Note 4 - Acquisitions (Details) - Estimated fair values of assets acquired and liabilities assumed (USD $) In Thousands, unless otherwise specified	3 Months Ended		1 Months Ended
	Dec. 31, 2012	Mar. 02, 2012 Decor Mfg., LLC [Member]	Jul. 23, 2012 Gustafson Lighting [Member]	Sep. 14, 2012 Creative Wood Designs, Inc. [Member]	Oct. 26, 2012 Middlebury Hardwood Products, Inc. [Member]
Note 4 - Acquisitions (Details) - Estimated fair values of assets acquired and liabilities assumed [Line Items]
Trade receivables		$ 1,280	$ 982	$ 927	$ 1,872
Inventories		903	1,262	1,423	1,719
Property, plant and equipment		400	1,221	1,429	7,171
Prepaid expenses		22	20	24	144
Accounts payable and accrued liabilities		(1,375)	(816)	(1,570)	(1,223)
Other liabilities				(958)
Intangible assets		1,663	337	757	6,470
Gain on acquisition of business	(200)		(223)
Goodwill		1,440		994	3,609
Total net purchase price		$ 4,333	$ 2,783	$ 3,026	$ 19,762