Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

v3.10.0.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 126,132 $ 110,879
Less accumulated depreciation and amortization (74,018) (68,173)
Property, plant and equipment, net $ 52,114 42,706
Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 25 years  
Land and land improvements    
Property, Plant and Equipment [Line Items]    
Estimated useful life 25 years  
Property, plant and equipment, gross $ 569 572
Buildings    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Property, plant and equipment, gross $ 3,096 2,989
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Property, plant and equipment, gross $ 90,565 75,838
Computers and software    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 20,724 20,128
Computers and software | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Computers and software | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Property, plant and equipment, gross $ 3,073 2,251
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 5,702 5,275
Leasehold improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Leasehold improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Vehicles and related equipment    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Property, plant and equipment, gross $ 754 791
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 1,649 $ 3,035