Strategic Alliance and Investment by Elutions, Inc (Details Textual) (USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Strategic Alliance and Investment [Line Items]
Total Proceeds Allocated To Financial Instruments Issued	$ 5,269,000
Costs Related To Transaction	392,000
Transaction Costs Allocated To Liabilities	263,000
Transaction Costs Allocated To Equities	129,000
Amortization of Debt Discount (Premium)	1,265,000	0
Increase In Fair Value Of Tracking Warrant And Holder Redemption Option Liabilities	17,000
Non Convertible Promissory Note [Member] | Elutions, Inc [Member]
Strategic Alliance and Investment [Line Items]
Debt Instrument, Face Amount	3,268,664
Debt Instrument, Interest Rate, Stated Percentage	7.825%
Debt Instrument Debt Default Interest Rate Percentage	9.825%
Debt Instrument, Maturity Date	Mar. 18, 2019
Price Per Share Of Stock	$ 5.50
Tracking Warrant [Member] | Elutions, Inc [Member]
Strategic Alliance and Investment [Line Items]
Warrants Issued During Period Number Of Warrants	996,544
Warrants Issued During Period Exercise Price	$ 3.28
Warrants Issued During Period Expiration Date	Mar. 18, 2020
Price Per Share Of Stock On Tracking Warrant	$ 5.50
Common Stock [Member] | Elutions, Inc [Member]
Strategic Alliance and Investment [Line Items]
Stock Issued During Period, Shares, New Issues	609,756
Shares Issued, Price Per Share	$ 3.28
Stock Issued During Period, Value, New Issues	$ 2,000,000
Incentive Warrant [Member] | Elutions, Inc [Member]
Strategic Alliance and Investment [Line Items]
Warrants Issued During Period Number Of Warrants	3,400,000
Warrants Issued During Period Expiration Date	Mar. 18, 2020
Warrants Issued During Period Exercise Price Increases Per Year	$ 0.25
Warrants Issued During Period Exercise Price Minimum	$ 3.85
Warrants Issued During Period Exercise Price Maximum	$ 4.85