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Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 25, 2017		Mar. 26, 2016
Income Tax Disclosure [Abstract]
Current	$ 0	$ 0		$ 0
Deferred	(2,640)	(1,866)		(278)
Valuation allowance	2,640	1,866		278
Income tax expense	$ 0	$ 0	[1]	$ 0	[1]
[1] Retrospectively revised (see note 18)

X

- Definition

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

+ References

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-Publisher FASB
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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

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Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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