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Summary of Significant Accounting Policies (Details Textual) (USD $)
 12 Months Ended
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%