Note 13 - Summary of Activity Under Two Stock Option Plans (Details) (USD $)	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Balance at 10/1/11 (in shares)	190,500	190,500	190,500	190,500
Balance at 10/1/11 (in shares)	92,992	119,405	143,821	159,562
Balance at 10/1/11 (in dollars per share)	$ 11.53	$ 11.30	$ 10.44	$ 9.84
Balance at 10/1/11 (in shares)	89,592	107,605	123,621	130,962
Balance at 10/1/11 (in dollars per share)	$ 11.40	$ 10.90	$ 9.71	$ 8.74
Exercised (in shares)	(26,091)	(24,416)	(15,741)
Expired Unexercised (in shares)	(322)