Valuation and Qualifying Accounts (Details) - USD ($)		12 Months Ended
		Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Allowance for Doubtful Accounts [Member]
Reserve for uncollectible accounts		$ 302,000	$ 263,000	$ 233,000
Reserve for uncollectible accounts		38,776	128,925	91,623
Reserve for uncollectible accounts	[1]	192,776	89,925	61,623
Reserve for uncollectible accounts		148,000	302,000	263,000
Inventory Valuation Reserve [Member]
Reserve for uncollectible accounts		497,000	720,000	595,000
Reserve for uncollectible accounts		$ 73,000	90,803	145,000
Reserve for uncollectible accounts	[2]		313,803	20,000
Reserve for uncollectible accounts		$ 570,000	$ 497,000	$ 720,000

[1] Uncollectible accounts written off

[2] Inventory disposed of