Note 11 - Share-Based Compensation (Details) - Stock Option Activity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Apr. 04, 2015
Note 11 - Share-Based Compensation (Details) - Stock Option Activity [Line Items]
Options outstanding as of January 3, 2015 (in Shares)	53,000
Options outstanding as of January 3, 2015	$ 7.65
Options exercised (in Shares)	(3,500)
Options exercised	$ 4.30
Options outstanding as of April 4, 2015 (in Shares)	49,500
Options outstanding as of April 4, 2015	$ 7.88
Options exercisable as of April 4, 2015 (in Shares)	27,000
Options exercisable as of April 4, 2015	$ 9.47
Intrinsic value of outstanding stock options as of April 4, 2015 (in Dollars)	$ 15
Intrinsic value of stock options exercised for the thirteen week period ended April 4, 2015 (in Dollars)	$ 8
Minimum [Member]
Note 11 - Share-Based Compensation (Details) - Stock Option Activity [Line Items]
Options outstanding price range at April 4, 2015	$ 5.27
Maximum [Member]
Note 11 - Share-Based Compensation (Details) - Stock Option Activity [Line Items]
Options outstanding price range at April 4, 2015	$ 9.81

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The exercise price as of stock options outstanding at the balance sheet date.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-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 price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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