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Note 4 - Stock-based Compensation (Details) - Summary of the Balance and Activity for the Plans Related to Stock Options	6 Months Ended
	Jul. 04, 2015 shares
Restricted Stock [Member]
Note 4 - Stock-based Compensation (Details) - Summary of the Balance and Activity for the Plans Related to Stock Options [Line Items]
Restricted Stock	284,511
Granted	98,926
Vested	200,302
Forfeited	33,787
Employee Stock Option [Member]
Note 4 - Stock-based Compensation (Details) - Summary of the Balance and Activity for the Plans Related to Stock Options [Line Items]
Options	609,043
Granted	68,826
Exercised	120,440
Forfeited	14,594
Canceled or expired	39,200

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 10



-Section 50



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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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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.

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

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