Quarterly report pursuant to sections 13 or 15(d)

INVESTMENT IN AL MASANE AL KOBRA MINING COMPANY (AMAK) (Details)

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INVESTMENT IN AL MASANE AL KOBRA MINING COMPANY (AMAK) (Details)
3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Dec. 31, 2013
USD ($)
Mar. 31, 2014
AMAK [Member]
USD ($)
Mar. 31, 2013
AMAK [Member]
USD ($)
Mar. 31, 2012
AMAK [Member]
USD ($)
Dec. 31, 2013
AMAK [Member]
USD ($)
Mar. 31, 2014
AMAK [Member]
SAR
Mar. 31, 2014
AMAK [Member]
USD ($)
Dec. 31, 2013
AMAK [Member]
USD ($)
Investment in Al Masane Al Kobra Mining Company Amak [Line Items]                    
Investment in AMAK                 $ 53,700,000 $ 54,100,000
Exchange rate               3.75    
Outstanding advance to AMAK 536,000   536,000             500,000
Schedule of Equity Method Investments [Line Items]                    
Percentage investment in AMAK (in hundredths)       35.00%            
Company's share of income (loss) reported by AMAK (687,000) 2,627,000   (1,949,000) 7,120,000 (577,000)        
Amortization of difference between Company's investment in AMAK and Company's share of net assets of AMAK 337,000 337,000                
Equity in earnings of AMAK (350,000) 2,964,000                
Results of Operations [Abstract]                    
Sales       267,000 31,162,000 0        
Gross Profit       639,000 9,906,000 0        
General, administrative and other expenses       2,588,000 2,786,000 577,000        
Net Income (loss) (687,000) 2,627,000   (1,949,000) 7,120,000 (577,000)        
Financial Position [Abstract]                    
Current assets       41,050,000     32,923,000      
Noncurrent assets       264,431,000     264,997,000      
Total assets       305,481,000     297,920,000      
Current liabilities       27,565,000     22,497,000      
Long term liabilities       80,268,000     75,826,000      
Shareholders' equity       197,648,000     199,597,000      
Total liabilities and Shareholders' equity       $ 305,481,000     $ 297,920,000