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Note 12 - Share-Based Compensation (Details) - Stock Option Activity (USD $)	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
2014
Options Outstanding			798,171	764,034
Exercisable			585,769	649,412
Available for Grant			263,424	437,797
Weighted-Average Exercise Price (in Dollars per share)			$ 5.97	$ 5.84
Options Outstanding	755,617	918,007	755,617	918,007
Exercisable	615,792	626,771	615,792	626,771
Available for Grant	276,635	264,549	276,635	264,549
Weighted-Average Exercise Price (in Dollars per share)	$ 6.09	$ 5.88	$ 6.09	$ 5.88
Options Outstanding, Forfeited/cancelled/expired			(25,211)	(51,502)
Available for Grant, Forfeited/cancelled/expired			24,211	51,502
Weighted-Average Exercise Price, Forfeited/cancelled/expired (in Dollars per share)			$ 5.19	$ 6.17
Exercised	(500)	(19,275)	(28,343)	(19,275)
Exercised (in Dollars per share)			$ 4.73	$ 6.54
Options Outstanding, Granted	3,000	3,000	11,000	224,750
Available for Grant, Granted			(11,000)	(224,750)
Weighted-Average Exercise Price, Granted (in Dollars per share)			$ 9.18	$ 6.16

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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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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