Note 11 - Share Based Compensation (Detail) - Information about stock options outstanding (USD $)				12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Dec. 29, 2012 Range 1 [Member]	Dec. 29, 2012 Range 2 [Member]	Dec. 29, 2012 Range 3 [Member]	Dec. 29, 2012 Range 4 [Member]
Lower Range of Exercise Price				$ 2.50	$ 4.16	$ 6.44	$ 9.81
Upper Range of Exercise Price				$ 3.48	$ 5.62	$ 9.16	$ 9.81
Number of Options Outstanding (in Shares)	307,400	916,594	1,101,594	8,500	256,400	17,500	25,000
Number of Options Vested (in Shares)	252,400			8,500	201,400	17,500	25,000
Weighted-Average Remaining Contractual Life, Outstanding				5 years 25 days	4 years 51 days	3 years 346 days	4 years 200 days
Weighted-Average Remaining Contractual Life, Vested				5 years 25 days	2 years 240 days	3 years 346 days	4 years 200 days
Weighted-Average Exercise Price, Outstanding	$ 5.34	$ 4.24	$ 4.10	$ 2.79	$ 4.80	$ 8.01	$ 9.81
Weighted-Average Exercise Price, Vested				$ 2.79	$ 4.60	$ 8.01	$ 9.81

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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