The total amount of future income tax change that would occur if all uncertain tax positions prevail.

No definition available.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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- Definition

Amount of unrecognized tax benefits.

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-Name Accounting Standards Codification
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-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of interest expense accrued for an underpayment of income taxes.

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Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Apr. 27, 2019	Apr. 28, 2018	Apr. 29, 2017	Apr. 30, 2016	May 02, 2015
Unrecognized Tax Benefits, Ending Balance		$ 1,733	$ 1,743	$ 1,678	$ 1,801
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions		191
Changes in IncomeTax if All Uncertain Tax Positions Prevail		1,400
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		$ 238
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		30.40%	35.00%	35.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ (4,300)
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%