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Stockholders' Equity (Tables)

12 Months Ended

Dec. 29, 2012

Stockholders' Equity [Abstract]

Activity in stock option plan

						Outstanding Options
		Shares Available for Grant				Number of Shares				Aggregate Price				Weighted Average Exercise Price
FY 2009: Balances, January 2, 2010			862,157				1,583,508			$	6,169			$	3.91
Additional shares reserved			93,299
Options granted			(195,800	)			195,800				780				3.98
Options exercised			0				(34,558	)			(88	)			2.54
Options cancelled			126,684				(126,684	)			(955	)			7.54
Options expired			(126,203	)			0				0				0
FY 2010: Balances, January 1, 2011			760,137				1,618,066			$	5,906				3.65
Additional shares reserved			63,063
Options granted			(319,900	)			319,900				1,148				3.59
Options exercised			0				(99,291	)			(321	)			3.24
Options cancelled			72,274				(72,274	)			(353	)			4.88
Options expired			(70,353	)			0				0				0
FY 2011: Balances, December 31, 2011			505,221				1,766,401			$	6,380				3.61
Additional shares reserved			324,501
Options granted			(335,050	)			335,050				1,313				3.92
Options exercised			0				(174,631	)			(445	)			2.55
Options cancelled			356,277				(356,277	)			(1,550	)			4.35
Options expired			(108,971	)			0				0				0
FY 2012: Balances, December 29, 2012			741,978				1,570,543			$	5,698			$	3.63

Stock options outstanding and exercisable

		Options Outstanding												Options Vested and Exercisable
Range of Exercise Prices		Number of Shares Outstanding at December 29, 2012				Weighted Average Remaining Contractual Life				Weighted Average Exercise Price				Number of Shares Exercisable at December 29, 2012				Weighted Average Exercise Price
						(Years)
$0.82 - $1.00			159,645				2.71			$	0.90				158,855			$	0.90
$2.24 - $2.38			166,531				2.16			$	2.33				161,232			$	2.33
$2.41 - $2.78			185,237				2.06			$	2.56				185,237			$	2.56
$2.93 - $3.52			163,651				2.44			$	3.26				128,378			$	3.24
$3.53 - $3.75			147,000				5.35			$	3.66				55,031			$	3.64
$3.86 - $3.86			188,500				6.96			$	3.86				0			$	0.00
$3.89 - $4.31			226,073				4.98			$	4.11				114,659			$	4.16
$4.43 - $5.56			221,419				1.41			$	5.20				221,419			$	5.20
$5.69 - $9.79			108,487				1.19			$	7.33				108,487			$	7.33
$10.06 - $10.06			4,000				1.17			$	10.06				4,000			$	10.06
$0.82 - $10.06			1,570,543				3.34			$	3.63				1,137,298			$	3.58

Weighted average assumptions for fair value of options granted

		Employee Stock Option Plan
		FY 2012		FY 2011		FY 2010
Average risk free interest rate		0.68%		0.98%		2.03%
Expected life (in years)		4.55 years		4.70 years		4.75 years
Dividend yield		0		0		0
Average volatility		89.2%		92.2%		88.2%

Stock-based compensation expense

		FY 2012 Year Ended December 29, 2012				FY 2011 Year Ended December 31, 2011				FY 2010 Year Ended January 1, 2011
Cost of revenues		$	63			$	60			$	64
Research and development			77				76				93
Sales and marketing			105				112				116
General and administrative			143				230				215
Total stock-based compensation expense - continuing operations			388				478				488
Total stock-based compensation expense - discontinued operations			8				66				63
Total stock-based compensation expense		$	396			$	544			$	551

Stock options outstanding, exercisable and expected to vest

		Number of Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (Years)				Aggregate Intrinsic Value (thousands)
Options outstanding			1,570,543			$	3.63				3.34			$	1,013
Options vested and expected to vest			1,471,271			$	3.63				3.16			$	1,003
Options exercisable			1,137,298			$	3.58				2.25			$	980

Restricted stock units outstanding, vested and expected to vest

		Number of Shares				Weighted Average Remaining Contractual Life (years)				Aggregate Intrinsic Value (thousands)
As of December 29, 2012
Restricted stock units outstanding			55,999				0.94			$	211
Restricted stock units vested and expected to vest			48,545				0.91			$	183

Restricted stock units and awards

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding at January 1, 2011			0			$	0.00
Restricted stock units granted			90,189			$	3.49
Outstanding at December 31, 2011			90,189			$	3.49
Restricted stock units granted			55,999			$	3.85
Restricted stock units released			(15,189	)		$	3.95
Restricted stock units forfeited			(75,000	)		$	3.40
Outstanding at December 29, 2012			55,999			$	3.85

		Number of Shares				Weighted Average Grant Date Fair Value
Outstanding at January 1, 2011			0			$	0.00
Restricted stock awards granted			10,126			$	3.95
Outstanding at December 31, 2011			10,126			$	3.95
Restricted stock awards granted			10,666			$	3.75
Restricted stock awards released			(10,126	)		$	3.95
Outstanding at December 29, 2012			10,666			$	3.75

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