Major Customers and Export Sales - Breakdown of Foreign and Domestic Net Sales (Detail) (USD $)	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Schedule Of Net Sales By Geographical Segment [Line Items]
Total sales	$ 1,293,478	$ 545,759	$ 3,802,198	$ 2,142,455
Domestic [Member]
Schedule Of Net Sales By Geographical Segment [Line Items]
Total sales	1,262,434	542,699	3,525,188	2,059,652
Foreign [Member]
Schedule Of Net Sales By Geographical Segment [Line Items]
Total sales	$ 31,044	$ 3,060	$ 277,010	$ 82,803