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
|
|