Note 18 - Operations and Industry Segments and Geographic Areas (Details Textual) - USD ($)	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Another Customer [Member] | Medical [Member]
Concentration Risk, Percentage	11.00%	11.00%	9.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Two Combined Customers [Member] | Medical [Member]
Concentration Risk, Percentage	24.00%	22.00%	21.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member] | Custom Products [Member]
Concentration Risk, Percentage	29.00%	66.00%	88.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | New Customer [Member] | Custom Products [Member]
Concentration Risk, Percentage	40.00%
Workforce Subject to Collective Bargaining Arrangements [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage	14.00%
Canada [Member]
Net Assets	$ 10,000,000
Number of Reportable Segments	2