Composition of Certain Financial Statement Captions (Details) (USD $)	Sep. 30, 2012	Oct. 02, 2011
Accounts receivable and unbilled revenues, gross	$ 1,045,800	$ 1,103,000
Less allowance for doubtful accounts	(51,300)	(13,800)
Accounts receivable and unbilled revenues, net	994,500	1,089,200
United States Government [Member]
Accounts receivable and unbilled revenues, gross	520,800	931,500
Other customers
Accounts receivable and unbilled revenues, gross	$ 525,000	$ 171,500