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Subsidiary Bankruptcy, Deconsolidation and Sale (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Aug. 01, 2017
Apr. 30, 2017
Apr. 25, 2017
Subsidiary Bankruptcy and Deconsolidation [Line Items]                
Loss on deconsolidation of subsidiary (Note 3) $ 1,870   $ 0 $ 3,505 $ 0      
Accounts receivable – related party   $ 400            
AREC [Member]                
Subsidiary Bankruptcy and Deconsolidation [Line Items]                
Loss on deconsolidation of subsidiary (Note 3)   1,600            
Adams Resources Exploration Corporation [Member]                
Subsidiary Bankruptcy and Deconsolidation [Line Items]                
DIP financing amount               $ 1,250
Adams Resources Exploration Corporation [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Subsidiary Bankruptcy and Deconsolidation [Line Items]                
DIP financing, interest rate               2.00%
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | AREC [Member]                
Subsidiary Bankruptcy and Deconsolidation [Line Items]                
Expected transaction price   $ 5,000       $ 5,200 $ 5,000  
Loss on disposal $ 1,900