Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Dec. 28, 2013 Customer	Dec. 29, 2012 Customer	Dec. 31, 2011 Customer
Summary of Significant Accounting Policies (Textual) [Abstract]
Provision of sales returns	$ 33,000	$ 53,000
Gross value of demos	1,600,000
Gross value of loaners		1,400,000
Accumulated amortization on inventory demos	601,000
Accumulated amortization on inventory loaners		603,000
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	100,000	200,000	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%
Restricted cash		$ 510,000
Percentage of purchase price to be deposited in escrow account		10.00%