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Nature of Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Apr. 29, 2023
Accounting Policies [Abstract]  
Equity Method Investments
Summarized financial information for equity method investments consist of the following:
Year Ended
April 29, 2023April 30, 2022May 1, 2021
Balance sheet data:
Current assets$5,504 $6,672 $7,534 
Non-current assets3,312 4,491 4,637 
Current liabilities25,298 13,938 2,807 
Non-current liabilities721 1,738 1,793 
Income statement data:   
Net loss$(16,932)$(11,928)$(13,436)
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 statements of cash flows. Restricted cash consists of cash and cash equivalents held in bank deposit accounts to secure issuances of foreign bank guarantees.
April 29, 2023April 30, 2022May 1, 2021
Cash and cash equivalents$23,982 $17,143 $77,590 
Restricted cash708 865 2,812 
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows$24,690 $18,008 $80,402 
Property, Plant and Equipment, Estimated Useful Life
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
Schedule of Earnings Per Share, Basic and Diluted
The following is a reconciliation of the net income and common share amounts used in the calculation of basic and diluted EPS for the fiscal years ended April 29, 2023, April 30, 2022 and May 1, 2021:
Net incomeShares
Per share income
For the year ended April 29, 2023:
Basic earnings per share$6,802 45,404 $0.15 
Dilution associated with stock compensation plans— 117 — 
Diluted earnings per share$6,802 45,521 $0.15 
For the year ended April 30, 2022:
 
Basic earnings per share$592 45,188 $0.01 
Dilution associated with stock compensation plans— 138 — 
Diluted earnings per share$592 45,326 $0.01 
For the year ended May 1, 2021:
 
Basic earnings per share$10,926 44,989 $0.24 
Dilution associated with stock compensation plans— 213 — 
Diluted earnings per share$10,926 45,202 $0.24