Consolidated leverage ratio for first quarter of next fiscal year.

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Fixed charge coverage ratio for fiscal year two.

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- Definition

Line Of Credit Agreement Amendment Date

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- Definition

Percentage Of Excess Cash Flow Use For Annual Debt Payment Condition One

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No definition available.

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- Definition

Percentage Of Excess Cash Flow Use For Annual Debt Payment Condition Two

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No definition available.

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- Definition

Term Loan Principal Amount Outstanding Condition One

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Term Loan Principal Amount Outstanding Condition Two

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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-Topic 230

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of the required periodic payments of both interest and principal.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Borrowing Arrangements - Additional Information (Detail) - USD ($)		1 Months Ended		6 Months Ended
	Jun. 26, 2015	Feb. 04, 2015	Jan. 31, 2015	Jun. 26, 2015	Mar. 27, 2015	Feb. 05, 2015	Feb. 02, 2015	Dec. 26, 2014
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 500,000			$ 500,000	$ 700,000
Outstanding amount of borrowing classified as long-term debt	$ 74,400,000			$ 74,400,000
Base rate loans, carrying interest	3.25%			3.25%
Amortization of debt discount				$ 600,000
Percentage of excess cash flow used for annual debt payment condition one				33.00%
New term loan principal amount outstanding condition one	$ 20,000,000			$ 20,000,000
Percentage of excess cash flow used for annual debt payment condition two				25.00%
Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio for the next fiscal year				125.00%
New term loan principal amount outstanding condition two	10,000,000			$ 10,000,000
Maximum [Member]
Debt Instrument [Line Items]
Consolidated leverage ratio for first quarter of next fiscal year				350.00%
New term loan principal amount outstanding condition two	$ 20,000,000			$ 20,000,000
Marchi Thermal Systems Inc [Member]
Debt Instrument [Line Items]
Outstanding amount of borrowing under credit facility						$ 29,700,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding amount of borrowing classified as long-term debt								$ 31,300,000
Revolving Credit Facility [Member] \| Silicon Valley Bank [Member]
Debt Instrument [Line Items]
Maturity date of debt		Jul. 03, 2016
Base rate interest			3.75%
Term Loan Credit Facility [Member] \| Silicon Valley Bank [Member]
Debt Instrument [Line Items]
Maturity date of debt		Jul. 03, 2016
New Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Base rate interest	3.00%
Credit agreement amendment date				Apr. 03, 2015
Outstanding amount of borrowing under credit facility							$ 6,500,000
New line of credit facility maturity period				4 years
Outstanding amounts	$ 36,200,000			$ 36,200,000
New Revolving Credit Facility [Member] \| Marchi Thermal Systems Inc [Member]
Debt Instrument [Line Items]
Outstanding amount of borrowing under credit facility						29,700,000
New Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date of debt				Feb. 02, 2019
Base rate interest	2.69%
Outstanding amount of borrowing under credit facility							$ 40,000,000
Outstanding amounts	$ 38,700,000			$ 38,700,000
New Term Loan Credit Facility [Member] \| Four Installments [Member]
Debt Instrument [Line Items]
New term loan repaid				1,250,000
New Term Loan Credit Facility [Member] \| Remaining Twelve Installments [Member]
Debt Instrument [Line Items]
New term loan repaid				$ 2,900,000
Loan And Security Agreement [Member] \| Revolving Credit Facility [Member] \| Silicon Valley Bank [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility		$ 40,000,000
Loan And Security Agreement [Member] \| Term Loan Credit Facility [Member] \| Silicon Valley Bank [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility		$ 40,000,000
Credit Agreement [Member] \| New Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility						40,000,000
Credit Agreement [Member] \| New Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility						40,000,000
Credit Agreement [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility						20,000,000
Credit Agreement [Member] \| Swing Line Sub-Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity under credit facility						$ 5,000,000