Quarterly report pursuant to sections 13 or 15(d)

CHANGE IN ACCOUNTING PRINCIPLE FOR INVESTMENT IN AMAK (Details)

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CHANGE IN ACCOUNTING PRINCIPLE FOR INVESTMENT IN AMAK (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Consolidated Statement of Income        
Equity in loss of AMAK $ 1,302 $ (528) [1] $ 8,998 $ (1,043) [1]
Income before income tax expense 7,593 4,768 [1] 22,834 12,879 [1]
Net income 5,221 3,004 [1] 16,315 8,471 [1]
Net Income Attributable to Arabian American Development Company 5,221 3,004 [1] 16,315 8,471 [1]
Net income per common share        
Basic (in dollars per share) $ 0.22 $ 0.13 [1] $ 0.68 $ 0.35 [1]
Diluted (in dollars per share) $ 0.21 $ 0.12 [1] $ 0.66 $ 0.34 [1]
Consolidated Statement of Comprehensive Income        
Net income 5,221 3,004 [1] 16,315 8,471 [1]
Comprehensive income 5,268 3,033 [1] 16,489 8,574 [1]
Operating activities        
Net Income Attributable to Arabian American Development Company 5,221 3,004 [1] 16,315 8,471 [1]
Equity in loss of AMAK (1,302) 528 [1] (8,998) 1,043 [1]
Scenario, Previously Reported [Member]
       
Consolidated Statement of Income        
Equity in loss of AMAK   0   0
Income before income tax expense   5,296   13,922
Net income   3,532   9,514
Net Income Attributable to Arabian American Development Company   3,532   9,514
Net income per common share        
Basic (in dollars per share)   $ 0.15   $ 0.40
Diluted (in dollars per share)   $ 0.14   $ 0.38
Consolidated Statement of Comprehensive Income        
Net income   3,532   9,514
Comprehensive income   3,561   9,617
Operating activities        
Net Income Attributable to Arabian American Development Company   3,532   9,514
Equity in loss of AMAK   $ 0   $ 0
[1] (restated)