Warrants (Details) (USD $)	Dec. 29, 2012
PrivatePlacementEquityOffering2008Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 3.00
Number Outstanding And Exercisable At December 29, 2012	1,718,350
Weighted Average Remaining Contractual Life	3 months 18 days
PrivatePlacementEquityOffering2010Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.21
Number Outstanding And Exercisable At December 29, 2012	7,803,564
Weighted Average Remaining Contractual Life	4 months 21 days
PlacementAgentCommission2012Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.85
Number Outstanding And Exercisable At December 29, 2012	285,000
Weighted Average Remaining Contractual Life	19 months 3 days
NonEmployeeAward2012Member
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.75
Number Outstanding And Exercisable At December 29, 2012	250,000
Weighted Average Remaining Contractual Life	19 months 9 days
TotalMember
Warrants outstanding and exercisable
Weighted Average Exercise Prices	$ 0.72
Number Outstanding And Exercisable At December 29, 2012	10,056,914
Weighted Average Remaining Contractual Life	5 months 9 days