Note 18 - Operations and Industry Segments and Geographic Areas (Details Textual) - USD ($)	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Number of Reportable Segments	2
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Another Customer [Member]
Concentration Risk, Percentage	18.00%	7.00%	16.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Former Customer [Member]
Concentration Risk, Percentage	6.00%	10.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Medical [Member] | Customer One [Member]
Concentration Risk, Percentage	24.00%	24.00%	22.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Medical [Member] | Another Customer [Member]
Concentration Risk, Percentage	11.00%	11.00%	11.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Custom Products [Member] | Customer One [Member]
Concentration Risk, Percentage	57.00%	29.00%	66.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Custom Products [Member] | Former Customer [Member]
Concentration Risk, Percentage	19.00%	40.00%
Workforce Subject to Collective Bargaining Arrangements [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk, Percentage	18.00%
CANADA
Net Assets	$ 11,000,000	$ 10,000,000