Note 4 - Acquisitions (Details) (USD $)	3 Months Ended		6 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended		1 Months Ended
	Dec. 31, 2012	Jul. 01, 2012	Jul. 01, 2012	Mar. 31, 2012 Decor Mfg., LLC [Member]	Jul. 01, 2012 Decor Mfg., LLC [Member]	Jul. 01, 2012 Decor Mfg., LLC [Member]	Mar. 02, 2012 Decor Mfg., LLC [Member]	Jul. 23, 2012 Gustafson Lighting [Member]	Jul. 31, 2012 Gustafson Lighting [Member]	Sep. 30, 2012 Creative Wood Designs, Inc. [Member]	Oct. 31, 2012 Middlebury Hardwood Products, Inc. [Member]
Note 4 - Acquisitions (Details) [Line Items]
Business Combination, Consideration Transferred				$ 4,300,000					$ 2,800,000	$ 3,000,000	$ 19,800,000
Stock Issued During Period, Shares, New Issues (in Shares)				100,000
Stock Issued During Period, Value, New Issues				600,000
Business Acquisition, Share Price (in Dollars per share)							$ 6.42
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									3,000,000
Business Combination, Bargain Purchase, Gain Recognized, Amount	200,000							223,000
Business Acquisition Pro Forma Amortization Expense		200,000	400,000
Business Acquisition, Pro Forma Revenue		$ 123,228,000	$ 237,678,000		$ 5,700,000	$ 8,200,000