Income tax expense benefit net of federal income tax expense benefit.

No definition available.

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- Definition

Revaluation of net deferred tax assets.

+ References

No definition available.

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- Definition

Tax credits carry forward latest expiration year.

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No definition available.

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- Definition

Unrecognized tax benefit.

+ References

No definition available.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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- Definition

Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=96864182&loc=d3e11283-113907

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount 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 nondeductible impairment loss.

+ References

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Income Taxes - Additional Information (Detail) - USD ($)		3 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2017	Jan. 01, 2017
Income Tax Contingency [Line Items]
Federal statutory tax rate			35.00%
Revaluation of net deferred tax assets		$ 5,500,000
Write-off of deferred tax assets related to share based compensation				$ 500,000
Valuation allowance		876,000	$ 876,000	0
Unrecognized tax benefits		0	0	$ 0
Unrecognized tax benefits, period				Over the next 12 months
Accrued interest or penalties		0	$ 0	$ 0
Earliest Tax Year [Member] \| Federal [Member]
Income Tax Contingency [Line Items]
Income tax returns in period			2014
Earliest Tax Year [Member] \| State and Local [Member]
Income Tax Contingency [Line Items]
Income tax returns in period			2013
Goodwill [Member]
Income Tax Contingency [Line Items]
Provision related to non-deductible goodwill impairment			$ 1,700,000
TCJA [Member]
Income Tax Contingency [Line Items]
Revaluation of net deferred tax assets			5,500,000
California Enterprise Zone Tax Credits [Member]
Income Tax Contingency [Line Items]
Provision for incomes taxes, excluding federal income tax benefit		600,000	900,000
Valuation allowance		$ 900,000	$ 900,000
Tax credits carry forward latest expiration year			2024
Subsequent Event [Member]
Income Tax Contingency [Line Items]
Federal statutory tax rate	21.00%