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	Sep. 06, 2013 Frontline [Member]	Sep. 06, 2013 Premier [Member]	Sep. 20, 2013 Goshen, Indiana Based West Side [Member]	Mar. 02, 2012 Decor Mfg., LLC [Member]	Jul. 23, 2012 Gustafson Lighting [Member]	Sep. 15, 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		$ 1,674	$ 762	$ 913	$ 1,280	$ 982	$ 927	$ 1,872
Inventories		233	347	1,463	903	1,262	1,423	1,719
Property, plant and equipment		1,058	588	324	400	1,221	1,429	7,171
Prepaid expenses		21		79	22	20	24	144
Accounts payable and accrued liabilities		(2,693)	(1,525)	(2,071)	(1,375)	(816)	(1,570)	(1,223)
Other liabilities							(958)
Intangible assets		2,092	1,209	5,462	1,663	337	757	6,470
Gain on acquisition of business	(200)					(223)
Goodwill		2,795	1,239	2,574	1,440		994	3,609
Total net purchase price		$ 5,180	$ 2,620	$ 8,744	$ 4,333	$ 2,783	$ 3,026	$ 19,762