Stock-Based Compensation (Tables)

12 Months Ended

Jan. 02, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

				Weighted-
				average
		Weighted-		remaining
		average		contractual	Aggregate
	Options	exercise price		term (years)	intrinsic value
Outstanding at beginning of year	3,624,648	$	6.61
Granted	754,696		8.41
Exercised	(750,917)		4.42
Forfeited or expired	(146,035)		8.29
Outstanding at end of year	3,482,392	$	7.42	7.0	$	2,162
Exercisable at end of year	1,396,039	$	6.55	5.1	$	1,168

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	January 2, 2016	January 3, 2015	December 28, 2013
Dividend yield(1)	0%	0%	0%
Expected volatility(2)	50.1%	61.3%	63.1%
Risk-free interest rate(3)	1.9%	2.2%	1.3%
Expected life of options (years)(4)	6.5	6.5	6.5

(1)Determined based on expected annual dividend yield at the time of grant.

(2)Determined based on historical volatility of the Company’s common shares over the expected life of the option.

(3)Determined based on the yield on U.S. Treasury zero-coupon issues with maturity dates equal to the expected life of the option.

(4)Determined using simplified method, as the Company changed the term of its stock option grants from six years to 10 years commencing in 2012 and, as a result, historical exercise data may no longer provide a reasonable basis upon which to estimate expected life.

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]

					Vested		Weighted-	Total	Weighted-
	Exercise price range				outstanding		average price	outstanding	average price
Expiry date		Low		High	options		(vested)	options		(total)
2016	$	4.45	$	5.62	176,600	$	4.55	176,600	$	4.55
2017		4.99		7.72	395,000		7.02	515,050		7.03
2022		5.14		5.73	484,500		5.57	914,900		5.56
2023		7.09		8.23	264,400		7.51	764,350		7.49
2024		9.70		13.86	75,539		11.63	376,296		11.64
2025		5.26		11.55	-		-	735,196		8.45
					1,396,039	$	6.55	3,482,392	$	7.42

Schedule Of Share Based Compensation - RSU [Table Text Block]

The following table summarizes non-vested RSU activity during the year ended January 2, 2016:

		Weighted-
		average grant-
	RSUs	date fair value
Non-vested at beginning of year	67,932	$	11.41
Granted	64,487		10.07
Vested	(22,646)		11.42
Forfeited or expired	(5,217)		11.30
Non-vested at end of year	104,556	$	10.63

Schedule Of Share Based Compensation - PSU [Table Text Block]

The following table summarizes non-vested PSU activity during the year ended January 2, 2016:

		Weighted-
		average grant-
	PSUs	date fair value
Non-vested at beginning of year	97,780	$	11.30
Granted	135,120		10.15
Forfeited or expired	(1,452)		11.30
Non-vested at end of year	231,448	$	10.60