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Note 4 - Goodwill and Intangible Assets (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2014
USD ($)
Jun. 30, 2015
USD ($)
$ / T
Note 4 - Goodwill and Intangible Assets (Details) [Line Items]    
Percentage of Decrease in Price of Hot-Rolled Carbon Steel   22.00%
Amount Decrease Per Ton in Price of Hot-Rolled Carbon Steel (in Dollars per US Ton) | $ / T   130
Goodwill, Impairment Loss $ 16,500 $ 16,451
Finite-Lived Intangible Assets, Amortization Expense, Year Two   889
Finite-Lived Intangible Assets, Amortization Expense, Year Four   889
Finite-Lived Intangible Assets, Amortization Expense, Year Five   889
Finite-Lived Intangible Assets, Amortization Expense, after Year Five   889
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year   889
Finite-Lived Intangible Assets, Amortization Expense, Year Three   5
Trade Names [Member]    
Note 4 - Goodwill and Intangible Assets (Details) [Line Items]    
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)   $ 8,000