REVOLVING CREDIT FACILITY (Notes)	9 Months Ended
REVOLVING CREDIT FACILITY (Notes)	Sep. 28, 2014
Debt Disclosure [Abstract]
Revolving Credit Facility	REVOLVING CREDIT FACILITY On April 12, 2013, we entered into a three-year $25.0 million senior secured revolving credit facility with Silicon Valley Bank. As of September 28, 2014, we had no outstanding borrowing under the Credit Facility. On October 21, 2014, we entered into Amendment Agreement No. 4 with Silicon Valley Bank, which retroactively lowered our required minimum consolidated earnings before interest, tax, depreciation and amortization ("EBITDA") to $2.0 million for the two consecutive quarters ended September 28, 2014, and established a minimum quick ratio equal to or greater than 1.00. Based on this amendment, we were in compliance with all financial covenants as of September 28, 2014. Refer to Note 12. Subsequent Event, for additional information related to this amendment.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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