12. Other non-current assets


  31 December 2013 31 December 2012 31 December 2011
Non–current advances, given for investing activities 1,872  4,502 12,611
Non–current advances, given for operating activities 956  398 258
Non–current receivables 1,264  659 865
Other non–current assets –  2 234
Less: doubtful debt allowance (102)  (92) (127)
Total other non–current assets 3,990  5,469 13,841