Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

v3.8.0.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 110,879 $ 107,088
Less accumulated depreciation and amortization (68,173) (63,585)
Property, plant and equipment, net $ 42,706 43,503
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 $ 572 572
Buildings    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Property, plant and equipment, gross $ 2,989 3,369
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Property, plant and equipment, gross $ 75,838 72,068
Computers and software    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 20,128 20,889
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 $ 2,251 1,977
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 5,275 3,686
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 $ 791 808
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 3,035 $ 3,719