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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Apr. 30, 2022
May 01, 2021
Income Tax Disclosure [Abstract]    
Accrued warranty obligations $ 7,117 $ 6,293
Vacation accrual 1,618 1,222
Deferred maintenance revenue 272 398
Allowance for excess and obsolete inventory 2,316 1,776
Equity compensation 276 324
Allowance for doubtful accounts 528 829
Inventory capitalization 1,278 583
Accrued compensation and benefits 1,019 1,707
Unrealized loss on foreign currency exchange 0 85
Net operating loss carry forwards 729 856
Research and development tax credit carry forwards 396 516
Lease accounting - lease liability 1,918 1,572
Other 2,296 1,513
Total deferred tax assets 19,763 17,674
Valuation allowance (2,452) (1,732)
Net deferred tax assets 17,311 15,942
Property and equipment (1,693) (2,373)
Lease accounting - right of use asset (1,907) (1,580)
Prepaid expenses (428) (337)
Intangible assets 0 (69)
Unrealized gain on foreign currency exchange (180) 0
Other (59) (49)
Total deferred tax liabilities (4,267) (4,408)
Net deferred tax asset 13,044 11,534
Non-current assets 13,331 11,944
Non-current liabilities $ (287) $ (410)