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Earnings per share | 12 Months Ended
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Dec. 28, 2013
Earnings Per Share Abstract |
Earnings Per Share Text Block | 15. Earnings (L oss) P er S hare Earnings (loss) per share were calculated as follows:
|  |  |  | December 28, 2013 | December 29, 2012 | December 31, 2011
Earnings (loss) from continuing operations |  |  |  |  |  |
| attributable to SunOpta Inc. | $ | (8,164) | $ | 22,968 | $ | 16,230
Earnings (loss) from discontinued operations, |  |  |  |  |  |
| net of taxes |  | (360) |  | 1,256 |  | (10,934)
Earnings (loss) attributable to SunOpta Inc. | $ | (8,524) | $ | 24,224 | $ | 5,296
Basic weighted-average number of shares |  |  |  |  |  |
| outstanding |  | 66,288,147 |  | 65,897,969 |  | 65,644,372
Dilutive potential of the following: |  |  |  |  |  |
| Employee/director stock options |  | 1,165,133 |  | 551,723 |  | 705,332
| Warrants |  | 378,845 |  | 161,705 |  | 233,445
Diluted weighted-average number of shares |  |  |  |  |  |
| outstanding |  | 67,832,125 |  | 66,611,397 |  | 66,583,149
Earnings (loss) per share - basic: |  |  |  |  |  |
| - from continuing operations | $ | (0.12) | $ | 0.35 | $ | 0.25
| - from discontinued operations |  | (0.01) |  | 0.02 |  | (0.17)
|  |  |  | $ | (0.13) | $ | 0.37 | $ | 0.08
Earnings (loss) per share - diluted: |  |  |  |  |  |
| - from continuing operations | $ | (0.12) | $ | 0.34 | $ | 0.24
| - from discontinued operations |  | (0.01) |  | 0.02 |  | (0.16)
|  |  |  | $ | (0.13) | $ | 0.36 | $ | 0.08
For the year s ended December 28, 2013, December 29, 2012 and December 31, 2011, options to purchase nil, 2,045,200 an d 1,355,700 common shares, respectively, have been excluded from the calculation of potential dilutive common shares due to their anti-dilutive effect. For the year ended December 28, 2013, all potential dilutive common shares were excluded from the calculation of diluted loss per share due to their anti-dilutive effect of reducing the loss per share.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 + Details
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