Note 5 - Restructuring Charges and Acquisition Costs (Details) - Summaries of the Restructuring Activities and Associated Costs Incurred (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 29, 2012
2012
Liability as of October 1, 2011		$ 254
Restructuring charges, net	1,247	832
Cash payments		(1,097)
Non-cash charges		11
Liability as of September 29, 2012		0
Employee Severance [Member]
2012
Liability as of October 1, 2011		65
Restructuring charges, net	1,200	(40)
Cash payments		(25)
Asset Impairment Charges [Member]
2012
Restructuring charges, net		(11)
Non-cash charges		11
Facility Closing [Member]
2012
Liability as of October 1, 2011		77
Restructuring charges, net		139
Cash payments		(216)
Equipment Relocation Costs [Member]
2012
Liability as of October 1, 2011		112
Restructuring charges, net		744
Cash payments		$ (856)