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Restructuring and Impairment Charges (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 549 $ 3,638 $ 333
Goodwill impairment 2,963 22,802  
Office Furniture [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 400 8,800  
Goodwill impairment 2,963 22,802  
Hearth Products [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 900    
Goodwill impairment 0 $ 0  
Facility Exit Costs [Member] | Office Furniture [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges     $ 300
Severance and Facility Exit Costs [Member] | Florence Chicago Nalagarh [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 3,600    
Cost of Sales [Member] | Hearth Products [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 800    
Cost of Sales [Member] | Machinery and Equipment [Member] | Facility Exit Costs [Member] | Florence Chicago Nalagarh [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring accelerated depreciation costs 5,200    
Restructuring and Impairment Charges [Member]      
Restructuring Cost and Reserve [Line Items]      
Goodwill impairment $ 11,200