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Stockholders' Equity (Tables)

12 Months Ended

Jan. 01, 2016

Schedule Of Compensation Cost [Table Text Block]

The cost that has been charged against income for stock-based compensation is set forth below (in thousands):

		Fiscal Year Ended
		January 1, 2016			January 2, 2015			January 3, 2014
Employee stock options		$	2,306		$	2,842		$	2,683
Restricted stock			485			935			999
Restricted stock units			452			795			589
Consultant compensation			61			91			218
Total		$	3,304		$	4,663		$	4,489

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

The Company recorded stock-based compensation expense in the following categories on the accompanying consolidated statements of operations (in thousands):

		Fiscal Year Ended
		January 1, 2016			January 2, 2015			January 3, 2014
Cost of Sales		$	52		$	108		$	77
General and administrative			2,090			2,552			2,586
Marketing and selling			696			1,065			1,167
Research and development			466			938			659
Total stock-based compensation expense			3,304			4,663			4,489
Amounts capitalized as part of inventory			516			306			232
Total stock-based compensation		$	3,820		$	4,969		$	4,721

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

The risk-free rate is based on the U.S. Treasury yield curve corresponding to the expected term at the time of the grant.

		Fiscal Year Ended
		January 1, 2016			January 2, 2015			January 3, 2014
Expected dividend yield			0	%		0	%		0	%
Expected volatility			57	%		55	%		71	%
Risk-free interest rate			1.59	%		1.29	%		0.73	%
Expected term (in years)			5.57			4.12			4.12

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

A summary of option activity under the Plan for the year ended January 1, 2016 is presented below:

Options		Shares (000’s)			Weighted- Average Exercise Price			Weighted- Average Remaining Contractual Term (years)			Aggregate Intrinsic Value (000’s)
Outstanding at January 2, 2015			3,175		$	7.79
Granted			1,155			7.81
Exercised			(476)			4.56
Forfeited or expired			(231)			10.57
Outstanding at January 1, 2016			3,623		$	8.02			6.59		$	3,562
Exercisable at January 1, 2016			2,075		$	7.15			4.85		$	3,352

Share-based Compensation, Performance Shares Award Unvested Activity [Table Text Block]

A summary of unvested options activity under the Plan for the year ended January 1, 2016 is presented below:

Options		Shares (000’s)			Weighted- Average Grant-Date Fair Value
Unvested at January 2, 2015			1,090		$	5.92
Granted during the year			1,155			4.14
Forfeited or expired during the year			(135)			4.69
Vested during the year			(562)			5.29
Unvested at January 1, 2016 (see Note 18)			1,548		$	4.34

Restricted Stock [Member]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

A summary of restricted stock activity for the year ended January 1, 2016 is presented below:

		Shares (000’s)			Weighted Average Grant-Date Fair Value per Share
Outstanding at January 2, 2015			247		$	9.41
Granted			34			8.62
Vested			(142)			11.88
Forfeited or expired			(15)			6.26
Outstanding at January 1, 2016 (see Note 18)			124		$	6.97

Restricted Stock Units (RSUs) [Member]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

A summary of restricted stock units’ activity for the year ended January 1, 2016 is presented below:

		Units (000’s)			Weighted Average Grant-Date Fair Value per Share
Outstanding at January 2, 2015			156		$	15.14
Granted			230			7.60
Vested			(16)			9.20
Forfeited or expired			(31)			15.20
Outstanding at January 1, 2016 (see Note 18)			339		$	10.44

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