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Note 2 - Acquisition of Chicago Tube and Iron Company (Details) (USD $)
0 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 0 Months Ended
Jul. 02, 2011
Dec. 31, 2013
Dec. 31, 2011
May 18, 2011
Dr. McNeely [Member]
Dec. 31, 2011
Administrative And General [Member]
Jul. 02, 2011
Ancillary Acquisition Costs [Member]
Note 2 - Acquisition of Chicago Tube and Iron Company (Details) [Line Items]            
Number Of Operating Facilities   9        
Payments to Acquire Businesses, Gross $ 159,900,000   $ 159,856,000 $ 5,000,000   $ 9,900,000
Business Combination, Consideration Transferred 150,000,000          
Business Combination, Consideration Transferred, Liabilities Incurred 5,900,000          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents 11,100,000          
Business Combination, Acquisition Related Costs         $ 919,000