Note 7 - Litigation	9 Months Ended
Sep. 30, 2011
Legal Costs, Policy [Policy Text Block]	7. Litigation On September 16, 2011 and September 29, 2011, two nearly identical shareholder derivative actions were filed in the United States District Court for the Northern District of California and the California Superior Court for Santa Clara County, naming as defendants certain of the Company’s current and former directors and officers and the Company’s compensation advisory firm. The complaints assert claims for, among other things, breach of fiduciary duty in connection with the directors' approval of compensation for the Company's executive officers during 2010. The complaints each seek an award of damages in favor of the Company, equitable relief, costs and attorney's fees. The matters are at a preliminary stage; the defendants have not yet responded to the complaint and no discovery has taken place. The Company and certain of its subsidiaries are parties to actions and proceedings incident to the Company's business in the ordinary course of business, including litigation regarding its intellectual property, challenges to the enforceability or validity of its intellectual property and claims that the Company’s products infringe on the intellectual property rights of others. These proceedings often involve complex questions of fact and law and may require the expenditure of significant funds and the diversion of other resources to prosecute and defend. The Company defends itself vigorously against any such claims. In management’s opinion, the resolution of any pending matters is uncertain and the Company is not able to assess whether it will have a material adverse effect on the Company’s condensed consolidated financial condition, results of operations, or liquidity.

Note 7 - Litigation

9 Months Ended

Sep. 30, 2011

7. Litigation

On September 16, 2011 and September 29, 2011, two nearly identical shareholder derivative actions were filed in the United States District Court for the Northern District of California and the California Superior Court for Santa Clara County, naming as defendants certain of the Company’s current and former directors and officers and the Company’s compensation advisory firm. The complaints assert claims for, among other things, breach of fiduciary duty in connection with the directors' approval of compensation for the Company's executive officers during 2010. The complaints each seek an award of damages in favor of the Company, equitable relief, costs and attorney's fees. The matters are at a preliminary stage; the defendants have not yet responded to the complaint and no discovery has taken place.

The Company and certain of its subsidiaries are parties to actions and proceedings incident to the Company's business in the ordinary course of business, including litigation regarding its intellectual property, challenges to the enforceability or validity of its intellectual property and claims that the Company’s products infringe on the intellectual property rights of others. These proceedings often involve complex questions of fact and law and may require the expenditure of significant funds and the diversion of other resources to prosecute and defend. The Company defends itself vigorously against any such claims.

In management’s opinion, the resolution of any pending matters is uncertain and the Company is not able to assess whether it will have a material adverse effect on the Company’s condensed consolidated financial condition, results of operations, or liquidity.