|**Description Of Business And Basis Of Presentation Description Of Business And Basis Of Presentation (Policies)** | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|**Accounting Policies [Abstract]**                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Reclassification, policy                                                                                           | ReclassificationsDuring the fourth quarter of fiscal year 2013, we reviewed our operating expenses and reclassified certain amounts, primarily headcount and facilities costs, to align with our current operating structure. As a result, we also reclassified the related prior year amounts within our Condensed Consolidated Statements of Operations for comparability purposes. These reclassifications did not affect the Company’s consolidated net revenue, gross profit, operating income, or net income. The effect of the reclassifications on the previously-reported Condensed Consolidated Statement of Operations is reflected in the table below:Three Months Ended June 30, 2012As Previously ReportedChangeReclassified BalanceOperating expenses:Research and development$290$(8)$282Marketing and sales1456151General and administrative86288                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|                                                                                                                   | Three Months Ended June 30, 2012                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                   | As Previously Reported                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Operating expenses:                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Research and development                                                                                           | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Marketing and sales                                                                                                | 145                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|General and administrative                                                                                         | 86                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|New accounting pronouncements, policy                                                                              | Recently Adopted Accounting StandardsIn December 2011, the FASB issued ASU 2011-11,Disclosures about Offsetting Assets and Liabilities, which creates new disclosure requirements about the nature of an entity’s rights of offset and related arrangements associated with its financial instruments and derivative instruments. In January 2013, the FASB issued ASU 2013-01,Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities, to address concerns expressed by preparers while still providing useful information about certain transactions involving master netting arrangements. The new disclosures are designed to make financial statements that are prepared under U.S. GAAP more comparable to those prepared under International Financial Reporting Standards. The disclosure requirements are effective for annual reporting periods beginning on or after January 1, 2013, and interim periods therein, with retrospective application required. There was no material impact on our Condensed Consolidated Financial Statements with the adoption of ASU 2011-11 and ASU 2013-01.In February 2013, the FASB issued ASU 2013-02,Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, effective prospectively for fiscal years beginning after December 15, 2012.  The amendments of this ASU require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income (“AOCI”) by component. In addition, an entity is required to present, either on the face of the statement where net income (loss) is presented or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts. There was no material impact on our Condensed Consolidated Financial Statements with the adoption of ASU 2013-02. See Note 5 for details of amounts reclassified out of accumulated other comprehensive income.
|Impact of recently issued accounting standards                                                                     | Impact of Recently Issued Accounting StandardsIn July 2013, the FASB issued ASU 2013-11,Income Taxes (Topic 220): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. The amendments of this ASU require that entities that have an unrecognized tax benefit and a net operating loss carryforward or similar tax loss or tax credit carryforward in the same jurisdiction as the uncertain tax position present the unrecognized tax benefit as a reduction of the deferred tax asset for the loss or tax credit carryforward rather than as a liability when the uncertain tax position would reduce the loss or tax credit carryforward under the tax law. The disclosure requirements will be effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2013, and will require prospective application. Early adoption is permitted. We expect to adopt this new standard in the first quarter of fiscal year 2015. While not yet quantified, we anticipate the adoption may have a material impact on the balance sheet only, resulting in equal reductions to both deferred tax assets and noncurrent income tax obligations.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

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