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Note 13 - Stock Incentive Plans (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010	Jan. 03, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)					3,230,000
Stock Option Expiration					10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years	4 years	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate		65.00%	65.00%	65.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term		6 years 3 months	6 years 3 months	6 years 3 months
Grant Date Fair Value of Options (in Dollars)		$ 1.2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value (in Dollars)	0	0.1	0.2
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	608,864	1,104,894
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (in Dollars)	4.6	2.5	2.6
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	$ 8.32	$ 6.22	$ 6.63
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in Shares)	87,962	77,151	83,646
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)	$ 4.3
Stock Options [Member]
Reduction in Number of Shares for Stock Award (in Shares)					1
Restricted Stock [Member]
Reduction in Number of Shares for Stock Award (in Shares)					1.27
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares)	278,308	455,640	402,656
Annual Board Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year	1 year	6 months
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					1 year
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		1.20%	2.10%	2.30%
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	$ 3.59	$ 5.31	$ 5.94
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					4 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		2.50%	3.40%	3.10%
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	$ 8.32	$ 7.94	$ 9.64

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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