Earnings (loss) per share (Tables)

12 Months Ended

Dec. 29, 2018

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Basic and diluted loss per share were calculated as follows (shares in thousands):

			December 29, 2018		December 30, 2017		December 31, 2016
Numerator for basic loss per share:
	Loss from continuing operations, less amounts attributable
		to non-controlling interests	$	(109,205)	$	(135,320)	$	(50,618)
	Less: dividends and accretion on Series A Preferred Stock			(7,909)		(7,809)		(1,812)
	Loss from continuing operations attributable to SunOpta Inc.			(117,114)		(143,129)		(52,430)
	Loss from discontinued operations attributable to SunOpta Inc.			-		-		(570)
	Loss attributable to common shareholders		$	(117,114)	$	(143,129)	$	(53,000)

Denominator for basic loss per share:
	Basic weighted-average number of shares outstanding			87,082		86,355		85,569

Basic loss per share:
	From continuing operations		$	(1.34)	$	(1.66)	$	(0.61)
	From discontinued operations			-		-		(0.01)
	Basic loss per share		$	(1.34)	$	(1.66)	$	(0.62)

Numerator for diluted loss per share:
	Loss from continuing operations, less amounts attributable
		to non-controlling interests	$	(109,205)	$	(135,320)	$	(50,618)
	Less: dividends and accretion on Series A Preferred Stock⁽¹⁾			(7,909)		(7,809)		(1,812)
	Loss from continuing operations attributable to SunOpta Inc.			(117,114)		(143,129)		(52,430)
	Loss from discontinued operations attributable to SunOpta Inc.			-		-		(570)
	Loss attributable to common shareholders		$	(117,114)	$	(143,129)	$	(53,000)

Denominator for diluted loss per share:
	Basic weighted-average number of shares outstanding			87,082		86,355		85,569
	Dilutive effect of the following:
		Series A Preferred Stock⁽¹⁾		-		-		-
		Stock options⁽²⁾		-		-		-
	Diluted weighted-average number of shares outstanding			87,082		86,355		85,569

Diluted loss per share:
	From continuing operations		$	(1.34)	$	(1.66)	$	(0.61)
	From discontinued operations			-		-		(0.01)
	Diluted loss per share		$	(1.34)	$	(1.66)	$	(0.62)

(1) For the years ended December 29, 2018, December 30, 2017 and December 31, 2016, it was more dilutive to assume the Preferred Stock was not converted into Common Shares, and, therefore, the numerator of the diluted loss per share calculation was not adjusted to add back the dividends and accretion on the Preferred Stock and the denominator was not adjusted to include 11,333,333, 11,333,333 and 2,670,320 Common Shares issuable on an if-converted basis for the years ended December 29, 2018, December 30, 2017 and December 31, 2016, respectively.

(2) For the years ended December 29, 2018, December 30, 2017 and December 31, 2016, stock options to purchase 452,316, 815,952 and 66,166 Common Shares, respectively, were excluded from the calculation of diluted loss per share due to their anti-dilutive effect of reducing the loss per share. In addition, for the years ended December 29, 2018, December 30, 2017 and December 31, 2016, options to purchase 2,384,249, 2,540,189 and 2,321,448 Common Shares were anti-dilutive because the exercise prices of these options were greater than the average market price.