No definition available.

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- Definition

Outstanding term loan.

+ References

No definition available.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.5-03(8))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Subparagraph (SX 210.9-04(8))
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Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
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-Section 50
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-Subparagraph (g)
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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

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

+ References

+ Details

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- Definition

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.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion 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.

+ References

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

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- Details

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- Details

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Debt (Details) - USD ($) $ in Thousands	3 Months Ended
Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Dec. 28, 2016
Debt (Textual)
Outstanding balances under revolver	$ 2,129	$ 2,487
Outstanding balances under term loan	$ 3,228	$ 3,286
Sterling [Member]
Debt (Textual)
Term loan facility			$ 8,500
Subordinated indebtedness, description	(i) a fixed charge coverage ratio of not less than 1.1 to 1.0 for any fiscal month (determined as of the last day of each fiscal month on a rolling twelve-month basis, as calculated for the Company and its consolidated subsidiaries) and (ii) a leverage ratio of not more than 2.0 to 1.0 for any fiscal month
Sterling facility, maturity date	Dec. 31, 2019
Sterling [Member] \| Revolver [Member]
Debt (Textual)
Term loan facility			5,000
Interest on revolver - margin	4.00%
Variable rate basis, description	Interest on the Revolver is variable, based upon the 30-day LIBOR rate (1.88% at March 31, 2018) plus a margin of 4.00%.
Sterling [Member] \| Term Loan [Member]
Debt (Textual)
Term loan facility			$ 3,500
Interest on revolver - margin	4.50%
Term loan Amortize rate per month	$ 19
Variable rate basis, description	Interest on the Term Loan also is variable, based upon the 30-day LIBOR rate (1.88% at March 31, 2018) plus a margin of 4.50%.