STOCK-BASED COMPENSATION - Summay of Award Activity under the Stock Option Plans and Changes (Details) (USD $)	3 Months Ended
Mar. 29, 2014
Shares
Beginning Balance	558,850
Options forfeited/cancelled	0
Options exercised	(34,250)
Ending Balance	524,600
Weighted Average Exercise Price
Beginning Balance	$ 5.09
Options forfeited/cancelled	$ 0.00
Options exercised	$ 3.75
Ending Balance	$ 5.18
Equity Incentive Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	1.9

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Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

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.

+ References

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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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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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

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