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Capital lease obligations (Tables)
12 Months Ended
Dec. 31, 2012
Leases, Capital [Abstract]  
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

Future payments on capital leases for the years ending December 31 are as follows:

 

(In thousands of U.S. dollars)   December 31,  
       
2013     87  
2014     87  
2015     85  
2016     13  
Total     274  
Less amounts representing interest     (18 )
Future payments on capital leases     256  
Less current portion     77  
Long  term portion     179