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Line of Credit and Debt Obligations (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 9 Months Ended |  |  | 0 Months Ended |  | 0 Months Ended | 1 Months Ended |  |
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Jul. 18, 2013 | Jul. 31, 2012 | Sep. 28, 2013 | Sep. 29, 2012 | Dec. 29, 2012 | Apr. 23, 2012 | Apr. 23, 2012 Minimum [Member] | Sep. 28, 2013 Minimum [Member] | Apr. 23, 2012 Revolving line of credit facility [Member] | Jul. 31, 2008 Residential Mortgage [Member] | Sep. 28, 2013 Residential Mortgage [Member] | Dec. 29, 2012 Level 2 [Member]
Line of Credit and Debt Obligations (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Extension of maturity period on amendment of existing credit facility |  |  |  |  |  |  |  |  | 2 years |  |  |
Commitment fee minimum percentage further decreased |  |  |  |  |  | 0.10% |  |  |  |  |  |
Interest rate during period |  |  |  |  |  |  | 5.75% |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  |  | 3.00% |  |  |  |
Mortgage agreement, borrowed amount |  |  | $ 0 |  | $ 5,302,000 |  |  |  |  | $ 13,500,000 |  |
Interest rate description for mortgage |  |  |  |  |  |  |  |  |  | Initially bears interest at the rate of 7.18% per annum, which rate will be reset after five years to 3.03% over the then weekly average yield of five-year U.S. Dollar Interest Rate Swaps as published by the Federal Reserve |  |
Mortgage bears interest rate initially |  |  |  |  |  |  |  |  |  |  | 7.18% |
Mortgage bears interest rate after five year |  |  |  |  |  |  |  |  |  |  | 3.03% |
Repayments of Long-term Debt | 4,800,000 |  | 5,224,000 | 1,989,000 |  |  |  |  |  |  |  |
Estimated fair value of debt |  |  |  |  |  |  |  |  |  |  |  | 5,700,000
Line of Credit and Debt Obligations (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  | Apr. 30, 2014 |  |  |  |  |  |  |  |  |
Commitment fee minimum percentage decreased |  |  |  |  |  | 0.1875% |  |  |  |  |  |
Limited borrowing amount |  |  | 7,500,000 |  |  |  |  |  |  |  |  |
Borrowing base |  |  | 20,000,000 |  |  |  |  |  |  |  |  |
Total borrowing available |  |  | 11,200,000 |  |  |  |  |  |  |  |  |
Amounts outstanding drawn on facility |  |  | 0 |  |  |  |  |  |  |  |  |
Monthly principal and interest payments description |  |  |  | A twenty year amortization for the first sixty months and fifteen year amortization thereafter. The remaining principal balance of the mortgage and any accrued but unpaid interest will be due on August 1, 2018 |  |  |  |  |  |  |  |
Amortization period of mortgage loan for sixty month |  |  | 20 years |  |  |  |  |  |  |  |  |
Amortization period of mortgage loan after sixty month |  |  | 15 years |  |  |  |  |  |  |  |  |
Debt instrument pre payment |  | $ 1,400,000 |  |  |  |  |  |  |  |  |  |
Early Repayment Percent of Outstanding Debt |  | 20.00% |  |  |  |  |  |  |  |  |  |

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- Definition Amortization period of mortgage loan for sixty month. + References No definition available. + Details
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- Definition Debt instrument pre payment. + References No definition available. + Details
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- Details
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- Definition Line of credit facility borrowing limit under condition two. + References No definition available. + Details
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- Definition Line of credit facility commitment fee minimum percentage decreased. + References No definition available. + Details
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- Definition Monthly principal and interest payments description. + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13476-108611 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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