Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.10.0.1
Summary of Significant Accounting Policies (Details)
 12 Months Ended
Dec. 29, 2018
Machinery and equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 4 years
Machinery and equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 12 years
Office furniture and equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 3 years
Office furniture and equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 10 years
Building and land improvements [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 7 years
Building and land improvements [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 40 years
Buildings [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 25 years
Buildings [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life 40 years