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Commitments and Contingencies | 3 Months Ended
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Jul. 28, 2018
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 condensed 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 July 28, 2018 and April 28, 2018, we recorded a liability and related other receivable of $1,612 and $1,904 for a net claim from a customer against work performed by one of our subcontractors during installation which damaged our customer's property. The amount recorded is for probable and reasonably estimated cost to remediate the damage. Our subcontractor has full insurance for such matters, we have claims to a performance bond as additional collateral, and we carry insurance to cover such matters. In the opinion of management, the ultimate liability of this claim is not expected to have a material effect on our financial position, liquidity or capital resources. As of July 28, 2018 and April 28, 2018, a customer was withholding $2,224 of payment claiming we did not perform to the customer's specifications. We believe we have performed to the agreed-upon written specifications, have strong contractual documentation to support our position, and a customer with wherewithal to pay. We believe that we will ultimately prevail in collections. Although our assessment of the loss is remote, a number of factors could change the outcome. We did not believe there was a reasonable probability that any material loss for other 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. We do not expect the ultimate liability of these unresolved legal proceedings 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 product sold. We estimate the costs which may be incurred under the contractual warranty obligations (assurance type warranty) 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. For service-type warranty contracts, we allocate revenue to this performance obligation and recognize the revenue over time and costs as incurred. We disclosed a warranty issue in Note 18 of our Annual Report on Form 10-K for the fiscal year ended April 28, 2018 regarding a mechanical device failure within a module for displays. During the three months ended July 28, 2018 and July 29, 2017, we recognized warranty expense for probable and reasonably estimated costs to remediate this issue of $596 and $783, respectively. As of July 28, 2018, we had $1,314 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 three months ended July 28, 2018 and July 29, 2017 consisted of the following:
|  | July 28, 2018 |  |  | July 29, 2017 |
Beginning accrued warranty obligations |  | $ | 29,953 |  |  | $ | 27,899 |
Warranties issued during the period |  | 2,450 |  |  | 4,128 |
Settlements made during the period |  | (3,969 | ) |  | (3,493 | )
Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations |  | 811 |  |  | 1,219 |
Ending accrued warranty obligations |  | $ | 29,245 |  |  | $ | 29,753 |
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 July 28, 2018, we had outstanding letters of credit and surety bonds in the amount of $12,703 and $14,835, respectively. Performance guarantees are issued to certain customers to guarantee the operation and installation of the equipment and our ability to complete a contract. These performance guarantees have various terms, but are generally one year. 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 $858 and $853 for the three months ended July 28, 2018 and July 29, 2017, 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 July 28, 2018:
Fiscal years ending |  | Amount
2019 |  | $ | 2,117 |
2020 |  | 2,372 |
2021 |  | 2,047 |
2022 |  | 1,481 |
2023 |  | 248 |
Thereafter |  | 295 |
|  | $ | 8,560 |
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 July 28, 2018, we were obligated under the following conditional and unconditional purchase commitments, which included $275 in conditional purchase commitments:
Fiscal years ending |  | Amount
2019 |  | $ | 4,016 |
2020 |  | 3,661 |
2021 |  | 2,051 |
2022 |  | 143 |
2023 |  | 113 |
Thereafter |  | 267 |
|  | $ | 10,251 |

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