Daktronics (DAKT) 10-Q 1 Dec 17 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Oct. 28, 2017	Nov. 27, 2017
Entity Information [Line Items]
Entity Registrant Name	DAKTRONICS INC /SD/
Entity Central Index Key	915,779
Current Fiscal Year End Date	--04-28
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		44,474,171
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 28, 2017

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 28, 2017	Apr. 29, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 39,699	$ 32,623
Restricted cash	27	216
Marketable securities	21,787	32,713
Accounts receivable, net	108,719	78,846
Inventories, net	70,436	66,486
Costs and estimated earnings in excess of billings	31,302	36,403
Current maturities of long-term receivables	1,964	2,274
Prepaid expenses and other assets	7,566	7,553
Income tax receivables	1,725	611
Total current assets	283,225	257,725
Long-term receivables, less current maturities	2,208	2,616
Goodwill	8,190	7,812
Intangibles, net	4,338	4,705
Investments in affiliates and other assets	4,730	4,534
Deferred income taxes	11,287	11,292
Total noncurrent assets	30,753	30,959
PROPERTY AND EQUIPMENT:
Land	2,134	2,099
Buildings	66,863	65,935
Machinery and equipment	86,875	84,189
Office furniture and equipment	5,642	5,604
Computer software and hardware	53,316	51,523
Equipment held for rental	287	374
Demonstration equipment	7,143	7,109
Transportation equipment	7,508	7,108
Property and equipment, gross	229,768	223,941
Less accumulated depreciation	164,549	157,192
Property and equipment, net	65,219	66,749
TOTAL ASSETS	379,197	355,433
CURRENT LIABILITIES:
Accounts payable	49,005	51,499
Accrued expenses	27,399	25,033
Warranty obligations	15,400	13,578
Billings in excess of costs and estimated earnings	16,561	10,897
Customer deposits (billed or collected)	14,349	14,498
Deferred revenue (billed or collected)	14,046	12,137
Current portion of other long-term obligations	913	1,409
Income taxes payable	1,334	1,544
Total current liabilities	139,007	130,595
Long-term warranty obligations	15,740	14,321
Long-term deferred revenue (billed or collected)	6,835	5,434
Other long-term obligations	2,333	2,848
Long-term income tax payable	3,306	3,113
Deferred income taxes	937	836
Total long-term liabilities	29,151	26,552
TOTAL LIABILITIES	168,158	157,147
SHAREHOLDERS' EQUITY:
Common Stock, no par value, authorized 120,000,000 shares; 44,671,548 and 44,372,357 shares issued and outstanding at October 28, 2017 and April 29, 2017, respectively	53,862	52,530
Additional paid-in capital	39,034	38,004
Retained earnings	123,330	113,967
Treasury Stock, at cost, 303,957 shares at October 28, 2017 and April 29, 2017, respectively	(1,834)	(1,834)
Accumulated other comprehensive loss	(3,353)	(4,381)
TOTAL SHAREHOLDERS' EQUITY	211,039	198,286
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 379,197	$ 355,433

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Oct. 28, 2017	Apr. 29, 2017
SHAREHOLDERS' EQUITY:
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	120,000,000	120,000,000
Common stock, issued (in shares)	44,671,548	44,372,357
Treasury stock, at cost (in shares)	303,957	303,957

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Income Statement [Abstract]
Net sales	$ 169,309	$ 169,992	$ 342,037	$ 327,138
Cost of goods sold	126,705	125,684	254,787	243,763
Gross profit	42,604	44,308	87,250	83,375
Operating expenses:
Selling expense	15,350	15,891	30,289	31,150
General and administrative	8,868	8,625	17,803	17,408
Product design and development	8,948	7,126	17,995	14,169
Total operating expenses	33,166	31,642	66,087	62,727
Operating income	9,438	12,666	21,163	20,648
Nonoperating income (expense):
Interest income	151	171	362	376
Interest expense	(47)	(76)	(133)	(118)
Other (expense) income, net	(87)	149	58	55
Income before income taxes	9,455	12,910	21,450	20,961
Income tax expense	2,323	3,889	5,889	6,401
Net income	$ 7,132	$ 9,021	$ 15,561	$ 14,560
Weighted average shares outstanding:
Basic (in shares)	44,412	43,988	44,345	44,051
Diluted (in shares)	44,679	44,098	44,696	44,168
Earnings per share:
Basic (in dollars per share)	$ 0.16	$ 0.21	$ 0.35	$ 0.33
Diluted (in dollars per share)	0.16	0.20	0.35	0.33
Cash dividend declared per share (in dollars per share)	$ 0.07	$ 0.07	$ 0.14	$ 0.17

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 7,132	$ 9,021	$ 15,561	$ 14,560
Other comprehensive income (loss):
Cumulative translation adjustments	(20)	(509)	1,061	(1,440)
Unrealized loss on available-for-sale securities, net of tax	(26)	(2)	(33)	(4)
Total other comprehensive income (loss), net of tax	(46)	(511)	1,028	(1,444)
Comprehensive income	$ 7,086	$ 8,510	$ 16,589	$ 13,116

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 15,561	$ 14,560
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	8,902	9,242
Impairment of intangible assets	0	830
(Gain) loss on sale of property, equipment and other assets	(1,221)	33
Share-based compensation	1,341	1,484
Equity in loss of affiliate	191	0
Provision for doubtful accounts	(21)	962
Deferred income taxes, net	81	(48)
Change in operating assets and liabilities	(15,496)	(12,049)
Net cash provided by operating activities	9,338	15,014
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(7,735)	(4,625)
Proceeds from sale of property, equipment and other assets	2,000	72
Purchases of marketable securities	0	(4,583)
Proceeds from sales or maturities of marketable securities	10,802	11,328
Purchases of equity investment	(607)	(562)
Net cash provided by investing activities	4,460	1,630
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on notes payable	0	(6)
Proceeds from exercise of stock options	511	102
Principal payments on long-term obligations	(1,027)	(904)
Dividends paid	(6,197)	(7,482)
Payments for common shares repurchased	0	(1,825)
Tax payments related to RSU issuances	(311)	(213)
Net cash used in financing activities	(7,024)	(10,328)
EFFECT OF EXCHANGE RATE CHANGES	113	(591)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	6,887	5,725
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	32,839	28,526
End of period	39,726	34,251
Cash payments for:
Interest	134	153
Income taxes, net of refunds	6,934	1,170
Supplemental schedule of non-cash investing and financing activities:
Demonstration equipment transferred to inventory	48	218
Purchase of property and equipment included in accounts payable	1,312	295
Contributions of common stock under the ESPP	$ 820	$ 0

Basis of Presentation and Summa

Basis of Presentation and Summary of Critical Accounting Policies	6 Months Ended
	Oct. 28, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Critical Accounting Policies	Note 1. Basis of Presentation and Summary of Critical Accounting Policies In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary to fairly present our financial position, results of operations and cash flows for the periods presented. The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions affecting the reported amounts therein. Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The balance sheet at April 29, 2017 has been derived from the audited financial statements at that date, but it does not include all of the information and footnotes required by GAAP for complete financial statements. These financial statements should be read in conjunction with our financial statements and notes thereto for the year ended April 29, 2017 , which are contained in our Annual Report on Form 10-K previously filed with the Securities and Exchange Commission. The results of operations for the interim periods presented are not necessarily indicative of results that may be expected for any other interim period or for the full fiscal year. Daktronics, Inc. operates on a 52- to 53-week fiscal year, with our fiscal year ending on the Saturday closest to April 30 of each year. When April 30 falls on a Wednesday, the fiscal year ends on the preceding Saturday. Within each fiscal year, each quarter is comprised of 13-week periods following the beginning of each fiscal year. In each 53-week year, an additional week is added to the first quarter, and each of the last three quarters is comprised of a 13-week period. The six months ended October 28, 2017 and October 29, 2016 contained operating results for 26-weeks. Investments in affiliates over which we have significant influence are accounted for under the equity method of accounting. Investments in affiliates over which we do not have the ability to exert significant influence over the affiliate's operating and financing activities are accounted for under the cost method of accounting. We have evaluated our relationships with our affiliates and have determined that these entities are not variable interest entities. The aggregate amount of investments accounted for under the equity method was $3,093 and $2,678 at October 28, 2017 and April 29, 2017 , respectively. The equity method requires us to report our share of losses up to our equity investment amount. Cash paid for investments in affiliates is included in the "Purchases of equity investment" line item in our consolidated statements of cash flows. Our proportional share of the respective affiliate’s earnings or losses is included in the " Other (expense) income, net " line item in our consolidated statements of operations. For the six months ended October 28, 2017 , our share of the losses of our affiliates was $191 . The aggregate amount of investments accounted for under the cost method was $ 42 at October 28, 2017 and April 29, 2017 , respectively. There have not been any identified events or changes in circumstances that may have a significant adverse effect on their fair value, and it is not practical to estimate their fair value. Recent Accounting Pronouncements Accounting Standards Adopted In August 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which reduces the diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. We early adopted ASU 2016-15 during the second quarter of fiscal 2018. Adoption of ASU 2016-15 did not have a material impact on our current period consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Restricted Cash, which requires that the statements of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. Accordingly, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts presented on the statements of cash flows. We early-adopted ASU 2016-18 during the second quarter of fiscal 2018 and applied its provisions retrospectively. Other than the change in presentation within the statements of cash flows, the adoption of ASU 2016-18 did not have an impact on the Company's consolidated financial statements. Accounting Standards Not Yet Adopted In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), which simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for interim and annual periods beginning after December 15, 2019, and will require adoption on a prospective basis. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We are currently evaluating the effect that adopting ASU 2017-04 will have on our consolidated results of operations, cash flows, and financial position. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740) Intra-Entity Transfers of Assets Other than Inventory , which is intended to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Current U.S. GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party, which is an exception to the principle of comprehensive recognition of current and deferred income taxes in U.S. GAAP. This update eliminates the exception by requiring entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. ASU 2016-16 is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-16 will have on our consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides guidance regarding the measurement and recognition of credit impairment for certain financial assets. ASU 2016-13 is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-13 will have on our consolidated financial statements and related disclosures. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (that is, lessees and lessors). ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-02 will have on our consolidated results of operations, cash flows, and financial position. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. ASU 2014-09 is a comprehensive revenue recognition model that requires a company to recognize revenue from the transfer of goods or services to customers in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. The FASB has also issued ASUs 2016-08, 2016-10, 2016-12, and 2016-20 to clarify guidance with respect to principal versus agent considerations and the identification of performance obligations and licensing, to issue guidance on certain narrow areas, and to add practical expedients. We will adopt ASU 2014-09 and related guidance during the first quarter of fiscal 2019. We have commenced a process to evaluate the impact of ASU 2014-09 on our contracts, including identifying potential differences that would result from applying the requirements of ASU 2014-09. In fiscal 2017, we made progress in reviewing our various types of revenue arrangements, and completed our preliminary assessment of all performance obligations. We have drafted accounting policies and are evaluating the disclosure requirements of ASU 2014-09 on our business processes, controls and systems. We plan to finalize our assessment during the fourth quarter of fiscal 2018 and provide training to those impacted in the organization. As a result of the review performed to date, we do not anticipate that the adoption will significantly change the timing or amount of revenue recognized, based upon our current assessment of ‘point in time’ and ‘over time’ revenue recognition. Therefore, we do not anticipate that the adoption of ASU 2014-09 will materially impact our consolidated results of operations and financial statements, other than the additional disclosure requirements.

Earnings Per Share EPS

Earnings Per Share EPS	6 Months Ended
	Oct. 28, 2017
Earnings Per Share [Abstract]
Earnings Per Share EPS	Note 2. Earnings Per Share ("EPS") Basic EPS is computed by dividing income attributable to common shareholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution which may occur if securities or other obligations to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock which share in our earnings. The following is a reconciliation of the net income and common share amounts used in the calculation of basic and diluted EPS for the three and six months ended October 28, 2017 and October 29, 2016 : Net income Shares Per share income For the three months ended October 28, 2017 Basic earnings per share $ 7,132 44,412 $ 0.16 Dilution associated with stock compensation plans — 267 — Diluted earnings per share $ 7,132 44,679 $ 0.16 For the three months ended October 29, 2016 Basic earnings per share $ 9,021 43,988 $ 0.21 Dilution associated with stock compensation plans — 110 (0.01 ) Diluted earnings per share $ 9,021 44,098 $ 0.20 For the six months ended October 28, 2017 Basic earnings per share $ 15,561 44,345 $ 0.35 Dilution associated with stock compensation plans — 351 — Diluted earnings per share $ 15,561 44,696 $ 0.35 For the six months ended October 29, 2016 Basic earnings per share $ 14,560 44,051 $ 0.33 Dilution associated with stock compensation plans — 117 — Diluted earnings per share $ 14,560 44,168 $ 0.33 Options outstanding to purchase 1,303 shares of common stock with a weighted average exercise price of $13.08 for the three months ended October 28, 2017 and 2,162 shares of common stock with a weighted average exercise price of $14.56 for the three months ended October 29, 2016 were not included in the computation of diluted (loss) earnings per share because the effects would be anti-dilutive. Options outstanding to purchase 1,312 shares of common stock with a weighted average exercise price of $13.08 for the six months ended October 28, 2017 and 2,655 shares of common stock with a weighted average exercise price of $13.41 for the six months ended October 29, 2016 were not included in the computation of diluted earnings per share because the effects would be anti-dilutive.

Share Repurchase Program (Notes

Share Repurchase Program (Notes)	6 Months Ended
	Oct. 28, 2017
Class of Stock Disclosures [Abstract]
Treasury Stock [Text Block]	Note 3. Share Repurchase Program On June 17, 2016 , our Board of Directors approved a stock repurchase program under which Daktronics, Inc. may purchase up to $40,000 of its outstanding shares of common stock. Under this program, we may repurchase shares from time to time in open market transactions and in privately negotiated transactions based on business, market, applicable legal requirements and other considerations. The repurchase program does not require the repurchase of a specific number of shares and may be terminated at any time. During the first and second quarter of fiscal 2018, we had no repurchases of shares of our outstanding common stock. During the first quarter of fiscal 2017, we repurchased 284 shares of common stock at a total cost of $1,825 , and there were no other purchases during fiscal 2017. As of October 28, 2017 , we had $38,175 of remaining capacity under our current share repurchase program.

Segment Disclosure

Segment Disclosure	6 Months Ended
	Oct. 28, 2017
Segment Reporting [Abstract]
Segment Disclosure	Note 4. Segment Disclosure We have organized our business into five segments which meet the definition of reportable segments under Accounting Standards Codification ("ASC") 280-10, Segment Reporting : Commercial, Live Events, High School Park and Recreation, Transportation, and International. These segments are based on the type of customer or geography and are the same as our business units. Our Commercial business unit primarily consists of sales of our video display systems, digital billboards, Galaxy ® and Fuelight ™ product lines to resellers (primarily sign companies), Out-of-Home ("OOH") companies, national retailers, quick-serve restaurants, casinos and petroleum retailers. Our Live Events business unit primarily consists of sales of integrated scoring and video display systems to college and professional sports facilities and convention centers and sales of our mobile display technology to video rental organizations and other live events type venues. Our High School Park and Recreation business unit primarily consists of sales of scoring systems, Galaxy ® displays and video display systems to primary and secondary education facilities. Our Transportation business unit primarily consists of sales of our Vanguard ® and Galaxy ® product lines to governmental transportation departments, airlines and other transportation related customers. Our International business unit consists of sales of all product lines outside the United States and Canada. In our International business unit, we focus on product lines related to integrated scoring and video display systems for sports and commercial applications, OOH advertising products, and European transportation related products. Our segment reporting presents results through gross profit less selling costs. Gross profit is net sales less cost of goods sold. Cost of goods sold consists primarily of inventory, consumables, salaries, other employee-related costs, facilities-related costs for manufacturing locations, machinery and equipment maintenance and depreciation, site sub-contractors, warranty costs, and other service delivery expenses. Selling expenses consist primarily of salaries, other employee-related costs, travel and entertainment expenses, facilities-related costs for sales and service offices, bad debt expenses, third-party commissions and expenditures for marketing efforts, including the costs of collateral materials, conventions and trade shows, product demos, and supplies. Segment profit excludes general and administration expense, product development expense, interest income and expense, non-operating income and income tax expense. Assets are not allocated to the segments. Depreciation and amortization are allocated to each segment based on various financial measures; however, some depreciation and amortization are corporate in nature and remain unallocated. Our segments follow the same accounting policies as those described in Note 1 of our Annual Report on Form 10-K for the fiscal year ended April 29, 2017 . Unabsorbed manufacturing costs are allocated to the business unit benefiting most from that manufacturing location's production capabilities. Unabsorbed costs of domestic field sales and services infrastructure, including most field administrative staff, are allocated to the Commercial, Live Events, High School Park and Recreation, and Transportation business units based on cost of sales. Shared manufacturing, buildings and utilities, and procurement costs are allocated based on payroll dollars, square footage and various other financial measures. We do not maintain information on sales by products; therefore, disclosure of such information is not practical. The following table sets forth certain financial information for each of our five operating segments for the periods indicated: Three Months Ended Six Months Ended October 28, October 29, October 28, October 29, Net sales: Commercial $ 34,377 $ 39,923 $ 67,240 $ 76,177 Live Events 68,653 55,363 146,265 115,996 High School Park and Recreation 29,660 28,707 58,139 56,324 Transportation 16,476 16,101 35,388 30,387 International 20,143 29,898 35,005 48,254 169,309 169,992 342,037 327,138 Gross profit: Commercial 5,271 10,552 13,539 19,707 Live Events 16,255 11,625 33,309 23,801 High School Park and Recreation 10,553 9,242 20,904 18,702 Transportation 6,181 5,799 13,126 10,641 International 4,344 7,090 6,372 10,524 42,604 44,308 87,250 83,375 Selling expense: Commercial 4,669 4,715 9,363 9,374 Live Events 3,401 2,967 6,719 6,269 High School Park and Recreation 2,743 2,491 5,347 4,951 Transportation 1,102 1,268 2,139 2,509 International 3,435 4,450 6,721 8,047 15,350 15,891 30,289 31,150 Non-allocated operating expenses: General and administrative 8,868 8,625 17,803 17,408 Product design and development 8,948 7,126 17,995 14,169 Operating income 9,438 12,666 21,163 20,648 Nonoperating income (expense): Interest income 151 171 362 376 Interest expense (47 ) (76 ) (133 ) (118 ) Other (expense) income, net (87 ) 149 58 55 Income before income taxes 9,455 12,910 21,450 20,961 Income tax expense 2,323 3,889 5,889 6,401 Net income $ 7,132 $ 9,021 $ 15,561 $ 14,560 Depreciation, amortization and impairment: Commercial $ 1,544 $ 1,594 $ 3,078 $ 3,161 Live Events 1,196 1,273 2,434 2,553 High School Park and Recreation 422 451 844 889 Transportation 285 324 579 646 International 270 1,162 551 1,491 Unallocated corporate depreciation 725 668 1,416 1,332 $ 4,442 $ 5,472 $ 8,902 $ 10,072 No single geographic area comprises a material amount of our net sales or property and equipment, net of accumulated depreciation, other than the United States. The following table presents information about net sales and property and equipment, net of accumulated depreciation, in the United States and elsewhere: Three Months Ended Six Months Ended October 28, October 29, October 28, October 29, Net sales: United States $ 143,856 $ 134,574 $ 297,858 $ 269,592 Outside U.S. 25,453 35,418 44,179 57,546 $ 169,309 $ 169,992 $ 342,037 $ 327,138 October 28, April 29, Property and equipment, net of accumulated depreciation: United States $ 59,458 $ 62,425 Outside U.S. 5,761 4,324 $ 65,219 $ 66,749 We have numerous customers worldwide for sales of our products and services; therefore, we are not economically dependent on a limited number of customers for the sale of our products and services except with respect to our dependence on two major digital billboard customers in our Commercial business unit.

Marketable Securities

Marketable Securities	6 Months Ended
	Oct. 28, 2017
Marketable Securities [Abstract]
Marketable Securities	Note 5. Marketable Securities We have a cash management program which provides for the investment of cash balances not used in current operations. We classify our investments in marketable securities as available-for-sale in accordance with the provisions of ASC 320, Investments – Debt and Equity Securities. Marketable securities classified as available-for-sale are reported at fair value with unrealized gains or losses, net of tax, reported in accumulated other comprehensive loss . As it relates to fixed income marketable securities, it is not likely we will be required to sell any of these investments before recovery of the entire amortized cost basis. In addition, as of October 28, 2017 , we anticipate we will recover the entire amortized cost basis of such fixed income securities, and we have determined no other-than-temporary impairments associated with credit losses were required to be recognized. The cost of securities sold is based on the specific identification method. Where quoted market prices are not available, we use the market price of similar types of securities traded in the market to estimate fair value. As of October 28, 2017 and April 29, 2017 , our available-for-sale securities consisted of the following: Amortized Cost Unrealized Gains Unrealized Losses Fair Value Balance as of October 28, 2017 Certificates of deposit $ 9,419 $ — $ — $ 9,419 U.S. Government sponsored entities 6,667 — (36 ) 6,631 Municipal bonds 5,732 5 — 5,737 $ 21,818 $ 5 $ (36 ) $ 21,787 Balance as of April 29, 2017 Certificates of deposit $ 12,487 $ — $ — $ 12,487 U.S. Government securities 400 — — 400 U.S. Government sponsored entities 12,260 — (22 ) 12,238 Municipal bonds 7,574 14 — 7,588 $ 32,721 $ 14 $ (22 ) $ 32,713 Realized gains or losses on investments are recorded in our consolidated statements of operations as other income (expense), net. Upon the sale of a security classified as available-for-sale, the security’s specific unrealized gain (loss) is reclassified out of " accumulated other comprehensive loss " into earnings based on the specific identification method. In the six months ended October 28, 2017 and October 29, 2016 , the reclassifications from accumulated other comprehensive loss to earnings were immaterial. All available-for-sale securities are classified as current assets, as they are readily available to support our current operating needs. The contractual maturities of available-for-sale debt securities as of October 28, 2017 were as follows: Less than 12 months 1-5 Years Total Certificates of deposit $ 6,194 $ 3,225 $ 9,419 U.S. Government sponsored entities 998 5,633 6,631 Municipal bonds 2,726 3,011 5,737 $ 9,918 $ 11,869 $ 21,787

Business Combination

Business Combination	6 Months Ended
	Oct. 28, 2017
Business Combinations [Abstract]
Business Combination	Note 6. Business Combinations ADFLOW Acquisition We have a contingent liability related to a prior year acquisition of ADFLOW Networks, Inc. ("ADFLOW"), on March 15, 2016. For more information related to the ADFLOW acquisition, see "Note 4. Business Combinations" of our Annual Report on Form 10-K for the fiscal year ended April 29, 2017. The fair value of such contingent consideration is estimated as of the acquisition date, and subsequently at the end of each reporting period, using forecasted cash flows. Projecting future cash flows requires us to make significant estimates and assumptions regarding future events, conditions, or revenues being achieved under the subject contingent agreement as well as the appropriate discount rate. Such valuation techniques include one or more significant inputs that are not observable. " See Note 13. Fair Value Measurement " for more information.

Sale of Non-Digital Division (N

Sale of Non-Digital Division (Notes)	6 Months Ended
	Oct. 28, 2017
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Note 7. Sale of Non-Digital Division In September 2017, we sold our non-digital division assets, primarily consisting of inventory, non-digital manufacturing equipment, patented and unpatented technology and know-how, customer lists, and backlog, net of warranty obligations and accounts payable with a net book value of $517 . We recorded a gain of $1,267 on the disposal, which is included in cost of goods sold in the International business unit.

Goodwill

Goodwill	6 Months Ended
	Oct. 28, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Note 8. Goodwill The changes in the carrying amount of goodwill related to each reportable segment for the six months ended October 28, 2017 were as follows: Live Events Commercial Transportation International Total Balance as of April 29, 2017 $ 2,274 $ 3,199 $ 45 $ 2,294 $ 7,812 Foreign currency translation 22 153 23 180 378 Balance as of October 28, 2017 $ 2,296 $ 3,352 $ 68 $ 2,474 $ 8,190 We perform an analysis of goodwill on an annual basis, and it is tested for impairment more frequently if events or changes in circumstances indicate that an asset might be impaired. We complete this annual analysis during our third quarter of each fiscal year, based on the goodwill amount as of the first business day of our third fiscal quarter. The result of our analysis indicated no goodwill impairment existed as of October 30, 2016, which was the first business day of our third quarter of fiscal 2017. We are currently in the process of completing this annual analysis based on the goodwill amount as of the first business day of our third quarter of fiscal 2018.

Inventories

Inventories	6 Months Ended
	Oct. 28, 2017
Inventory Disclosure [Abstract]
Inventories	Note 9. Inventories Inventories consisted of the following: October 28, April 29, Raw materials $ 26,650 $ 24,801 Work-in-process 10,887 7,366 Finished goods 32,899 34,319 $ 70,436 $ 66,486

Receivables

Receivables	6 Months Ended
	Oct. 28, 2017
Receivables [Abstract]
Receivables	Note 10. Receivables Accounts receivable are reported net of an allowance for doubtful accounts of $2,529 and $2,610 at October 28, 2017 and April 29, 2017 , respectively. Included in accounts receivable as of October 28, 2017 and April 29, 2017 was $1,454 and $1,857 , respectively, of retainage on construction-type contracts, all of which is expected to be collected within one year. In connection with certain sales transactions, we have entered into sales contracts with installment payments exceeding twelve months and sales-type leases. The present value of these contracts and leases is recorded as a receivable as the revenue is recognized in accordance with U.S. GAAP, and profit is recognized to the extent the present value is in excess of cost. We generally retain a security interest in the equipment or in the cash flow generated by the equipment until the contract is paid. The present value of long-term contracts and lease receivables, including accrued interest and current maturities, was $4,172 and $4,890 as of October 28, 2017 and April 29, 2017 , respectively. Contract and lease receivables bearing annual interest rates of 4.8 to 10.0 percent are due in varying annual installments through 2024 . The face amount of long-term receivables was $4,213 and $5,201 as of October 28, 2017 and April 29, 2017 , respectively.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Oct. 28, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 11. Commitments and Contingencies Litigation: We are a party to legal proceedings and claims which arise during the ordinary course of business. We review our legal proceedings and claims, regulatory reviews and inspections, and other legal matters on an ongoing basis and follow appropriate accounting guidance when making accrual and disclosure decisions. We establish accruals for those contingencies when the incurrence of a loss is probable and can be reasonably estimated, and we disclose the amount accrued and the amount of a reasonably possible loss in excess of the amount accrued, if such disclosure is necessary for our financial statements to not be misleading. We do not record an accrual when the likelihood of loss being incurred is probable, but the amount cannot be reasonably estimated, or when the loss is believed to be only reasonably possible or remote, although disclosures will be made for material matters as required by ASC 450-20, Contingencies - Loss Contingencies . Our assessment of whether a loss is reasonably possible or probable is based on our assessment and consultation with legal counsel regarding the ultimate outcome of the matter following all appeals. As of October 28, 2017 and April 29, 2017 , we did not believe there was a reasonable probability that any material loss for these various claims or legal actions, including reviews, inspections or other legal proceedings, if any, would be incurred. Accordingly, no material accrual or disclosure of a potential range of loss has been made related to these matters. In the opinion of management, the ultimate liability of all unresolved legal proceedings is not expected to have a material effect on our financial position, liquidity or capital resources. Warranties: We offer a standard parts coverage warranty for periods varying from one to five years for most of our products. We also offer additional types of warranties to include on-site labor, routine maintenance and event support. In addition, the terms of warranties on some installations can vary from one to 10 years. The specific terms and conditions of these warranties vary primarily depending on the type of the product sold. We estimate the costs which may be incurred under the contractual warranty obligations and record a liability in the amount of such estimated costs at the time the revenue is recognized. Factors affecting our estimate of the cost of our warranty obligations include historical experience and expectations of future conditions. We continually assess the adequacy of our recorded warranty accruals and, to the extent we experience any changes in warranty claim activity or costs associated with servicing those claims, our accrued warranty obligation is adjusted accordingly. During fiscal 2016, we discovered a warranty issue caused by a mechanical device failure within a module for displays primarily in our OOH applications built prior to fiscal 2013. The device failure causes a visual defect in the display. Over the past three years, we have deployed preventative maintenance to sites impacted and repaired the defective devices in our repair center. When certain site locations have exceeded an acceptable failure rate, we have refurbished the display to meet customers’ expectations under contractual obligations. During fiscal 2017, 2016, and 2015 we recognized warranty expense for probable and reasonably estimated costs to remediate this issue of $1,766 , $9,174 , and $1,168 , respectively. We recognized warranty expense related to this issue of $3,439 during the six months ended October 28, 2017 . This increased expense level is not the result of a new issue, but is primarily based on our decision to preserve our market leadership. We elected to expand the refurbishments for customer relationship purposes. As of October 28, 2017 , we had $4,380 remaining in accrued warranty obligations for the estimate of probable future claims related to this issue. Although many of our contractual warranty arrangements are nearing expiration for products with this issue, we may incur additional discretionary costs to maintain customer relationships or for higher than expected failure rates. Accordingly, it is possible that the ultimate cost to resolve this matter may increase and be materially different from the amount of the current estimate and accrual. Changes in our warranty obligation for the six months ended October 28, 2017 consisted of the following: Amount Beginning accrued warranty obligations $ 27,899 Warranties issued during the period 6,958 Settlements made during the period (8,260 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations 4,543 Ending accrued warranty obligations $ 31,140 Performance guarantees: We have entered into standby letters of credit and surety bonds with financial institutions relating to the guarantee of our future performance on contracts, primarily construction type contracts. As of October 28, 2017 , we had outstanding letters of credit and surety bonds in the amount of $8,841 and $10,333 , respectively. Performance guarantees are issued to certain customers to guarantee the operation and installation of the equipment and our ability to complete a contract. These performance guarantees have various terms, which are generally one year. Leases: We lease vehicles, office space and equipment for various global sales and service locations, including manufacturing space in the United States and China. Some of these leases, including the lease for manufacturing facilities in Sioux Falls, South Dakota, include provisions for extensions or purchase. The lease for the facilities in Sioux Falls, South Dakota, can be extended for an additional five years past its current term, which ends March 31, 2022, and it contains an option to purchase the property subject to the lease from March 31, 2017 to March 31, 2022 for $9,000 , which approximates fair value. If the lease is extended, the purchase option increases to $9,090 for the year ending March 31, 2023 and $9,180 for the year ending March 31, 2024. Rental expense for operating leases was $1,715 and $1,614 for the six months ended October 28, 2017 and October 29, 2016 , respectively. Future minimum payments under noncancelable operating leases, excluding executory costs such as management and maintenance fees, with initial or remaining terms of one year or more consisted of the following at October 28, 2017 : Fiscal years ending Amount 2018 $ 1,482 2019 2,369 2020 1,899 2021 1,640 2022 1,334 Thereafter 404 $ 9,128 Purchase commitments: From time to time, we commit to purchase inventory, advertising, cloud-based information systems, information technology maintenance and support services, and various other products and services over periods that extend beyond one year. As of October 28, 2017 , we were obligated under the following conditional and unconditional purchase commitments, which included $350 in conditional purchase commitments: Fiscal years ending Amount 2018 $ 1,682 2019 2,345 2020 1,668 2021 253 2022 143 Thereafter 380 $ 6,471

Income Taxes

Income Taxes	6 Months Ended
	Oct. 28, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Note 12. Income Taxes We are subject to U.S. Federal income tax as well as income taxes of multiple state and foreign jurisdictions. Due to various factors and operating in multiple state and foreign jurisdictions, our effective tax rate is subject to fluctuation. As a result of the completion of examinations by the Internal Revenue Service on prior years and the expiration of statutes of limitations, our fiscal years 2014, 2015, and 2016 are the remaining years open under statutes of limitations. Certain subsidiaries are also subject to income tax in several foreign jurisdictions which have open tax years varying by jurisdiction beginning in fiscal 2007. As of October 28, 2017 , we had $3,306 of unrecognized tax benefits which would reduce our effective tax rate if recognized.

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Oct. 28, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurement	Note 13. Fair Value Measurement ASC 820, Fair Value Measurement, defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. It also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The fair value hierarchy within ASC 820 distinguishes between the following three levels of inputs which may be utilized when measuring fair value. Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices included within Level 1 for the assets or liabilities, either directly or indirectly (for example, quoted market prices for similar assets and liabilities in active markets or quoted market prices for identical assets or liabilities in markets not considered to be active, inputs other than quoted prices that are observable for the asset or liability, or market-corroborated input). Level 3 - Unobservable inputs supported by little or no market activity based on our own assumptions used to measure assets and liabilities. 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 October 28, 2017 and April 29, 2017 according to the valuation techniques we used to determine their fair values. There have been no transfers of assets or liabilities among the fair value hierarchies presented. Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of October 28, 2017 Cash and cash equivalents $ 39,699 $ — $ — $ 39,699 Restricted cash 27 — — 27 Available-for-sale securities: Certificates of deposit — 9,419 — 9,419 U.S. Government sponsored entities — 6,631 — 6,631 Municipal bonds — 5,737 — 5,737 Derivatives - asset position — 76 — 76 Derivatives - liability position — (269 ) — (269 ) Contingent liability — — (986 ) (986 ) $ 39,726 $ 21,594 $ (986 ) $ 60,334 Balance as of April 29, 2017 Cash and cash equivalents $ 32,623 $ — $ — $ 32,623 Restricted cash 216 — — 216 Available-for-sale securities: Certificates of deposit — 12,487 — 12,487 U.S. Government securities 400 — — 400 U.S. Government sponsored entities — 12,238 — 12,238 Municipal bonds — 7,588 — 7,588 Derivatives - asset position — 64 — 64 Derivatives - liability position — (277 ) — (277 ) Contingent liability — — (1,891 ) (1,891 ) $ 33,239 $ 32,100 $ (1,891 ) $ 63,448 A roll forward of the Level 3 contingent liability, both short- and long-term, for the six months ended October 28, 2017 is as follows: Contingent liability as of April 29, 2017 $ 1,891 Settlements (1,009 ) Interest 20 Foreign currency translation 84 Contingent liability as of October 28, 2017 $ 986 The following methods and assumptions were used to estimate the fair value of each class of financial instrument. There have been no changes in the valuation techniques used by us to value our financial instruments. Cash and cash equivalents : Consists of cash on hand in bank deposits and highly liquid investments, primarily money market accounts. The fair value was measured using quoted market prices in active markets. The carrying amount approximates fair value. Restricted cash : Consists of cash and cash equivalents held in bank deposit accounts to secure issuances of foreign bank guarantees. The fair value of restricted cash was measured using quoted market prices in active markets. The carrying amount approximates fair value. Certificates of deposit : Consists of time deposit accounts with original maturities of less than three years and various yields. The fair value of these securities was measured based on valuations observed in less active markets than Level 1 investments from a third-party financial institution. The carrying amount approximates fair value. U.S. Government securities : Consists of U.S. Government treasury bills, notes, and bonds with original maturities of less than three years and various yields. The fair value of these securities was measured using quoted market prices in active markets. U.S. Government sponsored entities : Consists of Fannie Mae and Federal Home Loan Bank investment grade debt securities trading with sufficient frequency and volume to enable us to obtain pricing information on an ongoing basis. The fair value of these securities was measured based on valuations observed in less active markets than Level 1 investments. The contractual maturities of these investments vary from one month to three years. Municipal bonds : Consist of investment grade municipal bonds trading with sufficient frequency and volume to enable us to obtain pricing information on an ongoing basis. The contractual maturities of these investments vary from two to three years. The fair value of these bonds was measured based on valuations observed in less active markets than Level 1 investments. Derivatives – currency forward contracts : Consists of currency forward contracts trading with sufficient frequency and volume to enable us to obtain pricing information on an ongoing basis. The fair value of these securities was measured based on a valuation from a third-party bank. See " Note 14. Derivative Financial Instruments " for more information regarding our derivatives. Contingent liability : Consists of the fair value of a liability measured on expected future payments relating to a business acquisition if future financial performance measures are achieved. The contingent liability was calculated by estimating the discounted present value of expected future payments for estimated performance measure attainment. To estimate future performance measure attainment, we utilized significant unobservable inputs as of October 28, 2017 and April 29, 2017 . The unobservable inputs included management expectations and forecasts for business performance and an estimated discount rate based on current borrowing interest rates. To the extent that these assumptions changed or actual results differed from these estimates, the fair value of the contingent consideration liabilities could change. The contingent liability is presented in other long-term obligations in our consolidated balance sheets. Non-recurring measurements: The fair value measurement standard also applies to certain non-financial assets and liabilities measured at fair value on a nonrecurring basis. Certain long-lived assets such as goodwill, intangible assets and property, plant and equipment are measured at fair value on a nonrecurring basis and are subject to fair value adjustments in certain circumstances, such as when there is evidence of impairment. Other measurements using fair value : Some of our financial instruments, such as accounts receivable, long-term receivables, prepaid expense and other assets, costs and earnings in excess of billings and billings in excess of costs, accounts payable, warranty obligations, customer deposits, deferred revenue, and other long-term obligations, are reflected in the balance sheet at carrying value, which approximates fair value due to their short-term nature.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Oct. 28, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 14. Derivative Financial Instruments We utilize derivative financial instruments to manage the economic impact of fluctuations in currency exchange rates on those transactions denominated in currencies other than our functional currency, which is the U.S. dollar. We enter into currency forward contracts to manage these economic risks. We account for all derivatives on the balance sheet 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 October 28, 2017 and April 29, 2017 , we had not designated any of our derivative instruments as accounting hedges, and thus we recorded the changes in fair value in other income (expense), net. The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at October 28, 2017 and April 29, 2017 were as follows: October 28, 2017 April 29, 2017 U.S. Dollars Foreign U.S. Foreign Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 3,993 5,219 7,984 10,669 U.S. Dollars/Canadian Dollars 1,127 1,481 256 345 U.S. Dollars/British Pounds (140 ) — 4,936 3,959 U.S. Dollars/Singapore Dollars — — 605 844 U.S. Dollars/Euros 2,271 1,982 528 491 U.S. Dollars/Swiss Franc 419 400 — — As of October 28, 2017 , there was an asset and liability of $76 and $269 , respectively, and as of April 29, 2017 , there was an asset and liability of $64 and $277 , respectively, representing the fair value of foreign currency exchange forward contracts, which were determined using Level 2 inputs from a third-party bank.

Subsequent Events

Subsequent Events	6 Months Ended
	Oct. 28, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 15. Subsequent Events On November 30, 2017 , our Board of Directors declared a regular quarterly dividend of $0.07 per share on our common stock payable on December 21, 2017 to holders of record of our common stock on December 11, 2017 .

Basis of Presentation and Sum22

Basis of Presentation and Summary of Critical Accounting Policies (Policies)	6 Months Ended
	Oct. 28, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Pronouncements	Recent Accounting Pronouncements Accounting Standards Adopted In August 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which reduces the diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. We early adopted ASU 2016-15 during the second quarter of fiscal 2018. Adoption of ASU 2016-15 did not have a material impact on our current period consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Restricted Cash, which requires that the statements of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. Accordingly, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts presented on the statements of cash flows. We early-adopted ASU 2016-18 during the second quarter of fiscal 2018 and applied its provisions retrospectively. Other than the change in presentation within the statements of cash flows, the adoption of ASU 2016-18 did not have an impact on the Company's consolidated financial statements. Accounting Standards Not Yet Adopted In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), which simplifies the subsequent measurement of goodwill by removing the second step of the two-step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for interim and annual periods beginning after December 15, 2019, and will require adoption on a prospective basis. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We are currently evaluating the effect that adopting ASU 2017-04 will have on our consolidated results of operations, cash flows, and financial position. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740) Intra-Entity Transfers of Assets Other than Inventory , which is intended to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Current U.S. GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party, which is an exception to the principle of comprehensive recognition of current and deferred income taxes in U.S. GAAP. This update eliminates the exception by requiring entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. ASU 2016-16 is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-16 will have on our consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, which provides guidance regarding the measurement and recognition of credit impairment for certain financial assets. ASU 2016-13 is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-13 will have on our consolidated financial statements and related disclosures. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (that is, lessees and lessors). ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the effect that adopting ASU 2016-02 will have on our consolidated results of operations, cash flows, and financial position. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. ASU 2014-09 is a comprehensive revenue recognition model that requires a company to recognize revenue from the transfer of goods or services to customers in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. The FASB has also issued ASUs 2016-08, 2016-10, 2016-12, and 2016-20 to clarify guidance with respect to principal versus agent considerations and the identification of performance obligations and licensing, to issue guidance on certain narrow areas, and to add practical expedients. We will adopt ASU 2014-09 and related guidance during the first quarter of fiscal 2019. We have commenced a process to evaluate the impact of ASU 2014-09 on our contracts, including identifying potential differences that would result from applying the requirements of ASU 2014-09. In fiscal 2017, we made progress in reviewing our various types of revenue arrangements, and completed our preliminary assessment of all performance obligations. We have drafted accounting policies and are evaluating the disclosure requirements of ASU 2014-09 on our business processes, controls and systems. We plan to finalize our assessment during the fourth quarter of fiscal 2018 and provide training to those impacted in the organization. As a result of the review performed to date, we do not anticipate that the adoption will significantly change the timing or amount of revenue recognized, based upon our current assessment of ‘point in time’ and ‘over time’ revenue recognition. Therefore, we do not anticipate that the adoption of ASU 2014-09 will materially impact our consolidated results of operations and financial statements, other than the additional disclosure requirements.

Earnings Per Share EPS (Tables)

Earnings Per Share EPS (Tables)	6 Months Ended
	Oct. 28, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share Reconciliation	The following is a reconciliation of the net income and common share amounts used in the calculation of basic and diluted EPS for the three and six months ended October 28, 2017 and October 29, 2016 : Net income Shares Per share income For the three months ended October 28, 2017 Basic earnings per share $ 7,132 44,412 $ 0.16 Dilution associated with stock compensation plans — 267 — Diluted earnings per share $ 7,132 44,679 $ 0.16 For the three months ended October 29, 2016 Basic earnings per share $ 9,021 43,988 $ 0.21 Dilution associated with stock compensation plans — 110 (0.01 ) Diluted earnings per share $ 9,021 44,098 $ 0.20 For the six months ended October 28, 2017 Basic earnings per share $ 15,561 44,345 $ 0.35 Dilution associated with stock compensation plans — 351 — Diluted earnings per share $ 15,561 44,696 $ 0.35 For the six months ended October 29, 2016 Basic earnings per share $ 14,560 44,051 $ 0.33 Dilution associated with stock compensation plans — 117 — Diluted earnings per share $ 14,560 44,168 $ 0.33

Segment Disclosure (Tables)

Segment Disclosure (Tables)	6 Months Ended
	Oct. 28, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table sets forth certain financial information for each of our five operating segments for the periods indicated: Three Months Ended Six Months Ended October 28, October 29, October 28, October 29, Net sales: Commercial $ 34,377 $ 39,923 $ 67,240 $ 76,177 Live Events 68,653 55,363 146,265 115,996 High School Park and Recreation 29,660 28,707 58,139 56,324 Transportation 16,476 16,101 35,388 30,387 International 20,143 29,898 35,005 48,254 169,309 169,992 342,037 327,138 Gross profit: Commercial 5,271 10,552 13,539 19,707 Live Events 16,255 11,625 33,309 23,801 High School Park and Recreation 10,553 9,242 20,904 18,702 Transportation 6,181 5,799 13,126 10,641 International 4,344 7,090 6,372 10,524 42,604 44,308 87,250 83,375 Selling expense: Commercial 4,669 4,715 9,363 9,374 Live Events 3,401 2,967 6,719 6,269 High School Park and Recreation 2,743 2,491 5,347 4,951 Transportation 1,102 1,268 2,139 2,509 International 3,435 4,450 6,721 8,047 15,350 15,891 30,289 31,150 Non-allocated operating expenses: General and administrative 8,868 8,625 17,803 17,408 Product design and development 8,948 7,126 17,995 14,169 Operating income 9,438 12,666 21,163 20,648 Nonoperating income (expense): Interest income 151 171 362 376 Interest expense (47 ) (76 ) (133 ) (118 ) Other (expense) income, net (87 ) 149 58 55 Income before income taxes 9,455 12,910 21,450 20,961 Income tax expense 2,323 3,889 5,889 6,401 Net income $ 7,132 $ 9,021 $ 15,561 $ 14,560 Depreciation, amortization and impairment: Commercial $ 1,544 $ 1,594 $ 3,078 $ 3,161 Live Events 1,196 1,273 2,434 2,553 High School Park and Recreation 422 451 844 889 Transportation 285 324 579 646 International 270 1,162 551 1,491 Unallocated corporate depreciation 725 668 1,416 1,332 $ 4,442 $ 5,472 $ 8,902 $ 10,072
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas	The following table presents information about net sales and property and equipment, net of accumulated depreciation, in the United States and elsewhere: Three Months Ended Six Months Ended October 28, October 29, October 28, October 29, Net sales: United States $ 143,856 $ 134,574 $ 297,858 $ 269,592 Outside U.S. 25,453 35,418 44,179 57,546 $ 169,309 $ 169,992 $ 342,037 $ 327,138 October 28, April 29, Property and equipment, net of accumulated depreciation: United States $ 59,458 $ 62,425 Outside U.S. 5,761 4,324 $ 65,219 $ 66,749

Marketable Securities (Tables)

Marketable Securities (Tables)	6 Months Ended
	Oct. 28, 2017
Marketable Securities [Abstract]
Available-for-sale Securities	As of October 28, 2017 and April 29, 2017 , our available-for-sale securities consisted of the following: Amortized Cost Unrealized Gains Unrealized Losses Fair Value Balance as of October 28, 2017 Certificates of deposit $ 9,419 $ — $ — $ 9,419 U.S. Government sponsored entities 6,667 — (36 ) 6,631 Municipal bonds 5,732 5 — 5,737 $ 21,818 $ 5 $ (36 ) $ 21,787 Balance as of April 29, 2017 Certificates of deposit $ 12,487 $ — $ — $ 12,487 U.S. Government securities 400 — — 400 U.S. Government sponsored entities 12,260 — (22 ) 12,238 Municipal bonds 7,574 14 — 7,588 $ 32,721 $ 14 $ (22 ) $ 32,713
Investments Classified by Contractual Maturity Date	All available-for-sale securities are classified as current assets, as they are readily available to support our current operating needs. The contractual maturities of available-for-sale debt securities as of October 28, 2017 were as follows: Less than 12 months 1-5 Years Total Certificates of deposit $ 6,194 $ 3,225 $ 9,419 U.S. Government sponsored entities 998 5,633 6,631 Municipal bonds 2,726 3,011 5,737 $ 9,918 $ 11,869 $ 21,787

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Oct. 28, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill related to each reportable segment for the six months ended October 28, 2017 were as follows: Live Events Commercial Transportation International Total Balance as of April 29, 2017 $ 2,274 $ 3,199 $ 45 $ 2,294 $ 7,812 Foreign currency translation 22 153 23 180 378 Balance as of October 28, 2017 $ 2,296 $ 3,352 $ 68 $ 2,474 $ 8,190

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Oct. 28, 2017
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consisted of the following: October 28, April 29, Raw materials $ 26,650 $ 24,801 Work-in-process 10,887 7,366 Finished goods 32,899 34,319 $ 70,436 $ 66,486

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Oct. 28, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of Product Warranty Liability	Changes in our warranty obligation for the six months ended October 28, 2017 consisted of the following: Amount Beginning accrued warranty obligations $ 27,899 Warranties issued during the period 6,958 Settlements made during the period (8,260 ) Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations 4,543 Ending accrued warranty obligations $ 31,140
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum payments under noncancelable operating leases, excluding executory costs such as management and maintenance fees, with initial or remaining terms of one year or more consisted of the following at October 28, 2017 : Fiscal years ending Amount 2018 $ 1,482 2019 2,369 2020 1,899 2021 1,640 2022 1,334 Thereafter 404 $ 9,128
Long-term Purchase Commitment	As of October 28, 2017 , we were obligated under the following conditional and unconditional purchase commitments, which included $350 in conditional purchase commitments: Fiscal years ending Amount 2018 $ 1,682 2019 2,345 2020 1,668 2021 253 2022 143 Thereafter 380 $ 6,471

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Oct. 28, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value	The following table sets forth by Level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis at October 28, 2017 and April 29, 2017 according to the valuation techniques we used to determine their fair values. There have been no transfers of assets or liabilities among the fair value hierarchies presented. Fair Value Measurements Level 1 Level 2 Level 3 Total Balance as of October 28, 2017 Cash and cash equivalents $ 39,699 $ — $ — $ 39,699 Restricted cash 27 — — 27 Available-for-sale securities: Certificates of deposit — 9,419 — 9,419 U.S. Government sponsored entities — 6,631 — 6,631 Municipal bonds — 5,737 — 5,737 Derivatives - asset position — 76 — 76 Derivatives - liability position — (269 ) — (269 ) Contingent liability — — (986 ) (986 ) $ 39,726 $ 21,594 $ (986 ) $ 60,334 Balance as of April 29, 2017 Cash and cash equivalents $ 32,623 $ — $ — $ 32,623 Restricted cash 216 — — 216 Available-for-sale securities: Certificates of deposit — 12,487 — 12,487 U.S. Government securities 400 — — 400 U.S. Government sponsored entities — 12,238 — 12,238 Municipal bonds — 7,588 — 7,588 Derivatives - asset position — 64 — 64 Derivatives - liability position — (277 ) — (277 ) Contingent liability — — (1,891 ) (1,891 ) $ 33,239 $ 32,100 $ (1,891 ) $ 63,448
Rollforward of Level 3 Contingent Consideration Liabilities	A roll forward of the Level 3 contingent liability, both short- and long-term, for the six months ended October 28, 2017 is as follows: Contingent liability as of April 29, 2017 $ 1,891 Settlements (1,009 ) Interest 20 Foreign currency translation 84 Contingent liability as of October 28, 2017 $ 986

Derivative Financial Instrume30

Derivative Financial Instruments (Tables)	6 Months Ended
	Oct. 28, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at October 28, 2017 and April 29, 2017 were as follows: October 28, 2017 April 29, 2017 U.S. Dollars Foreign U.S. Foreign Foreign Currency Exchange Forward Contracts: U.S. Dollars/Australian Dollars 3,993 5,219 7,984 10,669 U.S. Dollars/Canadian Dollars 1,127 1,481 256 345 U.S. Dollars/British Pounds (140 ) — 4,936 3,959 U.S. Dollars/Singapore Dollars — — 605 844 U.S. Dollars/Euros 2,271 1,982 528 491 U.S. Dollars/Swiss Franc 419 400 — —

Basis of Presentation and Sum31

Basis of Presentation and Summary of Critical Accounting Policies Principles of Consolidation (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Apr. 29, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Equity Method Investments	$ 3,093		$ 2,678
Equity in loss of affiliate	191	$ 0
Cost Method Investments	$ 42		$ 42

Earnings Per Share EPS - Reconc

Earnings Per Share EPS - Reconciliation of Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Net income
Basic earnings per share	$ 7,132	$ 9,021	$ 15,561	$ 14,560
Dilution associated with stock compensation plans	0	0	0	0
Diluted earnings per share	$ 7,132	$ 9,021	$ 15,561	$ 14,560
Shares
Basic earnings per share (in shares)	44,412	43,988	44,345	44,051
Dilution associated with stock compensation plans (in shares)	267	110	351	117
Diluted earnings per share (in shares)	44,679	44,098	44,696	44,168
Per share income
Basic earnings per share (in dollars per share)	$ 0.16	$ 0.21	$ 0.35	$ 0.33
Dilution associated with stock compensation plans (in dollars per share)	0	(0.01)	0	0
Diluted earnings per share (in dollars per share)	$ 0.16	$ 0.20	$ 0.35	$ 0.33

Earnings Per Share EPS - Antidi

Earnings Per Share EPS - Antidilutive Shares Excluded (Details) - Stock Options - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	1,303	2,162	1,312	2,655
Antidilutive securities excluded from computation of earnings per share, weighted average exercise price (dollars per share)	$ 13.08	$ 14.56	$ 13.08	$ 13.41

Share Repurchase Program (Detai

Share Repurchase Program (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Jun. 17, 2016
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 40,000
Stock Repurchased During Period, Shares	0	284,000
Stock Repurchased During Period, Value		$ 1,825
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 38,175

Segment Disclosure - Net Income

Segment Disclosure - Net Income by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017USD ($)	Oct. 29, 2016USD ($)	Oct. 28, 2017USD ($)segment	Oct. 29, 2016USD ($)
Segment Reporting Information
Number of business units | segment			5
Net sales	$ 169,309	$ 169,992	$ 342,037	$ 327,138
Gross profit	42,604	44,308	87,250	83,375
Selling expense	15,350	15,891	30,289	31,150
Non-allocated operating expenses:
General and administrative	8,868	8,625	17,803	17,408
Product design and development	8,948	7,126	17,995	14,169
Operating income	9,438	12,666	21,163	20,648
Nonoperating income (expense):
Interest income	151	171	362	376
Interest expense	(47)	(76)	(133)	(118)
Other (expense) income, net	(87)	149	58	55
Income before income taxes	9,455	12,910	21,450	20,961
Income tax expense	2,323	3,889	5,889	6,401
Net income	7,132	9,021	15,561	14,560
Operating Segments
Segment Reporting Information
Net sales	169,309	169,992	342,037	327,138
Gross profit	42,604	44,308	87,250	83,375
Selling expense	15,350	15,891	30,289	31,150
Depreciation and amortization
Depreciation, amortization, and impairment	4,442	5,472	8,902	10,072
Operating Segments | Commerical
Segment Reporting Information
Net sales	34,377	39,923	67,240	76,177
Gross profit	5,271	10,552	13,539	19,707
Selling expense	4,669	4,715	9,363	9,374
Depreciation and amortization
Depreciation, amortization, and impairment	1,544	1,594	3,078	3,161
Operating Segments | Live Events
Segment Reporting Information
Net sales	68,653	55,363	146,265	115,996
Gross profit	16,255	11,625	33,309	23,801
Selling expense	3,401	2,967	6,719	6,269
Depreciation and amortization
Depreciation, amortization, and impairment	1,196	1,273	2,434	2,553
Operating Segments | High School Park and Recreation
Segment Reporting Information
Net sales	29,660	28,707	58,139	56,324
Gross profit	10,553	9,242	20,904	18,702
Selling expense	2,743	2,491	5,347	4,951
Depreciation and amortization
Depreciation, amortization, and impairment	422	451	844	889
Operating Segments | Transportation
Segment Reporting Information
Net sales	16,476	16,101	35,388	30,387
Gross profit	6,181	5,799	13,126	10,641
Selling expense	1,102	1,268	2,139	2,509
Depreciation and amortization
Depreciation, amortization, and impairment	285	324	579	646
Operating Segments | International
Segment Reporting Information
Net sales	20,143	29,898	35,005	48,254
Gross profit	4,344	7,090	6,372	10,524
Selling expense	3,435	4,450	6,721	8,047
Depreciation and amortization
Depreciation, amortization, and impairment	270	1,162	551	1,491
Operating Segments | Unallocated
Depreciation and amortization
Depreciation, amortization, and impairment	$ 725	$ 668	$ 1,416	$ 1,332

Segment Disclosure - Net Sales

Segment Disclosure - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016	Apr. 29, 2017
Net sales:
Net sales	$ 169,309	$ 169,992	$ 342,037	$ 327,138
Long-lived assets:
Long-lived assets	65,219		65,219		$ 66,749
United States
Net sales:
Sales	143,856	134,574	297,858	269,592
Long-lived assets:
Long-lived assets	59,458		59,458		62,425
Outside U.S.
Net sales:
Sales	25,453	$ 35,418	44,179	$ 57,546
Long-lived assets:
Long-lived assets	$ 5,761		$ 5,761		$ 4,324

Marketable Securities - Availab

Marketable Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Apr. 29, 2017
Schedule of Available-for-sale Securities
Amortized Cost	$ 21,818	$ 32,721
Unrealized Gains	5	14
Unrealized Losses	(36)	(22)
Fair Value	21,787	32,713
Certificates of deposit
Schedule of Available-for-sale Securities
Amortized Cost	9,419	12,487
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	9,419	12,487
U.S. Government securities
Schedule of Available-for-sale Securities
Amortized Cost		400
Unrealized Gains		0
Unrealized Losses		0
Fair Value		400
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Amortized Cost	6,667	12,260
Unrealized Gains	0	0
Unrealized Losses	(36)	(22)
Fair Value	6,631	12,238
Municipal obligations
Schedule of Available-for-sale Securities
Amortized Cost	5,732	7,574
Unrealized Gains	5	14
Unrealized Losses	0	0
Fair Value	$ 5,737	$ 7,588

Marketable Securities - Avail38

Marketable Securities - Available-for-sale by Maturity Date (Details) $ in Thousands	Oct. 28, 2017USD ($)
Schedule of Available-for-sale Securities
Less than 12 months	$ 9,918
Greater than 12 months	11,869
Total	21,787
Certificates of deposit
Schedule of Available-for-sale Securities
Less than 12 months	6,194
Greater than 12 months	3,225
Total	9,419
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Less than 12 months	998
Greater than 12 months	5,633
Total	6,631
Municipal obligations
Schedule of Available-for-sale Securities
Less than 12 months	2,726
Greater than 12 months	3,011
Total	$ 5,737

Sale of Non-Digital Division (D

Sale of Non-Digital Division (Details) - Non-Digital Division [Member] $ in Thousands	6 Months Ended
	Oct. 28, 2017USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from sale of non-digital division	$ 1,267
Assets sold	$ 517

Goodwill (Details)

Goodwill (Details) $ in Thousands	6 Months Ended
	Oct. 28, 2017USD ($)
Goodwill
Balance as of April 29, 2017	$ 7,812
Foreign currency translation	378
Balance as of October 28, 2017	8,190
Live Events
Goodwill
Balance as of April 29, 2017	2,274
Foreign currency translation	22
Balance as of October 28, 2017	2,296
Commerical
Goodwill
Balance as of April 29, 2017	3,199
Foreign currency translation	153
Balance as of October 28, 2017	3,352
Transportation
Goodwill
Balance as of April 29, 2017	45
Foreign currency translation	23
Balance as of October 28, 2017	68
International
Goodwill
Balance as of April 29, 2017	2,294
Foreign currency translation	180
Balance as of October 28, 2017	$ 2,474

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Apr. 29, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 26,650	$ 24,801
Work-in-process	10,887	7,366
Finished goods	32,899	34,319
Inventories	$ 70,436	$ 66,486

Receivables (Details)

Receivables (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 28, 2017	Apr. 29, 2017
Receivables
Allowance for doubtful accounts	$ 2,529	$ 2,610
Retainage on construction-type contracts, expected to be collected in one year	1,454	1,857
Financing Receivable
Receivables
Long-term contracts and lease receivables, present value	4,172	4,890
Long-term contracts and lease receivables, face amount	$ 4,213	$ 5,201
Financing Receivable | Minimum
Receivables
Contract and lease receivables annual interest rates	4.80%
Financing Receivable | Maximum
Receivables
Contract and lease receivables annual interest rates	10.00%

Commitments and Contingencies -

Commitments and Contingencies - Guarantees and Warranties (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Oct. 28, 2017	Apr. 29, 2017	Apr. 30, 2016	May 02, 2015	Oct. 28, 2017
Warranties:
Identified warranty obligations accrued	$ 4,543
Remaining accrual	27,899	$ 27,899			$ 31,140
Movement in Standard Product Warranty Accrual
Beginning accrued warranty costs	27,899
Warranties issued during the period	6,958
Settlements made during the period	(8,260)
Changes in accrued warranty costs for pre-existing warranties during the period, including expirations	4,543
Ending accrued warranty costs	$ 31,140	27,899
Minimum
Warranties:
Standard parts warranty period	1 year
Installation warranty period	1 year
Maximum
Warranties:
Standard parts warranty period	5 years
Installation warranty period	10 years
Performance guarantees | Letter of credit and bank guarantees agreements
Guarantees:
Performance guarantees outstanding					8,841
Performance guarantees | Surety bonds
Guarantees:
Performance guarantees outstanding					10,333
Out-of-Home Product Application
Warranties:
Identified warranty obligations accrued	$ 3,439	1,766	$ 9,174	$ 1,168
Remaining accrual	4,380				$ 4,380
Movement in Standard Product Warranty Accrual
Changes in accrued warranty costs for pre-existing warranties during the period, including expirations	3,439	$ 1,766	$ 9,174	$ 1,168
Ending accrued warranty costs	$ 4,380

Commitments and Contingencies44

Commitments and Contingencies - Leases (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016
Operating Leased Assets
Operating leases, rent expense	$ 1,715	$ 1,614
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity
2,018	1,482
2,019	2,369
2,020	1,899
2,021	1,640
2,022	1,334
Thereafter	404
Total	9,128
March 31, 2017 to March 31, 2022
Operating Leased Assets
Operating leases, purchase option price	9,000
April 1, 2022 to March 31, 2023
Operating Leased Assets
Operating leases, purchase option price	9,090
April 1, 2023 to March 31, 2024
Operating Leased Assets
Operating leases, purchase option price	$ 9,180

Commitments and Contingencies45

Commitments and Contingencies - Purchase Commitments (Details) $ in Thousands	Oct. 28, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
Conditional purchase commitment	$ 350
Purchase Obligation, Fiscal Year Maturity
2,018	1,682
2,019	2,345
2,020	1,668
2,021	253
2,022	143
Thereafter	380
Total	$ 6,471

Income Taxes (Details)

Income Taxes (Details) $ in Thousands	Oct. 28, 2017USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits that would affect our effective tax rate if recognized	$ 3,306

Fair Value Measurement (Details

Fair Value Measurement (Details) - USD ($) $ in Thousands	Oct. 28, 2017	Apr. 29, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	$ 21,787	$ 32,713
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	9,419	12,487
U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		400
U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	6,631	12,238
Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	5,737	7,588
Reported Value Measurement [Member] | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	39,699	32,623
Restricted cash	27	216
Derivatives - currency forward contract, asset	76	64
Derivatives - currency forward contracts, liability	(269)	(277)
Contingent liability	(986)	(1,891)
Assets (Liabilities), net	60,334	63,448
Reported Value Measurement [Member] | Recurring Basis | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	9,419	12,487
Reported Value Measurement [Member] | Recurring Basis | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		400
Reported Value Measurement [Member] | Recurring Basis | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	6,631	12,238
Reported Value Measurement [Member] | Recurring Basis | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	5,737	7,588
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	39,699	32,623
Restricted cash	27	216
Derivatives - currency forward contract, asset	0	0
Derivatives - currency forward contracts, liability	0	0
Contingent liability	0	0
Assets (Liabilities), net	39,726	33,239
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		400
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 1 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - currency forward contract, asset	76	64
Derivatives - currency forward contracts, liability	(269)	(277)
Contingent liability	0	0
Assets (Liabilities), net	21,594	32,100
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	9,419	12,487
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | U.S. Government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:		0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	6,631	12,238
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	5,737	7,588
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Restricted cash	0	0
Derivatives - currency forward contract, asset	0	0
Derivatives - currency forward contracts, liability	0	0
Contingent liability	(986)	(1,891)
Assets (Liabilities), net	(986)	(1,891)
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | U.S. Government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	0	0
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 3 | Municipal obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available-for-sale securities:	$ 0	$ 0

Fair Value Measurement - Roll F

Fair Value Measurement - Roll Forward of the Level 3 Contingent Consideration Liability (Details) - Estimate of Fair Value Measurement [Member] - Level 3 - Recurring Basis - Contingent Consideration Liability $ in Thousands	6 Months Ended
	Oct. 28, 2017USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent liability as of April 29, 2017	$ 1,891
Settlements	(1,009)
Interest	20
Foreign currency translation	84
Contingent liability as of October 28, 2017	$ 986

Derivative Financial Instrume49

Derivative Financial Instruments (Details) € in Thousands, £ in Thousands, SGD in Thousands, CAD in Thousands, AUD in Thousands, $ in Thousands

Oct. 28, 2017CAD

Oct. 28, 2017AUD

Oct. 28, 2017USD ($)

Oct. 28, 2017EUR (€)

Oct. 28, 2017SGD

Oct. 28, 2017GBP (£)

Apr. 29, 2017CAD

Apr. 29, 2017AUD

Apr. 29, 2017USD ($)

Apr. 29, 2017EUR (€)

Apr. 29, 2017SGD

Apr. 29, 2017GBP (£)

U.S. Dollars/Australian Dollars

Derivative

Foreign Currency Exchange Forward Contracts:

AUD 5,219

$ 3,993

AUD 10,669

$ 7,984

U.S. Dollars/Canadian Dollars

Derivative

Foreign Currency Exchange Forward Contracts:

CAD 1,481

1,127

CAD 345

256

U.S. Dollars/British Pounds

Derivative

Foreign Currency Exchange Forward Contracts:

£ 0

4,936

£ 3,959

U.S. Dollars/Singapore Dollars

Derivative

Foreign Currency Exchange Forward Contracts:

0

SGD 0

605

SGD 844

U.S. Dollars/Euros

Derivative

Foreign Currency Exchange Forward Contracts:

2,271

€ 1,982

528

€ 491

U.S. Dollars/Swiss Franc

Derivative

Foreign Currency Exchange Forward Contracts:

419

€ 400

0

€ 0

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

Derivative

Derivatives - currency forward contract, asset

76

64

Derivatives - currency forward contracts, liability

269

$ 277

Short | U.S. Dollars/British Pounds

Derivative

Foreign Currency Exchange Forward Contracts:

$ 140

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares	Nov. 30, 2017	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Subsequent Event [Line Items]
Cash dividend declared per share (in dollars per share)		$ 0.07	$ 0.07	$ 0.14	$ 0.17
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividend declared per share (in dollars per share)	$ 0.07