Restructuring Related and Impairment Charges (Details) (USD $)	3 Months Ended	12 Months Ended
	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Restructuring Cost and Reserve [Line Items]
Impairment of Real Estate			$ 500,000
Goodwill, impairment loss		0	(143,000)	(6,750,000)
Restructuring Reserve [Roll Forward]
Balance at beginning of period		2,632,000	5,958,000	379,000
Restructuring charges		3,261,000	3,902,000	13,334,000
Cash payments		(4,794,000)	(7,228,000)	(7,755,000)
Balance at end of period	2,632,000	1,099,000	2,632,000	5,958,000
Goodwill and Intangible Asset Impairment				25,000,000
Severance [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period		2,389,000	4,389,000	155,000
Restructuring charges		636,000	1,768,000	8,168,000
Cash payments		(1,957,000)	(3,768,000)	(3,934,000)
Balance at end of period	2,389,000	1,068,000	2,389,000	4,389,000
Facility Termination & Other Costs [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period		243,000	1,569,000	224,000
Restructuring charges		2,625,000	2,134,000	5,166,000
Cash payments		(2,837,000)	(3,460,000)	(3,821,000)
Balance at end of period	243,000	31,000	243,000	1,569,000
Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Goodwill, impairment loss	2,000,000	0	0	(6,750,000)
Office Furniture [Member] | Severance and Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				9,900,000
Office Furniture [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		500,000
Office Furniture [Member] | Other Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			1,600,000
Lithia Facility [Member] | Severance and Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		1,800,000
Salisbury Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		600,000
Salisbury Facility [Member] | Severance and Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			1,900,000
Hearth Products [Member]
Restructuring Cost and Reserve [Line Items]
Goodwill, impairment loss		0	(143,000)	0
Restructuring Reserve [Roll Forward]
Impairment of Long-Lived Assets Held For Sale			5,000,000
Hearth Products [Member] | Severance and Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		400,000	200,000	5,500,000
Hearth Products [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			100,000
Goodwill, impairment loss				600,000
Cost of Sales [Member] | Hearth Products [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation - Noncash				1,400,000
Cost of Sales [Member] | Machinery and Equipment [Member] | Office Furniture [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation			300,000	2,700,000
Cost of Sales [Member] | Machinery and Equipment [Member] | Lithia Facility [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation		200,000
Cost of Sales [Member] | Machinery and Equipment [Member] | Hearth Products [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation				1,200,000
Cost of Sales [Member] | Buildings, Machinery and Equipment [Member] | Salisbury Facility [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation			$ 2,300,000