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Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Apr. 26, 2014 | Apr. 27, 2013
--- | --- | ---
Deferred taxes assets: |  |
Warranty reserves | $ 10,432 | $ 9,847
Vacation accrual | 1,510 | 1,788
Net losses on equity investments | 2,870 | 3,066
Deferred maintenance revenue | 1,332 | 2,439
Reserves for excess and obsolete inventory | 981 | 1,246
Equity compensation | 899 | 1,049
Allowance for doubtful accounts | 797 | 599
Inventory capitalization | 306 | 600
Accrued compensation and benefits | 1,397 | 1,077
Intangible assets | 56 | 37
Net operating loss carry forwards | 766 | 0
Other | 585 | 440
Deferred tax assets, gross | 21,931 | 22,188
Valuation allowance on equity investments | (2,297) | 0
Deferred tax assets net of valuation | 19,634 | 22,188
Deferred tax liabilities: |  |
Property and equipment | (6,232) | (7,542)
Prepaid expenses | (574) | (662)
Other | (162) | (168)
Deferred tax liabilities, gross | (6,968) | (8,372)
Deferred tax assets, net | $ 12,666 | $ 13,816

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