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Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015 | Dec. 28, 2013
Acquired Finite-Lived Intangible Assets [Line Items] |  |
2014 | $ 80 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |
2015 | 20 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |
Recycling contract, net | 100 us-gaap_FiniteLivedIntangibleAssetsNet | 179 us-gaap_FiniteLivedIntangibleAssetsNet
Trade receivables |  |
Trade Receivable Period to be Recognized as Past Due Minimum | 90 days |
Accounts receivable, allowance | 106 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | 27 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Advertising Expense | 1,905 us-gaap_AdvertisingExpense | 2,092 us-gaap_AdvertisingExpense
Restricted cash | 0 us-gaap_RestrictedCashAndCashEquivalents | 500 us-gaap_RestrictedCashAndCashEquivalents
Software development costs |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
2014 | 97 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
2015 | 61 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
2016 | 25 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
Recycling contract, net | $ 183 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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