Effective income tax rate reconciliation at federal statutory and state and local income tax rate.

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- Definition

Income tax disclosure.

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

+ References

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes - Additional Information (Detail) - USD ($)		3 Months Ended		9 Months Ended	12 Months Ended
	Apr. 01, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Line Items]
Prepaid expenses and income taxes		$ 1,962,000			$ 1,962,000
Income taxes due included in accounts and income taxes payable						$ 584,000
Recognizes interest and penalties related to uncertain tax positions					(53,000)	35,000	$ 72,000
Accrued interest and penalties related to uncertain tax positions		$ 194,000			$ 194,000	$ 247,000	$ 212,000
Reduction of corporate federal income tax rate		21.00%		35.00%
Newly enacted corporate federal income tax rate			21.00%
Effective tax rate as a percentage			5.00%
Liability for unrecognized tax benefits			$ 3,000,000	$ 3,000,000
Minimum [Member] \| Subsequent Event [Member]
Income Tax Disclosure [Line Items]
Effective combined federal and state tax rate	24.00%
Maximum [Member] \| Subsequent Event [Member]
Income Tax Disclosure [Line Items]
Effective combined federal and state tax rate	26.00%
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Tax fiscal years open to examination					2014
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Tax fiscal years open to examination					2017