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
Mar. 31, 2013
Mar. 31, 2012
Consolidated Statement of Income    
Equity in gain (loss) of AMAK $ 298 $ (213) [1]
Income before income tax expense 3,131 3,062 [1]
Net income 2,120 1,995 [1]
Net income attributable to Arabian American Development Company 2,120 1,995 [1]
Net income per common share    
Basic (in dollars per share) $ 0.09 $ 0.08 [1]
Diluted (in dollars per share) $ 0.09 $ 0.08 [1]
Consolidated Statement of Stockholders' Equity    
Comprehensive income 2,175 2,066 [1]
Operating activities    
Net income attributable to Arabian American Development Company 2,120 1,995 [1]
Equity in gain (loss) of AMAK 298 (213) [1]
Scenario, Previously Reported [Member]
   
Consolidated Statement of Income    
Equity in gain (loss) of AMAK   0
Income before income tax expense   3,275
Net income   2,208
Net income attributable to Arabian American Development Company   2,208
Net income per common share    
Basic (in dollars per share)   $ 0.09
Diluted (in dollars per share)   $ 0.09
Consolidated Statement of Stockholders' Equity    
Comprehensive income   2,279
Operating activities    
Net income attributable to Arabian American Development Company   2,208
Equity in gain (loss) of AMAK   $ 0
[1] (Restated)