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Summary of Significant Accounting Policies (Details Textual) (USD $) | 12 Months Ended
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Dec. 29, 2012 Customer | Dec. 31, 2011 Customer | Jan. 01, 2011 Customer
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Percentage of purchase price to be deposited in escrow account | 10.00% |  |
Restricted cash | $ 510,000 | $ 0 |
Provision of sales returns | 100,000 | 100,000 |
Accounts receivable, net | 5,480,000 | 5,551,000 |
Allowance for doubtful accounts receivable | 146,000 | 162,000 |
Gross value of demos | 1,400,000 |  |
Gross value of loaners |  | 1,200,000 |
Accumulated amortization on inventory demos | 600,000 |  |
Accumulated Amortization on Inventory Loaners |  | 500,000 |
Estimated useful life of demos and loaners | 4 years |  |
Estimated useful lives of the assets | 3 years |  |
Shipping and handling costs | 300,000 | 300,000 | 300,000
Advertising and promotion costs | $ 200,000 | $ 300,000 | $ 300,000
No of customer accounted for greater than 10% of total sales | 0 | 0 | 0
No. of customer accounted for more than 10% of net accounts receivable | 0 | 0 |
Customer accounted percentage of total sales | 10.00% | 10.00% | 10.00%
Customer accounted percentage of net accounts receivable balance | 10.00% | 10.00% |
Goodwill impairment threshold limit | 50.00% |  |

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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + 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 210.5-02.3-4) -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 3 -Subparagraph a(1) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 + Details
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