Quarterly report pursuant to Section 13 or 15(d)

Restructuring Plan (Details)

v3.5.0.2
Restructuring Plan (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2016
Jul. 02, 2016
Jun. 27, 2015
Jul. 02, 2016
Jun. 27, 2015
Restructuring Cost and Reserve [Line Items]          
Restructuring charges   $ 1,663 $ 0 $ 1,663 $ 0
Employee termination benefits   200      
Restructuring reserve   400   400  
Other restructuring costs   200      
Restructuring expected cost   1,200   1,200  
Facility Closing [Member]          
Restructuring Cost and Reserve [Line Items]          
Proceeds from sale of fixed assets $ 1,700        
Restructuring expected cost   500   500  
Special Termination Benefits [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring charges   600      
Expanded Offshore Operations [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring expected cost   700   $ 700  
Inventories [Member] | Facility Closing [Member]          
Restructuring Cost and Reserve [Line Items]          
Impairment charge   100      
Machinery, Equipment and Supply Parts [Member] | Facility Closing [Member]          
Restructuring Cost and Reserve [Line Items]          
Impairment charge   $ 900