THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Jun. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Year	Fiscal Year Our fiscal year is October 1 through September 30.
Basis of Presentation	Basis of Presentation The interim unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Securities and Exchange Commission (“SEC”) Form 10-Q and Article 10 of SEC Regulation S-X. They do not include all of the information and footnotes required by GAAP for complete financial statements. Therefore, these financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto for the year ended September 30, 2011, included in our Annual Report on Form 10-K filed with the SEC on December 6, 2011. The consolidated financial statements included herein are unaudited. However, they contain all normal recurring accruals and adjustments that, in the opinion of management, are necessary to present fairly our consolidated financial position at June 30, 2012 and September 30, 2011, the consolidated results of our operations for the three and nine months ended June 30, 2012 and 2011, the consolidated cash flows for the nine months ended June 30, 2012 and 2011, and the changes in our stockholders’ deficit for the nine months ended June 30, 2012. The results of operations for the three and nine months ended June 30, 2012 are not necessarily indicative of the results to be expected for future quarters or the full year.
Reclassifications	Reclassifications Certain reclassifications have been made to prior year amounts and related footnotes to conform to current-year presentation with no changes to stockholders’ deficit amounts as of June 30, 2011 or net income (loss) for the three months and nine months ended June 30, 2011
Use of Estimates	Use of Estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and disclosures made in the accompanying notes to the unaudited consolidated financial statements. Management regularly evaluates estimates and assumptions related to revenue recognition, allowances for doubtful accounts, warranty reserves, inventory reserves, stock-based compensation, derivative valuation, purchased intangible asset valuations and useful lives, and deferred income tax asset valuation allowances. These estimates and assumptions are based on current facts, historical experience and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. The actual results we experience may differ materially and adversely from our original estimates. To the extent there are material differences between the estimates and the actual results, our future results of operations will be affected.
Revenue Recognition, Product Revenues	Product revenues In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 605, Revenue Recognition, we recognize product revenue when the following fundamental criteria are met: (i) persuasive evidence of an arrangement exists; (ii) delivery has occurred; (iii) the price to the customer is fixed or determinable; and (iv) collection of the sales price is reasonably assured. Delivery occurs when goods are shipped and title and risk of loss transfer to the customer, in accordance with the terms specified in the arrangement with the customer. Revenue recognition is deferred in all instances where the earnings process is incomplete. A portion of our product sales is made through distributors under agreements allowing for pricing credits and/or right of return. Our past history with these pricing credits and/or right of return provisions prevent us from being able to reasonably estimate the final price of our inventory to be sold and the amount of inventory that could be returned pursuant to these agreements. As a result, the fixed and determinable revenue recognition criterion has not been met at the time we deliver products allowing for pricing credits or right of returns. Accordingly, product revenue from sales made through these distributors is not recognized until the distributors ship the product to their customers. We also maintain inventory, or hub, arrangements with certain customers. Pursuant to these arrangements, we deliver products to a customer or a designated third-party warehouse based upon the customer’s projected needs, but do not recognize revenue unless and until the customer reports that it has removed our product from the warehouse and taken title and risk of loss. From time-to-time, we may ship goods to our distributors with no pricing credits and/or no or limited right of return. Under these circumstances, at the time of shipment, product prices are fixed or determinable and the amount of future returns and pricing allowances to be granted in the future can be reasonably estimated and are accrued. Accordingly, revenues are recorded net of these estimated amounts.
Revenue Recognition, Intellectual Property Revenues	Intellectual property revenues We derive intellectual property (“IP”) revenues from the license of our IP, maintenance and support, and royalty revenue following the sale by our licensees of products incorporating the licensed technology. We enter into IP licensing agreements that generally provide licensees the right to incorporate our IP components in their products with terms and conditions that vary by licensee. Our IP licensing agreements may include multiple elements with an IP license bundled with support services. For such multiple element IP licensing arrangements, we follow the guidance in ASC Topic 605-025, Multiple-Element Arrangements, to determine whether there is more than one unit of accounting. We recognize revenue from the sale of patents when there is persuasive evidence of an arrangement, fees are fixed or determinable, delivery has occurred, and collectability is reasonably assured. All of the requirements are generally fulfilled upon execution of the patent sale arrangement. License and contract revenues are recorded upon delivery of the technology when there is persuasive evidence of an arrangement, fees are fixed or determinable, delivery has occurred, and collectability is reasonably assured. Other than maintenance and support, there is no continuing obligation under these arrangements after delivery of the IP. Deferred revenue is created when we bill a customer in accordance with a contract prior to having met the requirements for revenue recognition. Certain of our agreements may contain support obligations. Under such agreements we provide unspecified bug fixes and technical support. No other upgrades, products, or post-contract support are provided. These arrangements may be renewable annually by the customer. Support revenue is recognized ratably over the period during which the obligation exists, typically 12 months or less. We recognize royalty revenue in the period in which the licensee reports shipment of products incorporating our IP components. Royalties are calculated on a per unit basis, as specified in our agreement with the licensee. We may, at our discretion and in accordance with our agreements, engage a third-party to perform royalty audits of our licensees. Any correction of royalties previously reported would occur when the results are resolved.
Revenue Recognition, Multiple Element Transactions	Multiple element transactions For multiple-element arrangements, we allocate revenue to all deliverables based on their relative selling prices. In such circumstances, we use a hierarchy to determine the selling price to be used for allocating revenues to deliverables: (i) vendor-specific objective evidence of fair value (VSOE); (ii) third-party evidence of selling price (TPE); and (iii) best estimate of the selling price (ESP). VSOE generally exists only when we sell the deliverable separately and revenue is the price actually charged by us for that deliverable. Generally, we are not able to determine TPE because our licensing arrangements differ from that of our peers. We have concluded that no VSOE or TPE exists because it is rare that either we or our competitors sell the deliverables on a stand-alone basis. ESPs reflect our best estimate of what the selling prices of the elements would be if they were sold regularly on a stand-alone basis. While changes in the allocation of the estimated sales price between the units of accounting will not affect the amount of total revenue recognized for a particular sales arrangement, any material changes in these allocations could impact the timing of revenue recognition, which could affect our results of operations. In determining ESPs, we apply significant judgment as we weigh a variety of factors, based on the facts and circumstances of the arrangement. The facts and circumstances we may consider include, but are not limited to, prices charged for similar offerings, if any, our historical pricing practices as well as the nature and complexity of different technologies being licensed, geographies and the number of uses allowed for a given license.
Fair Value	Fair Value ASC Topic 820, Fair Value Measurements, establishes a framework for measuring fair value and requires disclosures about fair value measurement. ASC 820 emphasizes that a fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, ASC 820 established the following fair value hierarchy that distinguishes between (1) market participant assumptions developed based on market data obtained from sources independent of the reporting entity (observable inputs) and (2) the reporting entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs): Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets; Level 2: Other inputs observable directly or indirectly, such as quoted prices for similar assets or liabilities or market-corroborate inputs; and Level 3: Unobservable inputs for which there is little or no market data and which requires the owner of the assets or liabilities to develop its own assumptions about how market participants would price these assets or liabilities. We only have one Level 3 recurring fair value measurement, the compound embedded derivative. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of assets and liabilities and their placement within the fair value hierarchy.
Financial Instruments	Financial Instruments ASC Topic 825, Financial Instruments, defines the fair value of a financial instrument as the amount at which the instrument could be exchanged in a current transaction between willing parties. Our financial instruments include cash, accounts receivable, accounts payable, and accrued expenses. These financial instruments are stated at their carrying values, which are estimates of their fair values because of their nearness to cash settlement or the comparability of their terms to the terms we could obtain, for similar instruments, in the current market. Our debt instruments are included in long-term debt, net, and convertible subordinated debt, net of discount on our unaudited consolidated balance sheets. Senior Term A Loan At its inception, the fair value of the Term A Loan was computed using a cash flow analysis in which the periodic cash coupon payments and the principal payment at maturity were discounted to the valuation date using an appropriate market discount rate. The discount rate was determined by analyzing the seniority and securitization of the instrument, our financial condition, and observing the quoted bond yields in the fixed income market as of the valuation date. Senior Term B Loan At its inception, the fair value of the Term B Loan was computed using a binomial lattice model. The valuation was determined using Level 3 inputs. The valuation model combined expected cash outflows with market-based assumptions regarding risk-adjusted yields, stock price volatility, recent price quotes and trading information of our common stock into which the Term B Loan is convertible. Convertible subordinated debt The compound embedded derivative included in our convertible subordinated debentures due October 2014 (“2014 Debentures”) required bifurcation and accounting at fair value because the economic and contractual characteristics of the compound embedded derivative met the criteria for bifurcation and separate accounting due to the conversion price not being indexed to our own stock. The compound embedded derivative is comprised of the conversion option and a make-whole payment for foregone interest if the holder converts the debenture early. The make-whole payment for foregone interest expires October 30, 2012, and upon its expiration, the compound embedded derivative will no longer meet the criteria for bifurcation as all components of the derivative will then be indexed to our own stock. At such time, a final valuation will be completed with any change in value recorded into earnings and the final value reclassified from other long-term liabilities to equity. At its inception, the approximate fair value of the compound embedded derivative included in our 2014 Debentures was computed as the difference between the estimated value of the 2014 Debentures with and without the compound embedded derivative features. The fair value of the 2014 Debentures was estimated using a convertible bond valuation model within a lattice framework. These valuations were determined using Level 3 inputs. The valuation model combines expected cash outflows with market-based assumptions regarding risk-adjusted yields, stock price volatility, recent price quotes, and trading information of our common stock into which the 2014 Debentures are convertible. Significant increases (decreases) in any of those inputs in isolation would result in a significantly lower (higher) fair value measurement. The compound embedded derivative is presented on the balance sheet at fair value and the compound embedded derivative is marked to market. The change in the fair value of the compound embedded derivative is a non-cash item primarily related to the change in price of the underlying common stock and is reflected in earnings. At our option, we can settle the compound embedded derivative in either cash or common stock. As we intend to, and have the ability to, satisfy the obligations with equity securities, in accordance with ASC Topic 470, Debt, we have classified the liability as a long-term liability on our consolidated balance sheets as of June 30, 2012 and September 30, 2011. The valuation methodologies we use as described above require considerable judgment and may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.
Intangible and Long-Lived Assets	Intangible and Long-Lived Assets Our intangible assets consist primarily of existing technologies, IP, and costs for our enterprise resource planning system. We account for intangible assets in accordance with ASC Topic 350, Goodwill and Others. We evaluate our long-lived assets for impairment whenever events or changes in circumstances indicate the carrying value of an asset or asset group may not be recoverable. The carrying value of an asset or asset group is not recoverable if the amounts of undiscounted future cash flows the assets are expected to generate (including any net proceeds expected from the disposal of the asset) are less than its carrying value. When we identify that impairment has occurred, we reduce the carrying value of the asset to its comparable market value (if available and appropriate) or to its estimated fair value based on a discounted cash flow approach. Currently, we do not have goodwill or indefinite-lived intangible assets.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts We evaluate the collectability of accounts receivable at each balance sheet date using a combination of factors, such as historical experience, credit quality, age of the accounts receivable balances, and economic conditions that may affect a customer’s ability to pay. We include any accounts receivable balances that are determined to be uncollectible in the overall allowance for doubtful accounts using the specific identification method. After all attempts to collect a receivable have failed, the receivable is written off against the allowance. Our allowance for doubtful accounts is $0.7 million and $2.2 million as of June 30, 2012 and September 30, 2011, respectively.