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Nature of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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May 02, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Equity Method Investments | Summarized financial information for equity method investments consist of the following:
| Year Ended
| May 2, 2020 |  | April 27, 2019 |  | April 28, 2018
Balance sheet data: |  |  |  |  |
Current assets | $ | 10,593 |  |  | $ | 192 |  |  |
Non-current assets | 4,266 |  |  | 2,626 |  |  |
Current liabilities | 2,755 |  |  | 839 |  |  |
Non-current liabilities | 4,086 |  |  | 2,599 |  |  |
Income statement data: |  |  |  |  |
Net loss | (1,383 | ) |  | (2,168 | ) |  | (1,493 | )
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the totals of the same amounts shown in the consolidated statement of cash flows:
| May 2, 2020 |  | April 27, 2019 |  | April 28, 2018
Cash and cash equivalents | $ | 40,398 |  |  | $ | 35,383 |  |  | $ | 29,727 |
Restricted cash | 14 |  |  | 359 |  |  | 28 |
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows | $ | 40,412 |  |  | $ | 35,742 |  |  | $ | 29,755 |
Restrictions on Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the totals of the same amounts shown in the consolidated statement of cash flows:
| May 2, 2020 |  | April 27, 2019 |  | April 28, 2018
Cash and cash equivalents | $ | 40,398 |  |  | $ | 35,383 |  |  | $ | 29,727 |
Restricted cash | 14 |  |  | 359 |  |  | 28 |
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows | $ | 40,412 |  |  | $ | 35,742 |  |  | $ | 29,755 |
Schedule of Property and Equipment | In accordance with ASC 360, Property, Plant, and Equipment, property and equipment are stated at cost and depreciated principally on the straight-line method over the following estimated useful lives:
| Years
Buildings and improvements | 5 - 40
Machinery and equipment | 5 - 7
Office furniture and equipment | 3 - 5
Computer software and hardware | 3 - 5
Equipment held for rental | 2 - 7
Demonstration equipment | 3 - 5
Transportation equipment | 5 - 7
Property and equipment, net consisted of the following:
| May 2, 2020 |  | April 27, 2019
Land | $ | 2,183 |  |  | $ | 1,738 |
Buildings | 68,804 |  |  | 66,403 |
Machinery and equipment | 104,157 |  |  | 96,486 |
Office furniture and equipment | 6,151 |  |  | 6,195 |
Computer software and hardware | 53,441 |  |  | 55,460 |
Equipment held for rental | 287 |  |  | 287 |
Demonstration equipment | 8,473 |  |  | 7,422 |
Transportation equipment | 7,944 |  |  | 7,715 |
| 251,440 |  |  | 241,706 |
Less accumulated depreciation | 183,956 |  |  | 176,392 |
| $ | 67,484 |  |  | $ | 65,314 |
Schedule of Earnings Per Share Reconciliation | The following is a reconciliation of the net income (loss) and common share amounts used in the calculation of basic and diluted EPS for the fiscal years ended May 2, 2020, April 27, 2019 and April 28, 2018:
| Net income (loss) |  | Shares |  | Per share income (loss)
For the year ended May 2, 2020: |  |  |  |  |
Basic earnings per share | $ | 491 |  |  | 45,031 |  |  | $ | 0.01 |
Dilution associated with stock compensation plans | — |  |  | 285 |  |  | — |
Diluted earnings per share | $ | 491 |  |  | 45,316 |  |  | $ | 0.01 |
For the year ended April 27, 2019: |  |  |  |  |  |  |
Basic loss per share | $ | (958 | ) |  | 44,926 |  |  | $ | (0.02 | )
Dilution associated with stock compensation plans | — |  |  | — |  |  | — |
Diluted loss per share | $ | (958 | ) |  | 44,926 |  |  | $ | (0.02 | )
For the year ended April 28, 2018: |  |  |  |  |  |  |
Basic earnings per share | $ | 5,562 |  |  | 44,457 |  |  | $ | 0.13 |
Dilution associated with stock compensation plans | — |  |  | 416 |  |  | (0.01 | )
Diluted earnings per share | $ | 5,562 |  |  | 44,873 |  |  | $ | 0.12 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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