Restructuring Related and Impairment Charges (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 333,000	$ 1,791,000	$ 3,261,000
Facility Exit Costs [Member] | Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	300,000	400,000	500,000
Facility Exit Costs [Member] | Salisbury Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			600,000
Severance and Facility Exit Costs [Member] | Lithia Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,500,000	1,800,000
Severance and Facility Exit Costs [Member] | Hearth Products [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		400,000
Leasehold Improvements [Member] | Lithia Facility [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of real estate, non-cash transaction		200,000
Cost of Sales [Member] | Machinery and Equipment [Member] | Facility Exit Costs [Member] | Lithia Facility [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation		$ 300,000	$ 200,000