| | 2017 | | 2016 | | 2015 | | |||
Non-capital loss carry forwards | | $ | 12,169 | | $ | 11,392 | | $ | 10,942 | |
Capital losses | | | 631 | | | 1,260 | | | - | |
Investment tax credits | | | 1,651 | | | 1,651 | | | 1,651 | |
Marketable securities | | | - | | | - | | | 1,258 | |
Plant and equipment | | | 469 | | | 448 | | | 433 | |
Resource interests | | | 12,222 | | | 10,599 | | | 10,294 | |
Other | | | 756 | | | 871 | | | 776 | |
Net unrecognized deferred income tax asset | | $ | 27,898 | | $ | 26,221 | | $ | 25,354 | |