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Liabilities (Details Textual)
 12 Months Ended
Jan. 03, 2014
USD ($)
Jan. 03, 2014
CHF
Jan. 03, 2014
JPY (¥)
Dec. 28, 2012
USD ($)
Dec. 28, 2012
JPY (¥)
Liabilities [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity         ¥ 500,000,000
Line of Credit Facility, Interest Rate Description (approximately 1.475% as ofJanuary 3, 2014) and may be renewed annually (the current line expires on April 4, 2014). (approximately 1.475% as ofJanuary 3, 2014) and may be renewed annually (the current line expires on April 4, 2014). (approximately 1.475% as ofJanuary 3, 2014) and may be renewed annually (the current line expires on April 4, 2014).    
Line of Credit Facility, Amount Outstanding 4,800,000   500,000,000 5,800,000  
Line of Credit Facility, Current Borrowing Capacity $ 1,100,000 1,000,000      
Interest Rate Increase In Case Of Default 14.00% 14.00% 14.00%    
Percentage Of Commission On Outstanding Notes Payable 0.25% 0.25% 0.25%    
Additional Discount On Loan Description The fair value of the warrants was treated as an additional discount on the loan and was amortized using the effective interest method over the life of the loan (which approximates an effective interest rate of 32% per annum, assuming the 20% cash interest rate is maintained throughout the life of the Note). The fair value of the warrants was treated as an additional discount on the loan and was amortized using the effective interest method over the life of the loan (which approximates an effective interest rate of 32% per annum, assuming the 20% cash interest rate is maintained throughout the life of the Note). The fair value of the warrants was treated as an additional discount on the loan and was amortized using the effective interest method over the life of the loan (which approximates an effective interest rate of 32% per annum, assuming the 20% cash interest rate is maintained throughout the life of the Note).