Description of Business and Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012 Minimum [Member]	Oct. 02, 2011 Minimum [Member]	Sep. 30, 2012 Maximum [Member]	Oct. 02, 2011 Maximum [Member]
Risk free interest rate			0.29%	1.89%	3.24%	2.91%
Expected life			5 years	5 years 3 months 18 days	7 years	7 years
Expected volatility			49.80%	70.60%	77.20%	74.80%
Expected dividend yield	$ 0	$ 0