Fair Value of Certain Financial Assets and Liabilities	3 Months Ended
Mar. 30, 2012
Fair Value of Certain Financial Assets and Liabilities [Abstract]
Fair Value of Certain Financial Assets and Liabilities	4. Fair Value of Certain Financial Assets and Liabilities Level 1 financial assets and liabilities consist of unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. The Company’s cash equivalents consist primarily of funds in money market accounts, which are classified within Level 1 of the fair value hierarchy. Cash equivalents at March 30, 2012 and September 30, 2011 were $1.0 million and $23.0 million, respectively. Level 2 financial assets and liabilities consist of inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The Company had no financial assets or liabilities classified as Level 2 as of March 30, 2012 or September 30, 2011. Level 3 financial assets and liabilities consist of inputs that are both significant to the fair value measurement and unobservable, and consist of the Company’s warrant to purchase approximately 6.1 million shares of Mindspeed common stock. The warrant was valued using the Black-Scholes-Merton valuation model (see Note 5). The fair value of the Mindspeed warrant was $0.8 million and $1.7 million as of March 30, 2012 and September 30, 2011, respectively. The fair value of other financial instruments, which consists of the Company’s 11.25% senior secured notes due 2015, was $190.8 million as of March 30, 2012. The fair value of the 11.25% senior secured notes is based on an indicative bid price provided by the underwriter of the senior secured notes, and was 109.0% and 112.0% of par as of March 30, 2012 and September 30, 2011, respectively. There were no reclassification of investments between levels during the six fiscal months ended March 30, 2012. Other than the unrealized gains and losses related to the Company’s warrant to purchase 6.1 million shares of Mindspeed common stock, there were no significant realized or unrealized gains as of or during the six month period ended March 31, 2012.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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