrued employee benefits 2,174 2,243 Operating lease liabilities 1,881 2,416 Short-term accrued expenses 7,455 9,270 Claims liabilities — 2,562 Acquisition-related contingency consideration 195 571 $ 30,672 $ 36,626 Other (expense) income, net consisted of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Foreign currency transaction (losses) gains $ (675 ) $ 207 $ (262 ) Equity in losses of affiliates (2,370 ) (741 ) (844 ) Other 62 (7 ) 19 $ (2,983 ) $ (541 ) $ (1,087 )

Note 6 - Receivables

Note 6 - Receivables	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Financing Receivables [Text Block]	Note 6. 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 $3,942 and $2,828 at May 1, 2021 May 2, 2020 May 1, 2021 May 2, 2020 one In some contracts with customers, we agree to installment payments exceeding 12 May 1, 2021 May 2, 2020 November 2025 May 1, 2021 May 2, 2020

Note 7 - Financing Agreements

Note 7 - Financing Agreements	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 7. On March 11, 2021, seven November 15, 2019 , November 15, 2019 November 15, 2022 August 28, 2020, third third 2.5, May 1, 2021 no May 1, 2021 We are sometimes required to obtain bank guarantees or other financial instruments for display installations. If we are unable to meet the terms of the arrangement, our customer would draw on the banking arrangement, and the bank would subrogate its loss to Daktronics. As of May 1, 2021 As of May 1, 2021

Note 8 - Share Repurchase Progr

Note 8 - Share Repurchase Program	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Treasury Stock [Text Block]	Note 8. On June 17, 2016, may may not may During fiscal 2021 2019 no 2020 May 1, 2021 As part of our COVID- 19 April 1, 2020,

Note 9 - Leases

Note 9 - Leases	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	Note 9. 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 five not not We determine if an arrangement is a lease at the inception of the lease. Leases with an initial term of 12 not not Operating lease cost is recognized on a straight-line basis over the lease term, and short-term lease cost is recognized when paid. During fiscal 2021 2020 As of May 1, 2021 4.7 May 2, 2020 Supplemental unaudited cash flow information related to operating leases include: Year Ended May 1, 2021 May 2, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 2,752 $ 3,340 Future minimum operating lease payments as of, and subsequent to, May 1, 2021 842 Operating Leases(1) Fiscal years ending 2022 $ 2,061 2023 1,282 2024 1,168 2025 958 2026 800 Thereafter 667 Total lease payments 6,936 Less imputed interest (530 ) Total lease liabilities $ 6,406 ( 1

Note 10 - Shareholders' Equity

Note 10 - Shareholders' Equity and Share-Based Compensation	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	Note 10. Common stock Each outstanding share of our common stock includes one one one one November 19, 2021, may Stock incentive plans 2021 2020 “2020 2015 "2015 2020 2015 2020 five seven one one five At May 1, 2021 2020 2,868 2020 one 2015 2015 no 2015 Restricted stock and restricted stock units 718, May 1, 2021 2021 2020 2019 A summary of non-vested restricted stock and restricted stock units for fiscal years 2021 2020 2019 Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Outstanding at beginning of year 449 $ 7.16 444 $ 7.58 437 $ 8.48 Granted 223 3.92 186 7.03 181 6.79 Vested (176 ) 7.27 (173 ) 8.10 (169 ) 9.05 Forfeited (16 ) 7.00 (8 ) 7.37 (5 ) 7.74 Outstanding at end of year 480 $ 5.62 449 $ 7.16 444 $ 7.58 Stock Options 2015 2020 May 1, 2021 Stock Options Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value Outstanding at May 2, 2020 2,121 $ 9.96 4.38 $ — Granted 412 4.11 — — Canceled or forfeited (306 ) 12.48 — — Outstanding at May 1, 2021 2,227 $ 8.53 4.83 $ 843.00 Shares vested and expected to vest 2,190 $ 8.58 4.76 $ 792.00 Exercisable at May 1, 2021 1,478 $ 9.83 3.00 $ — The aggregate intrinsic value of stock options represents the difference between the exercise price of stock options and the fair market value of the underlying common stock for all in-the-money options. We define in-the-money options at May 1, 2021 May 1, 2021 2021 2020 2019 2021 2020 2019 We estimate the fair value of stock options granted using the Black-Scholes option valuation model. We recognize the fair value of the stock options on a straight-line basis as compensation expense. All options are recognized over the requisite service periods of the awards, which are generally the vesting periods. The Black-Scholes option-pricing model was developed for use in estimating the fair value of traded options which have no 718 Expected life no Expected volatility 718 No. 107, Share-Based Payments Risk-free interest rate. zero Dividend yield. The following table provides the weighted-average fair value of options granted and the related assumptions used in the Black-Scholes model: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Fair value of options granted $ 1.71 $ 1.99 $ 2.16 Risk-free interest rate 43.00 % 1.51 % 2.83 % Expected dividend rate — % 3.50 % 3.37 % Expected volatility 40.53 % 37.55 % 38.58 % Expected life of option (in years) 6.94 6.94 6.83 Employee stock purchase plan six first one 2021 2020 2019 May 1, 2021 423 1986 Total share-based compensation expense May 1, 2021 The following table presents a summary of the share-based compensation expense by equity type as follows: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Stock options $ 450 $ 492 $ 593 Restricted stock and stock units 1,203 1,341 1,446 Employee stock purchase plans 414 432 440 $ 2,067 $ 2,265 $ 2,479 A summary of the share-based compensation expense for stock options, restricted stock, restricted stock units and shares issued under the ESPP for fiscal years 2021 2020 2019 Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Cost of sales $ 472 $ 514 $ 578 Selling 484 572 625 General and administrative 678 717 772 Product design and development 433 462 504 $ 2,067 $ 2,265 $ 2,479 We received $0 in cash from option exercises under all share-based payment arrangements for the fiscal year ended May 1, 2021 2021 2020 2019

Note 11 - Retirement Benefits

Note 11 - Retirement Benefits	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Retirement Benefits [Text Block]	Note 11. We sponsor a 401 six one 2021. 2022. 401 three 21. 2021 2020 2019

Note 12 - Income Taxes

Note 12 - Income Taxes	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 12. The following tables reflect the significant components of our income tax provision. The pretax income attributable to domestic and foreign operations was as follows: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Domestic $ 10,413 $ (4,187 ) $ (8,402 ) Foreign 3,647 4,178 3,458 Income (loss) before income taxes $ 14,060 $ (9 ) $ (4,944 ) Income tax expense (benefit) consisted of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Current: Federal $ 507 $ 625 $ (2,142 ) State 422 297 384 Foreign 891 761 1,151 Deferred: Federal 1,216 (2,028 ) (2,725 ) State 59 (321 ) (390 ) Foreign 39 166 (264 ) $ 3,134 $ (500 ) $ (3,986 ) The reconciliation of the provision (benefit) for income taxes and the amount computed by applying the federal statutory rate to income (loss) before income taxes is as follows: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Computed income tax expense (benefit) at federal statutory rates $ 2,953 $ (2 ) $ (1,038 ) Change in uncertain tax positions (34 ) 4 (2,600 ) Research and development tax credit (1,047 ) (1,621 ) (1,278 ) Other, net 403 (241 ) 587 Change in valuation allowances 402 482 (471 ) GILTI (156 ) 149 391 Base Erosion Anti-Abuse Tax (BEAT) (285 ) 301 — Stock compensation 355 318 308 Meals and entertainment 49 305 248 Dividends paid to retirement plan — (111 ) (158 ) State taxes, net of federal benefit 494 (84 ) 25 $ 3,134 $ (500 ) $ (3,986 ) The effective income tax rate for fiscal 2021 During fiscal 2020 During fiscal 2019 The components of the net deferred tax assets were as follows: May 1, 2021 May 2, 2020 Deferred tax assets: Accrued warranty obligations $ 6,293 $ 6,202 Vacation accrual 1,222 1,753 Deferred maintenance revenue 398 987 Allowance for excess and obsolete inventory 1,776 1,318 Legal reserve — 503 Equity compensation 324 396 Allowance for doubtful accounts 829 546 Inventory capitalization 583 822 Accrued compensation and benefits 1,707 539 Unrealized loss on foreign currency exchange 85 — Net operating loss carry forwards 856 919 Research and development tax credit carry forwards 516 1,975 Lease accounting - lease liability 1,572 2,099 Other 1,513 1,035 Total deferred tax assets 17,674 19,094 Valuation allowance (1,732 ) (1,189 ) Net deferred tax assets 15,942 17,905 Deferred tax liabilities: Property and equipment (2,373 ) (2,141 ) Lease accounting - right of use asset (1,580 ) (2,103 ) Prepaid expenses (337 ) (440 ) Intangible assets (69 ) (317 ) Unrealized gain on foreign currency exchange — (17 ) Other (49 ) (68 ) Total deferred tax liabilities (4,408 ) (5,086 ) Net deferred tax asset $ 11,534 $ 12,819 The classification of the net deferred tax assets in the accompanying consolidated balance sheets is: May 1, 2021 May 2, 2020 Non-current assets $ 11,944 $ 13,271 Non-current liabilities (410 ) (452 ) $ 11,534 $ 12,819 The summary of changes in the amounts related to unrecognized uncertain tax benefits are: May 1, 2021 May 2, 2020 Balance at beginning of year $ 582 $ 578 Gross increases related to prior period tax positions 21 17 Gross decreases related to prior period tax positions (1 ) (2 ) Gross increases related to current period tax positions 84 148 Lapse of statute of limitations (138 ) (159 ) Balance at end of year $ 548 $ 582 All of our unrecognized tax benefits would have an impact on the effective tax rate if recognized. It is reasonably possible that the amount of unrecognized tax benefits could change due to one 12 12 no 2021 Interest and penalties incurred associated with uncertain tax positions are included in the "Income tax expense" line item in our consolidated statements of operations. Accrued interest and penalties are included in the related tax liability line item in our consolidated balance sheets of $38 and $30 as of May 1, 2021 May 2, 2020 As of May 1, 2021 not Additional tax information: We are subject to U.S. federal income tax as well as income taxes of multiple state and foreign jurisdictions. Fiscal years 2018, 2019 2020 2017, 2018, 2019 2020 2010. As of May 1, 2021 2017 No not one On March 27, 2020, 19 2018, 2019, 2020 2019, 2020, 2021 five 2021 December 27, 2020 2021 March 11, 2021, not

Note 13 - Cash Flow Information

Note 13 - Cash Flow Information	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	Note 13. The changes in operating assets and liabilities consisted of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 (Increase) decrease: Account receivable $ 4,864 $ (7,461 ) $ 10,856 Long-term receivables 1,737 (1,173 ) 329 Inventories 13,900 (8,347 ) (4,076 ) Contract assets 3,080 (1,931 ) (3,040 ) Prepaid expenses and other current assets 2,450 (1,403 ) 472 Income taxes receivables (148 ) 533 4,250 Investment in affiliates and other assets 744 (3,137 ) 48 Increase (decrease): Accounts payable (7,081 ) 2,377 (2,747 ) Contract liabilities 12,628 4,548 10,774 Accrued expenses (2,936 ) 6,745 4,631 Warranty obligations 696 273 (4,393 ) Long-term warranty obligations (367 ) 883 (1,079 ) Income taxes payable (173 ) 390 (3,023 ) Long-term marketing obligations and other payables 2,337 (387 ) (1,116 ) $ 31,731 $ (8,090 ) $ 11,886 Supplemental disclosures of cash flow information consisted of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Cash payments for: Interest $ 264 $ 46 $ 177 Income taxes, net of refunds 2,557 977 (1,934 ) Supplemental schedule of non-cash investing and financing activities consisted of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Demonstration equipment transferred to inventory $ 56 $ 10 $ 97 Purchases of property and equipment included in accounts payable 667 1,951 1,106 Contributions of common stock under the ESPP 565 2,311 1,650

Note 14 - Fair Value Measuremen

Note 14 - Fair Value Measurement	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 14. ASC 820, Fair Value Measurement, 820 three may Level 1 Level 2 1 not Level 3 no The fair values for fixed-rate long-term receivables are estimated using a discounted cash flow analysis based on interest rates currently being offered for contracts with similar terms to customers with similar credit quality. The carrying amounts reported in our consolidated balance sheets for long-term receivables approximate fair value and have been categorized as a Level 2 2 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 May 1, 2021 May 2, 2020 no Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of May 1, 2021: Cash and cash equivalents $ 77,590 $ — $ — $ 77,590 Restricted cash 2,812 — — 2,812 Derivatives - asset position — 4 — 4 Derivatives - liability position — (261 ) — (261 ) Acquisition-related contingent consideration — — (363 ) (363 ) $ 80,402 $ (257 ) $ (363 ) $ 79,782 Balance as of May 2, 2020: Cash and cash equivalents $ 40,398 $ — $ — $ 40,398 Restricted cash 14 — — 14 Available-for-sale securities: Certificates of deposit — 1,230 — 1,230 Derivatives - asset position — 261 — 261 Derivatives - liability position — (17 ) — (17 ) Acquisition-related contingent consideration — — (761 ) (761 ) $ 40,412 $ 1,474 $ (761 ) $ 41,125 A roll forward of the Level 3 May 1, 2021 Acquisition-related contingent consideration as of May 2, 2020 $ 761 Additions 183 Settlements (600 ) Interest 19 Acquisition-related contingent consideration as of May 1, 2021 $ 363 The following methods and assumptions were used to estimate the fair value of each class of financial instrument. There have been no Cash and cash equivalents Restricted cash Certificates of deposit three 1 third Derivatives – currency forward contracts third 15. Contingent liabilities May 1, 2021 May 2, 2020 Non-recurring measurements: Other measurements using fair value

Note 15 - Derivative Financial

Note 15 - Derivative Financial Instruments	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Note 15. 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 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 May 1, 2021 May 2, 2020 not The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at May 1, 2021 May 2, 2020 May 1, 2021 May 2, 2020 U.S. Dollars Foreign Currency U.S. Dollars Foreign Currency Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 2,410 3,464 2,235 3,323 U.S. Dollars/Canadian Dollars — — 452 648 U.S. Dollars/British Pounds 418 300 3,160 2,424 U.S. Dollars/Euros — — 1,881 1,689 As of May 1, 2021 May 2, 2020 2 third May 1, 2021 eight

Note 16 - Commitments and Conti

Note 16 - Commitments and Contingencies	12 Months Ended
	May 01, 2021
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 16. Litigation: not not 450 20, Contingencies - Loss Contingencies As of May 2, 2020 2021 , no 2021 . For other unresolved legal proceedings or claims, we do not no not Warranties: See "Note 1. Changes in our warranty obligation for the fiscal years ended May 1, 2021 May 2, 2020 May 1, 2021 May 2, 2020 Beginning accrued warranty obligations $ 25,624 $ 24,470 Warranties issued during the period 8,539 10,629 Settlements made during the period (5,718 ) (9,209 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations (2,485 ) (266 ) Ending accrued warranty obligations $ 25,960 $ 25,624 Performance guarantees: May 1, 2021 one May 1, 2021 not Purchase commitments: one May 1, 2021 Fiscal years ending Amount 2022 $ 3,102 2023 1,825 2024 148 2025 113 2026 40 $ 5,228

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	May 01, 2021
Accounting Policies [Abstract]
Nature of Business [Policy Text Block]	Nature of business
Fiscal Period, Policy [Policy Text Block]	Fiscal year 52 53 April 30 April 30 13 53 first three 13 May 1, 2021 April 27, 2019 52 May 2, 2020 53
Consolidation, Policy [Policy Text Block]	Principles of consolidation
Investment, Policy [Policy Text Block]	Investments in affiliates 323, Investments - Equity Method and Joint Ventures not 321, Investments - Equity Securities not may not During the fourth 2020, X 1 fourth 2021, The aggregate amount of investments accounted for under the equity method was $19,887 and $17,257 at May 1, 2021 May 2, 2020 2021 2020 2019 2021 2020 2019 Summarized financial information for equity method investments consist of the following: Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Balance sheet data: Current assets $ 7,534 $ 10,593 $ 192 Non-current assets 4,637 4,266 2,626 Current liabilities 2,807 2,755 839 Non-current liabilities 1,793 4,086 2,599 Income statement data: Net loss (13,436 ) (1,383 ) (2,168 )
Use of Estimates, Policy [Policy Text Block]	Use of estimates may
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and cash equivalents three may not
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Restricted cash The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the totals of the same amounts shown in the consolidated statement of cash flows: May 1, 2021 May 2, 2020 April 27, 2019 Cash and cash equivalents $ 77,590 $ 40,398 $ 35,383 Restricted cash 2,812 14 359 Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows $ 80,402 $ 40,412 $ 35,742
Inventory, Policy [Policy Text Block]	Inventories: 330, Inventory, first first
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]	Allowance for doubtful accounts: may not 310, Receivables
Revenue from Contract with Customer [Policy Text Block]	Revenue recognition 606, Revenue from Contracts with Customers, Contracts are identified and follow the revenue recognition policies when all of the following occur: we have evidence that all parties to the contract have approved the contract and are committed to perform their respective obligations, we can identify each party’s rights regarding the goods or services to be transferred, we can identify the payment terms for the goods or services to be transferred, the contract has commercial substance, and it is probable we will collect substantially all of the consideration to which we would be entitled in exchange for the goods or services. Pre-contract costs are generally expensed as incurred, unless they are directly associated with an anticipated contract and recoverability from that contract is probable. Pre-contract costs directly associated with anticipated contracts expected to be recoverable include $492 and $1,582 as of May 1, 2021 May 2, 2020 At contract inception, we identify performance obligations by reviewing the agreement for material distinct goods and services. Goods and services are distinct when the customer can benefit from them on its own and our promises to transfer these items are identifiable from other promises within the contract. When we are contracted to provide a single promise (an integrated system), we often treat it as a single performance obligation if we are providing goods and services with the same pattern of transfer that are highly integrated or interdependent, that are modified or customized by other goods or services promised, or that provide a combined outcome for which the customer has contracted. When less interdependency or integration is necessary, or when the customer can benefit from distinct items, we separate the contract into multiple performance obligations. We account for extended warranties and other services ("service-type warranties") that represent a distinct service as a separate performance obligation. Our contracts can contain multiple components of transaction price. We evaluate each contract for these components and include fixed consideration, variable consideration, financing components, and non-cash consideration and exclude consideration payable to a customer and sales taxes in the transaction price. When we are responsible for site installations which include subcontracted work, we maintain the contractual responsibilities and risks and include the consideration for these services in the transaction price. When our contract contains variable consideration, including return rights, discounts, claims, unpriced change orders, and liquidated damages, we estimate the transaction price using the expected value (i.e., the sum of the probability-weighted amount) or the most likely amount method, whichever is expected to better predict revenue for that contract situation. We also constrain the revenue to the extent that it is probable that a significant reversal of the amount of cumulative revenue recognized will not one not 6. When separate performance obligations are identified, we allocate the transaction price to the individual performance obligation based on the best method we judge as faithfully depicting the value of the performance obligation. Many of our contracts are bundled, and we do not Revenue is recognized when we satisfy a performance obligation. We receive payments from customers based on a billing schedule as established in our contracts. Billing schedules include down payments and progress billings over time; set milestone payments that are specific to the project are scheduled for performance-based payments or are set time-based payment(s). Variability in contract assets and contract liabilities relates to the timing of billings and revenue recognition, which can vary significantly depending on contractual payment terms, build and installation schedules and the related timing differences in transfer of control. Balances are also impacted by the seasonality in our business. Significant judgments and estimates are used in our revenue policies. Throughout the revenue cycle, we evaluate contractual evidence, monitor our performance, evaluate variable consideration changes, update estimated costs to complete cost-to-cost projects, and obtain evidence of deliveries or other control change evidence for appropriate and consistent revenue recognition. We maintain internal policies and procedures to provide guidance for those involved in recording revenue. We monitor for changes in our business sales practices and customer interactions to capture the appropriate types of performance obligations and adjust for any change in control terms and conditions. Our material performance obligation types include: Unique configuration contracts may We may Revenue for uniquely configured (custom) or integrated systems is recognized over time using the cost incurred input method. Over time revenue recognition is appropriate because we have no Contract modifications to existing contracts with customers are evaluated in accordance with the five not may The time between contract order and project completion is typically less than 12 may Limited configuration (standard systems) and after-sale parts contracts no not one may Revenue is recognized at a point in time when control passes, or over time as services are performed. When fulfilling limited configuration performance obligations, we are typically able to redirect the video displays or scoring, messaging, or audio equipment to another customer without incurring significant economic losses. Therefore, we have an alternative use for the performance obligation and recognize revenue upon our substantial completion and at the point in time we estimate control has transferred to the customer. When limited configured single performance obligations are more service-type (i.e., installation and integration services), we recognize revenue over time using the cost-to-cost input method, which is the most faithful depiction of the customer obtaining control and benefits from the work performed. Services and other Software: Shipping and handling costs: Warranty: one five one 10 may
Revenue Recognition, Long-term Receivables and Advertising Rights [Policy Text Block]	Long-term receivables and advertising rights:
Property, Plant and Equipment, Impairment [Policy Text Block]	Property and equipment 360, Property, Plant, and Equipment, Years Buildings and improvements 5 - 40 Machinery and equipment 5 - 7 Office furniture and equipment 3 - 5 Computer software and hardware 3 - 5 Equipment held for rental 2 - 7 Demonstration equipment 3 - 5 Transportation equipment 5 - 7 Leasehold improvements are depreciated over the lesser of the useful life of the asset or the term of the lease. Property and equipment held for sale: 360, Property, Plant, and Equipment, no
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets 360, Property, Plant, and Equipment may not When evaluating long-lived assets for potential impairment, we first Our impairment loss calculations contain uncertainties because they require management to make assumptions and to apply judgment to estimate future cash flows and asset fair values, including forecasting useful lives of the assets and selecting the discount rate that reflects the risk inherent in future cash flows.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Intangible Assets 350, Goodwill and Other. not may not 0 first not not If a quantitative analysis is performed, we utilize an income approach to estimate the fair value of each reporting unit. We selected this method because we believe it most appropriately measures our income producing assets. We considered using the market approach and cost approach, but concluded they were not Goodwill was not 2021
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign currency translation 830, Foreign Currency Matters.
Income Tax, Policy [Policy Text Block]	Income taxes 740, Income Taxes not not In addition, because we operate in multiple income tax jurisdictions both within the United States and internationally, the calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws. Resolution of these uncertainties in a manner inconsistent with our expectations could have a material impact on our financial condition and operating results. See "Note 12.
Comprehensive Income, Policy [Policy Text Block]	Comprehensive income (loss) 220, Reporting Comprehensive Income not
Research and Development Expense, Policy [Policy Text Block]	Product design and development 730, Research and Development
Advertising Cost [Policy Text Block]	Advertising costs 720 35, Advertising Costs 2021 2020 2019
Earnings Per Share, Policy [Policy Text Block]	Earnings per share (“EPS”) 260, Earnings Per Share, may The following is a reconciliation of the net income (loss) and common share amounts used in the calculation of basic and diluted EPS for the fiscal years ended May 1, 2021 May 2, 2020 April 27, 2019 Net income (loss) Shares Per share income (loss) For the year ended May 1, 2021: Basic earnings per share $ 10,926 44,989 $ 0.24 Dilution associated with stock compensation plans — 213 — Diluted earnings per share $ 10,926 45,202 $ 0.24 For the year ended May 2, 2020: Basic earnings per share $ 491 45,031 $ 0.01 Dilution associated with stock compensation plans — 285 — Diluted earnings per share $ 491 45,316 $ 0.01 For the year ended April 27, 2019: Basic loss per share $ (958 ) 44,926 $ (0.02 ) Dilution associated with stock compensation plans — — — Diluted loss per share $ (958 ) 44,926 $ (0.02 ) Options outstanding to purchase 2,262, 2,198 and 2,304 shares of common stock with a weighted average exercise price of $9.11, $9.95 and $9.99 for the fiscal years ended May 1, 2021 May 2, 2020 April 27, 2019 not
Share-based Payment Arrangement [Policy Text Block]	Share-based compensation 718, Compensation-Stock Compensation. 718, 10.
Other Business Developments Coronavirus Pandemic, Policy [Policy Text Block]	Other Business Developments - Coronavirus Pandemic During fiscal 2021 19" 2021, April 1, 2020, 2021 , A special voluntary retirement and voluntary exit incentive program ("Offering") and two 2021 19 first 2021, first 2021 first 2021 $2,742 second 2021 We received governmental wage subsidies from various governmental programs related to COVID- 19 2021 December 31, 2020 . May 1, 2021 50 December 31, 2021, 50 December 31, 2022 .
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements Accounting Standards Adopted In February 2016, 2016 02, Leases (Topic 842 2016 02 not 12 2016 02 July 2018, 2018 10, Codification Improvements to Topic 842 2018 11, Leases (Topic 842 We adopted ASU 2016 02 first 2020 April 28, 2019. 840 not 840. not not one not not no April 28, 2019, 9. In January 2017, 2017 04, 350 second two not 2017 04 first 2021 not In June 2016 , 2016 03 , Measurement of Credit Losses on Financial Instruments, 2016 03 2016 03 2016 03 first 2021 not We estimate an allowance for doubtful accounts using a loss rate method. We measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable supportable forecasts. A reconciliation of the beginning and ending allowance for doubtful accounts is as follows: Allowance for Doubtful Accounts: Balance as of May 2, 2020 $ 2,828 Charged to costs and expenses 3,318 Deductions (1) (2,204 ) Balance as of May 1, 2021 $ 3,942 ( 1 Accounting Standards Not There are no not May 1, 2021

Note 1 - Nature of Business a_2

Note 1 - Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Equity Method Investments [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Balance sheet data: Current assets $ 7,534 $ 10,593 $ 192 Non-current assets 4,637 4,266 2,626 Current liabilities 2,807 2,755 839 Non-current liabilities 1,793 4,086 2,599 Income statement data: Net loss (13,436 ) (1,383 ) (2,168 )
Schedule of Cash and Cash Equivalents [Table Text Block]	May 1, 2021 May 2, 2020 April 27, 2019 Cash and cash equivalents $ 77,590 $ 40,398 $ 35,383 Restricted cash 2,812 14 359 Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows $ 80,402 $ 40,412 $ 35,742
Property, Plant and Equipment, Estimated Useful Life [Table Text Block]	Years Buildings and improvements 5 - 40 Machinery and equipment 5 - 7 Office furniture and equipment 3 - 5 Computer software and hardware 3 - 5 Equipment held for rental 2 - 7 Demonstration equipment 3 - 5 Transportation equipment 5 - 7
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Net income (loss) Shares Per share income (loss) For the year ended May 1, 2021: Basic earnings per share $ 10,926 44,989 $ 0.24 Dilution associated with stock compensation plans — 213 — Diluted earnings per share $ 10,926 45,202 $ 0.24 For the year ended May 2, 2020: Basic earnings per share $ 491 45,031 $ 0.01 Dilution associated with stock compensation plans — 285 — Diluted earnings per share $ 491 45,316 $ 0.01 For the year ended April 27, 2019: Basic loss per share $ (958 ) 44,926 $ (0.02 ) Dilution associated with stock compensation plans — — — Diluted loss per share $ (958 ) 44,926 $ (0.02 )
Accounts Receivable, Allowance for Credit Loss [Table Text Block]	Allowance for Doubtful Accounts: Balance as of May 2, 2020 $ 2,828 Charged to costs and expenses 3,318 Deductions (1) (2,204 ) Balance as of May 1, 2021 $ 3,942

Note 2 - Revenue Recognition (T

Note 2 - Revenue Recognition (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Disaggregation of Revenue [Table Text Block]	Fiscal Year 2021 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 16,535 $ 104,682 $ 22,258 $ 36,398 $ 22,266 $ 202,139 Limited configuration 96,420 18,679 66,697 19,690 32,583 234,069 Service and other 14,345 19,688 2,602 2,196 6,994 45,825 $ 127,300 $ 143,049 $ 91,557 $ 58,284 $ 61,843 $ 482,033 Timing of revenue recognition Goods/services transferred at a point in time $ 98,243 $ 23,906 $ 60,859 $ 20,180 $ 34,388 $ 237,576 Goods/services transferred over time 29,057 119,143 30,698 38,104 27,455 244,457 $ 127,300 $ 143,049 $ 91,557 $ 58,284 $ 61,843 $ 482,033 Fiscal Year 2020 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 35,212 $ 140,044 $ 19,176 $ 43,519 $ 40,454 $ 278,405 Limited configuration 102,847 31,897 74,266 24,588 45,626 279,224 Service and other 14,568 24,650 2,972 2,032 7,081 51,303 $ 152,627 $ 196,591 $ 96,414 $ 70,139 $ 93,161 $ 608,932 Timing of revenue recognition Goods/services transferred at a point in time $ 105,096 $ 39,521 $ 68,582 $ 25,157 $ 47,345 $ 285,701 Goods/services transferred over time 47,531 157,070 27,832 44,982 45,816 323,231 $ 152,627 $ 196,591 $ 96,414 $ 70,139 $ 93,161 $ 608,932 Fiscal Year 2019 Commercial Live Events High School Park and Recreation Transportation International Total Type of performance obligation Unique configuration $ 25,171 $ 119,569 $ 21,792 $ 38,490 $ 44,989 $ 250,011 Limited configuration 108,921 30,107 66,825 23,799 42,134 271,786 Service and other 14,741 21,276 2,570 2,102 7,218 47,907 $ 148,833 $ 170,952 $ 91,187 $ 64,391 $ 94,341 $ 569,704 Timing of revenue recognition Goods/services transferred at a point in time $ 111,617 $ 35,313 $ 60,763 $ 24,500 $ 44,758 $ 276,951 Goods/services transferred over time 37,216 135,639 30,424 39,891 49,583 292,753 $ 148,833 $ 170,952 $ 91,187 $ 64,391 $ 94,341 $ 569,704
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	May 1, 2021 May 2, 2020 Contract assets $ 32,799 $ 35,467 Contract liabilities - current 64,495 50,897 Contract liabilities - non-current 10,720 10,707 May 1, 2021 May 2, 2020 Balance at beginning of year $ 24,490 $ 24,939 New contracts sold 35,623 41,169 Less: reductions for revenue recognized (36,723 ) (41,167 ) Foreign currency translation and other 1,200 (451 ) Balance at end of year $ 24,590 $ 24,490

Note 3 - Segment Reporting (Tab

Note 3 - Segment Reporting (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Net sales: Commercial $ 127,300 $ 152,627 $ 148,833 Live Events 143,049 196,591 170,952 High School Park and Recreation 91,557 96,414 91,187 Transportation 58,284 70,139 64,391 International 61,843 93,161 94,341 Total company net sales 482,033 608,932 569,704 Gross profit: Commercial 33,072 29,246 31,785 Live Events 24,397 39,518 32,164 High School Park and Recreation 31,472 28,874 26,858 Transportation 20,329 23,910 22,525 International 11,313 17,152 16,962 120,583 138,700 130,294 Operating expenses Selling 48,649 65,902 64,648 General and administrative 27,980 35,193 34,817 Product design and development 26,846 37,772 35,557 103,475 138,867 135,022 Operating income (loss) 17,108 (167 ) (4,728 ) Nonoperating income (expense): Interest income 230 805 1,031 Interest expense (295 ) (106 ) (160 ) Other (expense) income, net (2,983 ) (541 ) (1,087 ) Income (loss) before income taxes $ 14,060 $ (9 ) $ (4,944 ) Depreciation and amortization: Commercial $ 3,037 $ 3,682 $ 4,795 Live Events 5,798 5,605 5,194 High School Park and Recreation 1,942 2,025 1,965 Transportation 979 1,029 1,102 International 2,887 2,460 2,829 Unallocated corporate depreciation 2,434 2,917 2,750 $ 17,077 $ 17,718 $ 18,635
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Net sales: United States $ 413,211 $ 504,931 $ 460,099 Outside United States 68,822 104,001 109,605 $ 482,033 $ 608,932 $ 569,704 Property and equipment, net of accumulated depreciation: United States $ 50,130 $ 58,422 $ 59,192 Outside United States 8,552 9,062 6,122 $ 58,682 $ 67,484 $ 65,314

Note 4 - Goodwill and Intangi_2

Note 4 - Goodwill and Intangible Assets (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Goodwill [Table Text Block]	Live Events Commercial Transportation International Total Balance as of May 2, 2020: $ 2,266 $ 3,144 $ 38 $ 2,295 $ 7,743 Foreign currency translation 47 320 46 258 671 Balance as of May 1, 2021: $ 2,313 $ 3,464 $ 84 $ 2,553 $ 8,414
Schedule of Finite-Lived Intangible Assets [Table Text Block]	May 1, 2021 Weighted Average Life (in years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Registered trademarks 19.4 $ 738 $ 246 $ 492 Software 3.0 6,606 6,412 194 Customer relationships 10.0 2,984 1,588 1,396 Other 1.5 132 131 1 Total amortized intangible assets 6.1 $ 10,460 $ 8,377 $ 2,083 May 2, 2020 Weighted Average Life (in years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Registered trademarks 19.4 $ 663 $ 183 $ 480 Software 3.0 6,247 4,890 1,357 Customer relationships 10.0 2,641 1,135 1,506 Other 1.5 120 109 11 Total amortized intangible assets 6.0 $ 9,671 $ 6,317 $ 3,354
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal years ending Amount 2022 $ 512 2023 316 2024 316 2025 316 2026 281 Thereafter 342 Total expected amortization expense $ 2,083

Note 5 - Selected Financial S_2

Note 5 - Selected Financial Statement Data (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Inventory, Current [Table Text Block]	May 1, 2021 May 2, 2020 Raw materials $ 29,913 $ 35,306 Work-in-process 9,948 12,102 Finished goods 34,495 39,395 $ 74,356 $ 86,803
Property, Plant and Equipment [Table Text Block]	May 1, 2021 May 2, 2020 Land $ 1,924 $ 2,183 Buildings 69,608 68,804 Machinery and equipment 98,451 104,157 Office furniture and equipment 4,103 6,151 Computer software and hardware 44,851 53,441 Equipment held for rental — 287 Demonstration equipment 7,186 8,473 Transportation equipment 7,264 7,944 233,387 251,440 Less accumulated depreciation 174,705 183,956 $ 58,682 $ 67,484
Schedule of Accrued Liabilities [Table Text Block]	May 1, 2021 May 2, 2020 Compensation $ 13,079 $ 15,967 Taxes, other than income taxes 5,888 3,597 Accrued employee benefits 2,174 2,243 Operating lease liabilities 1,881 2,416 Short-term accrued expenses 7,455 9,270 Claims liabilities — 2,562 Acquisition-related contingency consideration 195 571 $ 30,672 $ 36,626
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Foreign currency transaction (losses) gains $ (675 ) $ 207 $ (262 ) Equity in losses of affiliates (2,370 ) (741 ) (844 ) Other 62 (7 ) 19 $ (2,983 ) $ (541 ) $ (1,087 )

Note 9 - Leases (Tables)

Note 9 - Leases (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Lessee, Operating Lease, Disclosure [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 2,752 $ 3,340
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Operating Leases(1) Fiscal years ending 2022 $ 2,061 2023 1,282 2024 1,168 2025 958 2026 800 Thereafter 667 Total lease payments 6,936 Less imputed interest (530 ) Total lease liabilities $ 6,406

Note 10 - Shareholders' Equit_2

Note 10 - Shareholders' Equity and Share-Based Compensation (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Nonvested Restricted Stock and Restricted Stock Units Activity [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Number of Nonvested Shares Weighted Average Grant Date Fair Value Per Share Outstanding at beginning of year 449 $ 7.16 444 $ 7.58 437 $ 8.48 Granted 223 3.92 186 7.03 181 6.79 Vested (176 ) 7.27 (173 ) 8.10 (169 ) 9.05 Forfeited (16 ) 7.00 (8 ) 7.37 (5 ) 7.74 Outstanding at end of year 480 $ 5.62 449 $ 7.16 444 $ 7.58
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Stock Options Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value Outstanding at May 2, 2020 2,121 $ 9.96 4.38 $ — Granted 412 4.11 — — Canceled or forfeited (306 ) 12.48 — — Outstanding at May 1, 2021 2,227 $ 8.53 4.83 $ 843.00 Shares vested and expected to vest 2,190 $ 8.58 4.76 $ 792.00 Exercisable at May 1, 2021 1,478 $ 9.83 3.00 $ —
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Fair value of options granted $ 1.71 $ 1.99 $ 2.16 Risk-free interest rate 43.00 % 1.51 % 2.83 % Expected dividend rate — % 3.50 % 3.37 % Expected volatility 40.53 % 37.55 % 38.58 % Expected life of option (in years) 6.94 6.94 6.83
Share-based Payment Arrangement, Cost by Plan [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Stock options $ 450 $ 492 $ 593 Restricted stock and stock units 1,203 1,341 1,446 Employee stock purchase plans 414 432 440 $ 2,067 $ 2,265 $ 2,479 Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Cost of sales $ 472 $ 514 $ 578 Selling 484 572 625 General and administrative 678 717 772 Product design and development 433 462 504 $ 2,067 $ 2,265 $ 2,479

Note 12 - Income Taxes (Tables)

Note 12 - Income Taxes (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Domestic $ 10,413 $ (4,187 ) $ (8,402 ) Foreign 3,647 4,178 3,458 Income (loss) before income taxes $ 14,060 $ (9 ) $ (4,944 )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Current: Federal $ 507 $ 625 $ (2,142 ) State 422 297 384 Foreign 891 761 1,151 Deferred: Federal 1,216 (2,028 ) (2,725 ) State 59 (321 ) (390 ) Foreign 39 166 (264 ) $ 3,134 $ (500 ) $ (3,986 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Computed income tax expense (benefit) at federal statutory rates $ 2,953 $ (2 ) $ (1,038 ) Change in uncertain tax positions (34 ) 4 (2,600 ) Research and development tax credit (1,047 ) (1,621 ) (1,278 ) Other, net 403 (241 ) 587 Change in valuation allowances 402 482 (471 ) GILTI (156 ) 149 391 Base Erosion Anti-Abuse Tax (BEAT) (285 ) 301 — Stock compensation 355 318 308 Meals and entertainment 49 305 248 Dividends paid to retirement plan — (111 ) (158 ) State taxes, net of federal benefit 494 (84 ) 25 $ 3,134 $ (500 ) $ (3,986 )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	May 1, 2021 May 2, 2020 Deferred tax assets: Accrued warranty obligations $ 6,293 $ 6,202 Vacation accrual 1,222 1,753 Deferred maintenance revenue 398 987 Allowance for excess and obsolete inventory 1,776 1,318 Legal reserve — 503 Equity compensation 324 396 Allowance for doubtful accounts 829 546 Inventory capitalization 583 822 Accrued compensation and benefits 1,707 539 Unrealized loss on foreign currency exchange 85 — Net operating loss carry forwards 856 919 Research and development tax credit carry forwards 516 1,975 Lease accounting - lease liability 1,572 2,099 Other 1,513 1,035 Total deferred tax assets 17,674 19,094 Valuation allowance (1,732 ) (1,189 ) Net deferred tax assets 15,942 17,905 Deferred tax liabilities: Property and equipment (2,373 ) (2,141 ) Lease accounting - right of use asset (1,580 ) (2,103 ) Prepaid expenses (337 ) (440 ) Intangible assets (69 ) (317 ) Unrealized gain on foreign currency exchange — (17 ) Other (49 ) (68 ) Total deferred tax liabilities (4,408 ) (5,086 ) Net deferred tax asset $ 11,534 $ 12,819 May 1, 2021 May 2, 2020 Non-current assets $ 11,944 $ 13,271 Non-current liabilities (410 ) (452 ) $ 11,534 $ 12,819
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	May 1, 2021 May 2, 2020 Balance at beginning of year $ 582 $ 578 Gross increases related to prior period tax positions 21 17 Gross decreases related to prior period tax positions (1 ) (2 ) Gross increases related to current period tax positions 84 148 Lapse of statute of limitations (138 ) (159 ) Balance at end of year $ 548 $ 582

Note 13 - Cash Flow Informati_2

Note 13 - Cash Flow Information (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Cash Flow, Operating Capital [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 (Increase) decrease: Account receivable $ 4,864 $ (7,461 ) $ 10,856 Long-term receivables 1,737 (1,173 ) 329 Inventories 13,900 (8,347 ) (4,076 ) Contract assets 3,080 (1,931 ) (3,040 ) Prepaid expenses and other current assets 2,450 (1,403 ) 472 Income taxes receivables (148 ) 533 4,250 Investment in affiliates and other assets 744 (3,137 ) 48 Increase (decrease): Accounts payable (7,081 ) 2,377 (2,747 ) Contract liabilities 12,628 4,548 10,774 Accrued expenses (2,936 ) 6,745 4,631 Warranty obligations 696 273 (4,393 ) Long-term warranty obligations (367 ) 883 (1,079 ) Income taxes payable (173 ) 390 (3,023 ) Long-term marketing obligations and other payables 2,337 (387 ) (1,116 ) $ 31,731 $ (8,090 ) $ 11,886
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Cash payments for: Interest $ 264 $ 46 $ 177 Income taxes, net of refunds 2,557 977 (1,934 )
Schedule of Other Significant Noncash Transactions [Table Text Block]	Year Ended May 1, 2021 May 2, 2020 April 27, 2019 Demonstration equipment transferred to inventory $ 56 $ 10 $ 97 Purchases of property and equipment included in accounts payable 667 1,951 1,106 Contributions of common stock under the ESPP 565 2,311 1,650

Note 14 - Fair Value Measurem_2

Note 14 - Fair Value Measurement (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of May 1, 2021: Cash and cash equivalents $ 77,590 $ — $ — $ 77,590 Restricted cash 2,812 — — 2,812 Derivatives - asset position — 4 — 4 Derivatives - liability position — (261 ) — (261 ) Acquisition-related contingent consideration — — (363 ) (363 ) $ 80,402 $ (257 ) $ (363 ) $ 79,782 Balance as of May 2, 2020: Cash and cash equivalents $ 40,398 $ — $ — $ 40,398 Restricted cash 14 — — 14 Available-for-sale securities: Certificates of deposit — 1,230 — 1,230 Derivatives - asset position — 261 — 261 Derivatives - liability position — (17 ) — (17 ) Acquisition-related contingent consideration — — (761 ) (761 ) $ 40,412 $ 1,474 $ (761 ) $ 41,125
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Acquisition-related contingent consideration as of May 2, 2020 $ 761 Additions 183 Settlements (600 ) Interest 19 Acquisition-related contingent consideration as of May 1, 2021 $ 363

Note 15 - Derivative Financia_2

Note 15 - Derivative Financial Instruments (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	May 1, 2021 May 2, 2020 U.S. Dollars Foreign Currency U.S. Dollars Foreign Currency Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 2,410 3,464 2,235 3,323 U.S. Dollars/Canadian Dollars — — 452 648 U.S. Dollars/British Pounds 418 300 3,160 2,424 U.S. Dollars/Euros — — 1,881 1,689

Note 16 - Commitments and Con_2

Note 16 - Commitments and Contingencies (Tables)	12 Months Ended
	May 01, 2021
Notes Tables
Schedule of Product Warranty Liability [Table Text Block]	May 1, 2021 May 2, 2020 Beginning accrued warranty obligations $ 25,624 $ 24,470 Warranties issued during the period 8,539 10,629 Settlements made during the period (5,718 ) (9,209 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations (2,485 ) (266 ) Ending accrued warranty obligations $ 25,960 $ 25,624
Long-term Purchase Commitment [Table Text Block]	Fiscal years ending Amount 2022 $ 3,102 2023 1,825 2024 148 2025 113 2026 40 $ 5,228

Note 1 - Nature of Business a_3

Note 1 - Nature of Business and Summary of Significant Accounting Policies (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Oct. 31, 2020USD ($)	Aug. 01, 2020USD ($)	May 01, 2021USD ($)$ / sharesshares	May 02, 2020USD ($)$ / sharesshares	Apr. 27, 2019USD ($)$ / sharesshares	Apr. 28, 2019USD ($)
Other Commitment, Total			$ 5,000
Equity Method Investments			19,887	$ 17,257
Income (Loss) from Equity Method Investments, Total			(2,370)	(741)	$ (844)
Capitalized Contract Cost, Net, Total			492	1,582
Advertising Expense			843	$ 2,184	$ 2,969
Number of Employees, Voluntary Retirement		60
Voluntary Retirement Cost		$ 931
Number of Employees, Reduction in Force	150	108
Severance Costs	$ 2,742	$ 1,426
Government Wage Subsidy			1,757
Payroll Tax, Employer, Deferral under the CARES Act			$ 5,122
Operating Lease, Right-of-Use Asset						$ 11,101
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares			2,262	2,198	2,304
Antidilutive Securities Excluded from Computation of Earnings Per Share, Weighted Average Exercise Price (in dollars per share) | $ / shares			$ 9.11	$ 9.95	$ 9.99
Minimum [Member]
Product Warranty Accrual, Standard Parts Warranty Coverage Term (Year)			1 year
Product Warranty Accrual, Installation Warranty Coverage Term (Year)			1 year
Maximum [Member]
Product Warranty Accrual, Standard Parts Warranty Coverage Term (Year)			5 years
Product Warranty Accrual, Installation Warranty Coverage Term (Year)			10 years
Accounts Payable and Accrued Liabilities [Member]
Due to Related Parties, Current, Total			$ 470
Accrued Expenses [Member]
Operating Lease, Liability, Current			1,881	$ 2,416		2,745
Other Noncurrent Liabilities [Member]
Operating Lease, Liability, Noncurrent						$ 8,356
Research and Development Expense [Member]
Related Party Transaction, Amounts of Transaction			$ 460	$ 1,113	$ 0
XDC [Member]
Equity Method Investment, Ownership Percentage			16.40%

Note 1 - Nature of Business a_4

Note 1 - Nature of Business and Summary of Significant Accounting Policies - Equity Method Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Current assets	$ 265,003	$ 252,002
Current liabilities	146,620	145,965
Non-current liabilities	34,990	49,706
Basic earnings per share, net income (loss)	10,926	491	$ (958)
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Current assets	7,534	10,593	192
Non-current assets	4,637	4,266	2,626
Current liabilities	2,807	2,755	839
Non-current liabilities	1,793	4,086	2,599
Basic earnings per share, net income (loss)	$ (13,436)	$ (1,383)	$ (2,168)

Note 1 - Nature of Business a_5

Note 1 - Nature of Business and Summary of Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020	Apr. 27, 2019	Apr. 28, 2018
Cash and cash equivalents	$ 77,590	$ 40,398	$ 35,383
Restricted cash	2,812	14	359
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	$ 80,402	$ 40,412	$ 35,742	$ 29,755

Note 1 - Nature of Business a_6

Note 1 - Nature of Business and Summary of Significant Accounting Policies - Estimated Useful Lives (Details)	12 Months Ended
	May 01, 2021
Building and Building Improvements [Member] | Minimum [Member]
Estimated useful life (Year)	5 years
Building and Building Improvements [Member] | Maximum [Member]
Estimated useful life (Year)	40 years
Machinery and Equipment [Member] | Minimum [Member]
Estimated useful life (Year)	5 years
Machinery and Equipment [Member] | Maximum [Member]
Estimated useful life (Year)	7 years
Office Furniture and Equipment [Member] | Minimum [Member]
Estimated useful life (Year)	3 years
Office Furniture and Equipment [Member] | Maximum [Member]
Estimated useful life (Year)	5 years
Computer Equipment [Member] | Minimum [Member]
Estimated useful life (Year)	3 years
Computer Equipment [Member] | Maximum [Member]
Estimated useful life (Year)	5 years
Equipment Held For Rental [Member] | Minimum [Member]
Estimated useful life (Year)	2 years
Equipment Held For Rental [Member] | Maximum [Member]
Estimated useful life (Year)	7 years
Demonstration Equipment [Member] | Minimum [Member]
Estimated useful life (Year)	3 years
Demonstration Equipment [Member] | Maximum [Member]
Estimated useful life (Year)	5 years
Transportation Equipment [Member] | Minimum [Member]
Estimated useful life (Year)	5 years
Transportation Equipment [Member] | Maximum [Member]
Estimated useful life (Year)	7 years

Note 1 - Nature of Business a_7

Note 1 - Nature of Business and Summary of Significant Accounting Policies - Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Basic earnings per share, net income (loss)	$ 10,926	$ 491	$ (958)
Basic earnings per share, shares (in shares)	44,989	45,031	44,926
Basic earnings per shar (in dollars per share)	$ 0.24	$ 0.01	$ (0.02)
Dilution associated with stock compensation plans, shares (in shares)	213	285	0
Diluted loss per share, net income (loss)	$ 10,926	$ 491	$ (958)
Diluted earnings per share, shares (in shares)	45,202	45,316	44,926
Diluted earnings per share (in dollars per share)	$ 0.24	$ 0.01	$ (0.02)

Note 1 - Nature of Business a_8

Note 1 - Nature of Business and Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) $ in Thousands	12 Months Ended
	May 01, 2021USD ($)
Balance	$ 2,828
Charged to costs and expenses	3,318
Deductions	(2,204)	[1]
Balance	$ 3,942
[1]	Includes account collections and write offs

Note 2 - Revenue Recognition 1

Note 2 - Revenue Recognition 1 (Details Textual) $ in Thousands	12 Months Ended
	May 01, 2021USD ($)
Contract With Customer, Liability, Revenue Recognized During Period	$ 46,533
Revenue, Remaining Performance Obligation, Amount	303,535
Product [Member]
Revenue, Remaining Performance Obligation, Amount	250,736
Service [Member]
Revenue, Remaining Performance Obligation, Amount	$ 52,799

Note 2 - Revenue Recognition 2

Note 2 - Revenue Recognition 2 (Details Textual) $ in Thousands	May 01, 2021USD ($)
Revenue, Remaining Performance Obligation, Amount	$ 303,535
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-05-02
Revenue, Remaining Performance Obligation, Amount	$ 269,792
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	12 months

Note 2 - Revenue Recognition -

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

Note 2 - Revenue Recognition _2

Note 2 - Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 01, 2021	May 02, 2020
Contract assets	$ 32,799	$ 32,799	$ 35,467
Contract liabilities - current	64,495	64,495	50,897
Contract liabilities - non-current	10,720	10,720	10,707
Less: reductions for revenue recognized		(46,533)
Service-type Warranty Contracts [Member]
Balance at beginning of year	24,490	24,490	24,939
New contracts sold	35,623		41,169
Less: reductions for revenue recognized	(36,723)		(41,167)
Foreign currency translation and other	1,200		(451)
Balance at end of year	$ 24,590	$ 24,590	$ 24,490

Note 3 - Segment Reporting (Det

Note 3 - Segment Reporting (Details Textual)	12 Months Ended
	May 01, 2021
Number of Reportable Segments	5

Note 3 - Segment Reporting - Se

Note 3 - Segment Reporting - Segment Reporting Information (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Net sales	$ 482,033	$ 608,932	$ 569,704
Gross profit	120,583	138,700	130,294
Selling	48,649	65,902	64,648
General and administrative	27,980	35,193	34,817
Product design and development	26,846	37,772	35,557
Operating Expenses, Total	103,475	138,867	135,022
Operating income (loss)	17,108	(167)	(4,728)
Interest income	230	805	1,031
Interest expense	(295)	(106)	(160)
Other (expense) income, net	(2,983)	(541)	(1,087)
Income (loss) before income taxes	14,060	(9)	(4,944)
Depreciation and amortization	17,077	17,718	18,635
Corporate, Non-Segment [Member]
Depreciation and amortization	2,434	2,917	2,750
Commercial [Member]
Net sales	127,300	152,627	148,833
Commercial [Member] | Operating Segments [Member]
Net sales	127,300	152,627	148,833
Gross profit	33,072	29,246	31,785
Depreciation and amortization	3,037	3,682	4,795
Live Events [Member]
Net sales	143,049	196,591	170,952
Live Events [Member] | Operating Segments [Member]
Net sales	143,049	196,591	170,952
Gross profit	24,397	39,518	32,164
Depreciation and amortization	5,798	5,605	5,194
High School Park and Recreation [Member]
Net sales	91,557	96,414	91,187
High School Park and Recreation [Member] | Operating Segments [Member]
Net sales	91,557	96,414	91,187
Gross profit	31,472	28,874	26,858
Depreciation and amortization	1,942	2,025	1,965
Transportation [Member]
Net sales	58,284	70,139	64,391
Transportation [Member] | Operating Segments [Member]
Net sales	58,284	70,139	64,391
Gross profit	20,329	23,910	22,525
Depreciation and amortization	979	1,029	1,102
International [Member]
Net sales	61,843	93,161	94,341
International [Member] | Operating Segments [Member]
Net sales	61,843	93,161	94,341
Gross profit	11,313	17,152	16,962
Depreciation and amortization	$ 2,887	$ 2,460	$ 2,829

Note 3 - Segment Reporting - Ne

Note 3 - Segment Reporting - Net Sales and Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Net sales	$ 482,033	$ 608,932	$ 569,704
Property and equipment, net of accumulated depreciation	58,682	67,484	65,314
UNITED STATES
Net sales	413,211	504,931	460,099
Property and equipment, net of accumulated depreciation	50,130	58,422	59,192
Non-US [Member]
Net sales	68,822	104,001	109,605
Property and equipment, net of accumulated depreciation	$ 8,552	$ 9,062	$ 6,122

Note 4 - Goodwill and Intangi_3

Note 4 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Amortization of Intangible Assets, Total	$ 1,502	$ 1,498	$ 2,157

Note 4 - Goodwill and Intangi_4

Note 4 - Goodwill and Intangible Assets - Goodwill (Details) $ in Thousands	12 Months Ended
	May 01, 2021USD ($)
Balance	$ 7,743
Foreign currency translation	671
Balance	8,414
Live Events [Member]
Balance	2,266
Foreign currency translation	47
Balance	2,313
Commercial [Member]
Balance	3,144
Foreign currency translation	320
Balance	3,464
Transportation [Member]
Balance	38
Foreign currency translation	46
Balance	84
International [Member]
Balance	2,295
Foreign currency translation	258
Balance	$ 2,553

Note 4 - Goodwill and Intangi_5

Note 4 - Goodwill and Intangible Assets - Intangible Assets, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Weighted average life (Year)	6 years 1 month 6 days	6 years
Gross carrying amount	$ 10,460	$ 9,671
Accumulated Amortization	8,377	6,317
Intangibles, net	$ 2,083	$ 3,354
Trademarks [Member]
Weighted average life (Year)	19 years 4 months 24 days	19 years 4 months 24 days
Gross carrying amount	$ 738	$ 663
Accumulated Amortization	246	183
Intangibles, net	$ 492	$ 480
Computer Software, Intangible Asset [Member]
Weighted average life (Year)	3 years	3 years
Gross carrying amount	$ 6,606	$ 6,247
Accumulated Amortization	6,412	4,890
Intangibles, net	$ 194	$ 1,357
Customer Relationships [Member]
Weighted average life (Year)	10 years	10 years
Gross carrying amount	$ 2,984	$ 2,641
Accumulated Amortization	1,588	1,135
Intangibles, net	$ 1,396	$ 1,506
Other Intangible Assets [Member]
Weighted average life (Year)	1 year 6 months	1 year 6 months
Gross carrying amount	$ 132	$ 120
Accumulated Amortization	131	109
Intangibles, net	$ 1	$ 11

Note 4 - Goodwill and Intangi_6

Note 4 - Goodwill and Intangible Assets - Amortization Expenses (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
2022	$ 512
2023	316
2024	316
2025	316
2026	281
Thereafter	342
Total expected amortization expense	$ 2,083	$ 3,354

Note 5 - Selected Financial S_3

Note 5 - Selected Financial Statement Data (Details Textual) - USD ($)	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Depreciation, Total	$ 15,575	$ 16,230	$ 16,564

Note 5 - Selected Financial S_4

Note 5 - Selected Financial Statement Data - Inventories (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Raw materials	$ 29,913	$ 35,306
Work-in-process	9,948	12,102
Finished goods	34,495	39,395
Inventory, Net, Total	$ 74,356	$ 86,803

Note 5 - Selected Financial S_5

Note 5 - Selected Financial Statement Data - Property and Equipment, Net (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Property and equipment, gross	$ 233,387	$ 251,440
Less accumulated depreciation	174,705	183,956
Property, Plant and Equipment, Net, Ending Balance	58,682	67,484
Land [Member]
Property and equipment, gross	1,924	2,183
Building [Member]
Property and equipment, gross	69,608	68,804
Machinery and Equipment [Member]
Property and equipment, gross	98,451	104,157
Office Furniture and Equipment [Member]
Property and equipment, gross	4,103	6,151
Computer Software and Hardware [Member]
Property and equipment, gross	44,851	53,441
Equipment Held For Rental [Member]
Property and equipment, gross	0	287
Demonstration Equipment [Member]
Property and equipment, gross	7,186	8,473
Transportation Equipment [Member]
Property and equipment, gross	$ 7,264	$ 7,944

Note 5 - Selected Financial S_6

Note 5 - Selected Financial Statement Data - Accrued Expenses (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020	Apr. 28, 2019
Accrued Liabilities, Current, Total	$ 30,672	$ 36,626
Accrued Expenses [Member]
Compensation	13,079	15,967
Taxes, other than income taxes	5,888	3,597
Accrued employee benefits	2,174	2,243
Operating lease liabilities	1,881	2,416	$ 2,745
Short-term accrued expenses	7,455	9,270
Claims liabilities	0	2,562
Acquisition-related contingency consideration	$ 195	$ 571

Note 5 - Selected Financial S_7

Note 5 - Selected Financial Statement Data - Other (Expense) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Foreign currency transaction (losses) gains	$ (675)	$ 207	$ (262)
Equity in losses of affiliates	(2,370)	(741)	(844)
Other	62	(7)	19
Other Nonoperating Income (Expense), Total	$ (2,983)	$ (541)	$ (1,087)

Note 6 - Receivables (Details T

Note 6 - Receivables (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Accounts Receivable, Allowance for Credit Loss, Current	$ 3,942	$ 2,828
Accounts Receivable, after Allowance for Credit Loss, Current, Total	67,808	72,577
Retainage on Construction-type Contracts [Member]
Accounts Receivable, after Allowance for Credit Loss, Current, Total	660	687
Financing Receivable [Member]
Financing Receivable, after Allowance for Credit Loss, Total	3,097	4,633
Financing Receivable, before Allowance for Credit Loss, Total	$ 3,438	$ 5,166
Financing Receivable [Member] | Minimum [Member]
Contract and Leases Receivable, Interest Rate	5.00%
Financing Receivable [Member] | Maximum [Member]
Contract and Leases Receivable, Interest Rate	9.00%

Note 7 - Financing Agreements (

Note 7 - Financing Agreements (Details Textual) $ in Thousands	Mar. 11, 2021	May 01, 2021USD ($)	Aug. 28, 2020USD ($)
Letter of Credit [Member]
Line of Credit Facility, Expiration Period (Year)	7 years
Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 35,000
Debt Instrument, Covenant, Maximum Interest-bearing Debt to EBITDA Ratio			2.5
Long-term Line of Credit, Total		$ 0
Line of Credit Facility, Remaining Borrowing Capacity		31,189
Standby Letters of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 20,000
Long-term Line of Credit, Total		3,811
Guarantees [Member]
Long-term Line of Credit, Total		$ 2,561

Note 8 - Share Repurchase Pro_2

Note 8 - Share Repurchase Program (Details Textual) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019	Jun. 17, 2016
Stock Repurchase Program, Authorized Amount				$ 40,000
Stock Repurchased During Period, Shares (in shares)	0	1,039	0
Stock Repurchased During Period, Value		$ 5,636
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 32,539

Note 9 - Leases (Details Textua

Note 9 - Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Operating Lease, Weighted Average Discount Rate, Percent	3.30%	3.40%
Operating Lease, Weighted Average Remaining Lease Term (Year)	4 years 8 months 12 days	5 years
Operating Lease, Expense for Extension	$ 3,879
Cost of Sales [Member]
Operating Lease, Cost	2,241	$ 2,325
Operating Expense [Member]
Operating Lease, Cost	$ 977	$ 1,116
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Year)	5 years

Note 9 - Leases - Cash Flow Inf

Note 9 - Leases - Cash Flow Information Related to Lease Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Operating cash flows from operating leases	$ 2,752	$ 3,340

Note 9 - Leases - Future Minimu

Note 9 - Leases - Future Minimum Operating Lease Payments (Details) $ in Thousands	May 01, 2021USD ($)	[1]
2022	$ 2,061
2023	1,282
2024	1,168
2025	958
2026	800
Thereafter	667
Total lease payments	6,936
Less imputed interest	(530)
Other Liabilities [Member]
Total lease liabilities	$ 6,406
[1]	Includes $3,879 to extend the term of the lease for our Sioux Falls, South Dakota manufacturing facility.

Note 10 - Shareholders' Equit_3

Note 10 - Shareholders' Equity and Share-Based Compensation (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
	May 01, 2021USD ($)$ / sharesshares	May 02, 2020USD ($)shares	Apr. 27, 2019USD ($)shares
Common Stock, Shares Authorized and Undesignated (in shares)	120,000,000
Common Stock, Shares Authorized (in shares)	115,000,000	115,000,000
Common Stock, Shares Undesignated (in shares)	5,000,000
Common Share Purchase Right Per Common Share, Ratio	1
Common Share Rights Exercise, Period, Option One (Day)	10 days
Sale of Stock, Percentage of Ownership after Transaction	20.00%
Common Share Rights Exercise, Period, Option Two (Year)	10 years
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	3 years 1 month 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in shares)	1,478,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $	$ 0	$ 0	$ 98
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $	$ 451	$ 566	$ 667
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	2,868,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)	170,000	453,000	241,000
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $	$ 2,832
Proceeds from Stock Options Exercised | $	0	$ 0	$ 1,318
Share-based Payment Arrangement, Expense, Tax Benefit | $	$ 70	92	52
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate	15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date	85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)	4,000,000
Common Stock, Capital Shares Reserved for Future Issuance (in shares)	809,000
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	5 years
Share-based Payment Arrangement, Option [Member] | Independent Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	7 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $	$ 1,293	$ 1,415	$ 1,530
Restricted Stock [Member] | Independent Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Restricted Stock [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	5 years
Restricted Stock and Restricted Stock Units [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $	$ 1,787
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	2 years 7 months 6 days
In Money Options [Member]
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share) | $ / shares	$ 6.17
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in shares)	0
Preferred Share Purchase Right [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	0.001
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 25

Note 10 - Shareholders' Equit_4

Note 10 - Shareholders' Equity and Share-Based Compensation - Nonvested Restricted Stock and Restricted Stock Units (Details) - Restricted Stock and Restricted Stock Units [Member] - $ / shares	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Outstanding at beginning of year, number of nonvested shares (in shares)	449	444	437
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share)	$ 7.16	$ 7.58	$ 8.48
Granted, number of nonvested shares (in shares)	223	186	181
Granted, Weighted Average Grant Date Fair Value (in dollars per share)	$ 3.92	$ 7.03	$ 6.79
Vested, number of nonvested shares (in shares)	(176)	(173)	(169)
Vested, Weighted Average Grant Date Fair Value (in dollars per share)	$ 7.27	$ 8.10	$ 9.05
Forfeited, number of nonvested shares (in shares)	(16)	(8)	(5)
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share)	$ 7	$ 7.37	$ 7.74
Outstanding at end of year (in shares)	480	449	444
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share)	$ 5.62	$ 7.16	$ 7.58

Note 10 - Shareholders' Equit_5

Note 10 - Shareholders' Equity and Share-Based Compensation -Stock Option (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	May 01, 2021
Outstanding, shares (in shares)	2,121
Outstanding, weighted average exercise price per share (in dollars per share)	$ 9.96
Outstanding, beginning of period, weighted average remaining contractual life (Year)	4 years 9 months 29 days	4 years 4 months 17 days
Granted, shares (in shares)	412
Granted, weighted average exercise price per share (in dollars per share)	$ 4.11
Canceled or forfeited, shares (in shares)	(306)
Canceled or forfeited, weighted average exercise price per share (in dollars per share)	$ 12.48
Outstanding, shares (in shares)	2,121	2,121	2,227
Outstanding, weighted average exercise price per share (in dollars per share)	$ 8.53	$ 9.96
Outstanding, aggregate intrinsic value			$ 843
Shares vested and expected to vest (in shares)	2,190
Shares vested and expected to vest (in dollars per share)	$ 8.58
Shares vested and expected to vest (Year)	4 years 9 months 3 days
Shares vested and expected to vest			$ 792
Exercisable at May 1, 2021 (in shares)			1,478
Exercisable at May 1, 2021 (in dollars per share)			$ 9.83
Exercisable at May 1, 2021 (Year)	3 years

Note 10 - Shareholders' Equit_6

Note 10 - Shareholders' Equity and Share-Based Compensation -Weighted-average Fair Value of Options Granted (Details) - $ / shares	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Fair value of options granted (in dollars per share)	$ 1.71	$ 1.99	$ 2.16
Risk-free interest rate	43.00%	1.51%	2.83%
Expected dividend rate	0.00%	3.50%	3.37%
Expected volatility	40.53%	37.55%	38.58%
Expected life of option (in years) (Year)	6 years 11 months 8 days	6 years 11 months 8 days	6 years 9 months 29 days

Note 10 - Shareholders' Equit_7

Note 10 - Shareholders' Equity and Share-Based Compensation - Summary of Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Share-based compensation	$ 2,067	$ 2,265	$ 2,479
Share-based compensation expense	2,067	2,265	2,479
Cost of Sales [Member]
Share-based compensation expense	472	514	578
Selling and Marketing Expense [Member]
Share-based compensation expense	484	572	625
General and Administrative Expense [Member]
Share-based compensation expense	678	717	772
Research and Development Expense [Member]
Share-based compensation expense	433	462	504
Share-based Payment Arrangement, Option [Member]
Share-based compensation	450	492	593
Restricted Stock and Restricted Stock Units [Member]
Share-based compensation	1,203	1,341	1,446
Employee Stock [Member]
Share-based compensation	$ 414	$ 432	$ 440

Note 11 - Retirement Benefits (

Note 11 - Retirement Benefits (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	50.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	6.00%
Defined Contribution Plan, Award Requisite Service Period (Month)	3 months
Defined Contribution Plan, Cost	$ 0	$ 2,917	$ 2,754
Defined Contribution Plan, Attained Age (Year)	21 years

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 150
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	138	$ 159
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	38	30
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	856
Deferred Tax Assets, Valuation Allowance, Total	1,732	$ 1,189
Deferred Tax Liabilities, Net, Total	0
Foreign Tax Authority [Member]
Operating Loss Carryforwards, Total	4,457
Foreign Tax Authority [Member] | Deferred Tax Asset, Net Operating Loss [Member]
Deferred Tax Assets, Valuation Allowance, Total	$ 595
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2018 2019 2020
State and Local Jurisdiction [Member]
Open Tax Year	2017 2018 2019 2020

Note 12 - Income Taxes - Pretax

Note 12 - Income Taxes - Pretax Income Attribute to Domestic and Foreign Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Domestic	$ 10,413	$ (4,187)	$ (8,402)
Foreign	3,647	4,178	3,458
Income (loss) before income taxes	$ 14,060	$ (9)	$ (4,944)

Note 12 - Income Taxes - Income

Note 12 - Income Taxes - Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Federal	$ 507	$ 625	$ (2,142)
State	422	297	384
Foreign	891	761	1,151
Federal	1,216	(2,028)	(2,725)
State	59	(321)	(390)
Foreign	39	166	(264)
Income Tax Expense (Benefit), Total	$ 3,134	$ (500)	$ (3,986)

Note 12 - Income Taxes - Effect

Note 12 - Income Taxes - Effective Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Computed income tax expense (benefit) at federal statutory rates	$ 2,953	$ (2)	$ (1,038)
Change in uncertain tax positions	(34)	4	(2,600)
Research and development tax credit	(1,047)	(1,621)	(1,278)
Other, net	403	(241)	587
Change in valuation allowances	402	482	(471)
GILTI	(156)	149	391
Base Erosion Anti-Abuse Tax (BEAT)	(285)	301	0
Stock compensation	355	318	308
Meals and entertainment	49	305	248
Dividends paid to retirement plan	0	(111)	(158)
State taxes, net of federal benefit	494	(84)	25
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 3,134	$ (500)	$ (3,986)

Note 12 - Income Taxes - Compon

Note 12 - Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Accrued warranty obligations	$ 6,293	$ 6,202
Vacation accrual	1,222	1,753
Deferred maintenance revenue	398	987
Allowance for excess and obsolete inventory	1,776	1,318
Legal reserve	0	503
Equity compensation	324	396
Allowance for doubtful accounts	829	546
Inventory capitalization	583	822
Accrued compensation and benefits	1,707	539
Unrealized loss on foreign currency exchange	85	0
Net operating loss carry forwards	856	919
Research and development tax credit carry forwards	516	1,975
Lease accounting - lease liability	1,572	2,099
Other	1,513	1,035
Total deferred tax assets	17,674	19,094
Valuation allowance	(1,732)	(1,189)
Net deferred tax assets	15,942	17,905
Property and equipment	(2,373)	(2,141)
Lease accounting - right of use asset	(1,580)	(2,103)
Prepaid expenses	(337)	(440)
Intangible assets	(69)	(317)
Unrealized gain on foreign currency exchange	0	(17)
Other	(49)	(68)
Total deferred tax liabilities	(4,408)	(5,086)
Net deferred tax asset	11,534	12,819
Non-current assets	11,944	13,271
Non-current liabilities	$ (410)	$ (452)

Note 12 - Income Taxes - Unreco

Note 12 - Income Taxes - Unrecognized Uncertain Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Balance at beginning of year	$ 582	$ 578
Gross increases related to prior period tax positions	21	17
Gross decreases related to prior period tax positions	(1)	(2)
Gross increases related to current period tax positions	84	148
Lapse of statute of limitations	(138)	(159)
Balance at end of year	$ 548	$ 582

Note 13 - Cash Flow Informati_3

Note 13 - Cash Flow Information - Changes in Operating Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Account receivable	$ 4,864	$ (7,461)	$ 10,856
Long-term receivables	1,737	(1,173)	329
Inventories	13,900	(8,347)	(4,076)
Contract assets	3,080	(1,931)	(3,040)
Prepaid expenses and other current assets	2,450	(1,403)	472
Income taxes receivables	(148)	533	4,250
Investment in affiliates and other assets	744	(3,137)	48
Accounts payable	(7,081)	2,377	(2,747)
Contract liabilities	12,628	4,548	10,774
Accrued expenses	(2,936)	6,745	4,631
Warranty obligations	696	273	(4,393)
Long-term warranty obligations	(367)	883	(1,079)
Income taxes payable	(173)	390	(3,023)
Long-term marketing obligations and other payables	2,337	(387)	(1,116)
Change in operating assets and liabilities	$ 31,731	$ (8,090)	$ 11,886

Note 13 - Cash Flow Informati_4

Note 13 - Cash Flow Information - Supplement Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Interest	$ 264	$ 46	$ 177
Income taxes, net of refunds	$ 2,557	$ 977	$ (1,934)

Note 13 - Cash Flow Informati_5

Note 13 - Cash Flow Information - Supplement Schedule of Non-cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020	Apr. 27, 2019
Demonstration equipment transferred to inventory	$ 56	$ 10	$ 97
Purchases of property and equipment included in accounts payable	667	1,951	1,106
Contributions of common stock under the ESPP	$ 565	$ 2,311	$ 1,650

Note 14 - Fair Value Measurem_3

Note 14 - Fair Value Measurement - Fair Value Hierarchy (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Cash and cash equivalents	$ 77,590	$ 40,398
Restricted cash	2,812	14
Derivatives - asset position	4	261
Derivatives - liability position	(261)	(17)
Acquisition-related contingent consideration	(363)	(761)
Fair Value, Net Asset (Liability), Total	79,782	41,125
Certificates of Deposit [Member]
Available-for-sale securities:		1,230
Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	77,590	40,398
Restricted cash	2,812	14
Derivatives - asset position	0	0
Derivatives - liability position	0	0
Acquisition-related contingent consideration	0	0
Fair Value, Net Asset (Liability), Total	80,402	40,412
Fair Value, Inputs, Level 1 [Member] | Certificates of Deposit [Member]
Available-for-sale securities:		0
Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - asset position	4	261
Derivatives - liability position	(261)	(17)
Acquisition-related contingent consideration	0	0
Fair Value, Net Asset (Liability), Total	(257)	1,474
Fair Value, Inputs, Level 2 [Member] | Certificates of Deposit [Member]
Available-for-sale securities:		1,230
Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - asset position	0	0
Derivatives - liability position	0	0
Acquisition-related contingent consideration	(363)	(761)
Fair Value, Net Asset (Liability), Total	$ (363)	(761)
Fair Value, Inputs, Level 3 [Member] | Certificates of Deposit [Member]
Available-for-sale securities:		$ 0

Note 14 - Fair Value Measurem_4

Note 14 - Fair Value Measurement - Contingent Liabilities (Details) - Contingent Consideration Liability [Member] $ in Thousands	12 Months Ended
	May 01, 2021USD ($)
Acquisition-related contingent consideration as of May 2, 2020	$ 761
Additions	183
Settlements	(600)
Interest	19
Acquisition-related contingent consideration as of May 1, 2021	$ 363

Note 15 - Derivative Financia_3

Note 15 - Derivative Financial Instruments (Details Textual) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 4	$ 261
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 261	$ 17

Note 15 - Derivative Financia_4

Note 15 - Derivative Financial Instruments - Aggregated Notional Amount (Details) € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	May 01, 2021USD ($)	May 01, 2021AUD ($)	May 01, 2021CAD ($)	May 01, 2021GBP (£)	May 01, 2021EUR (€)	May 02, 2020USD ($)	May 02, 2020AUD ($)	May 02, 2020CAD ($)	May 02, 2020GBP (£)	May 02, 2020EUR (€)
U.S. Dollars/Australian Dollars [Member]
Derivative, Notional Amount	$ 2,410	$ 3,464				$ 2,235	$ 3,323
U.S. Dollars/Canadian Dollars [Member]
Derivative, Notional Amount	0		$ 0			452		$ 648
U.S. Dollars/British Pounds [Member]
Derivative, Notional Amount	418			£ 300		3,160			£ 2,424
U.S. Dollars/Euros [Member]
Derivative, Notional Amount	$ 0				€ 0	$ 1,881				€ 1,689

Note 16 - Commitments and Con_3

Note 16 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	May 01, 2021	May 02, 2020
Financial Standby Letter of Credit [Member]
Loss Contingency Accrual, Ending Balance	$ 3,811
Guarantee of Business Revenue [Member]
Loss Contingency Accrual, Ending Balance	2,561
Surety Bond [Member]
Loss Contingency Accrual, Ending Balance	$ 59,221
Accrued Expenses [Member]
Estimated Litigation Liability, Current		$ 2,072

Note 16 - Commitments and Con_4

Note 16 - Commitments and Contingencies - Change in Warranty Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2021	May 02, 2020
Beginning accrued warranty obligations	$ 25,624	$ 24,470
Warranties issued during the period	8,539	10,629
Settlements made during the period	(5,718)	(9,209)
Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations	(2,485)	(266)
Ending accrued warranty obligations	$ 25,960	$ 25,624

Note 16 - Commitments and Con_5

Note 16 - Commitments and Contingencies - Purchase Commitments (Details) $ in Thousands	May 01, 2021USD ($)
2022	$ 3,102
2023	1,825
2024	148
2025	113
2026	40
Purchase Obligation, Total	$ 5,228