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 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Consolidated Statement of Income        
Equity in loss of AMAK $ 4,732 $ (302) [1] $ 3,700 $ (515) [1]
Income before income tax expense 9,444 5,050 [1] 15,241 8,111 [1]
Net income 6,309 3,472 [1] 11,095 5,467 [1]
Net Income Attributable to Arabian American Development Company 6,309 3,472 [1] 11,095 5,467 [1]
Net income per common share        
Basic (in dollars per share) $ 0.26 $ 0.14 [1] $ 0.46 $ 0.23 [1]
Diluted (in dollars per share) $ 0.26 $ 0.14 [1] $ 0.45 $ 0.22 [1]
Consolidated Statement of Comprehensive Income        
Net income 6,309 3,472 [1] 11,095 5,467 [1]
Comprehensive income 6,381 3,473 [1] 11,222 5,541 [1]
Operating activities        
Net Income Attributable to Arabian American Development Company 6,309 3,472 [1] 11,095 5,467 [1]
Equity in loss of AMAK (4,732) 302 [1] (3,700) 515 [1]
Scenario, Previously Reported [Member]
       
Consolidated Statement of Income        
Equity in loss of AMAK   0   0
Income before income tax expense   5,352   8,626
Net income   3,774   5,982
Net Income Attributable to Arabian American Development Company   3,774   5,982
Net income per common share        
Basic (in dollars per share)   $ 0.16   $ 0.25
Diluted (in dollars per share)   $ 0.15   $ 0.24
Consolidated Statement of Comprehensive Income        
Net income   3,774   5,982
Comprehensive income   3,775   6,056
Operating activities        
Net Income Attributable to Arabian American Development Company   3,774   5,982
Equity in loss of AMAK   $ 0   $ 0
[1] (restated)