Note 2 - Acquisition of Chicago Tube and Iron Company (Detail) - Pro Forma (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Net sales (in Dollars)	$ 1,381,760	$ 991,773
Net income (in Dollars)	$ 28,328	$ 3,077
Basic earnings per common share	$ 2.59	$ 0.28
Diluted earnings per common share	$ 2.59	$ 0.28