Litigation	3 Months Ended
Mar. 31, 2012
Litigation [Abstract]
Litigation	Note 9 - Litigation We have three intellectual property infringement lawsuits pending against multiple parties in the United States District Court for the Eastern District of Texas, Tyler Division, pursuant to which we allege that these parties infringe on certain of our patents. We seek damages and injunctive relief in all the complaints. We have one complaint with the United States International Trade Commission (ITC) alleging that Apple, Inc. has engaged in unfair trade practices by the importation, sale for importation, and sale after importation of certain devices with secure communication capabilities that infringe one or more claims of our U.S. Patent No. 8,051,181. On August 11, 2010, we initiated a lawsuit by filing a complaint against Aastra Technologies, Inc., Apple, Inc., Cisco Systems, Inc., and NEC Corporation. On January 12, 2011, we initiated a new lawsuit by filing a complaint against Siemens Enterprise Communications and Mitel Networks Corp. On April 12, 2011, we amended this complaint to add Avaya, Inc., as a defendant. We believe that Aastra, Apple, Cisco, NEC, Siemens, Mitel and Avaya infringe on certain of our patents, but obtaining and collecting a judgment against these parties may be difficult or impossible. Patent litigation is inherently risky and the outcome is uncertain. Aastra, Apple, Cisco, NEC, Siemens, Mitel and Avaya are all large, well-financed companies with substantially greater resources than us. We believe that these parties will devote a substantial amount of resources in an attempt to prove that either their products do not infringe our patents or that our patents are invalid and unenforceable. At this time, we cannot predict the final outcome of these litigation matters. On November 1, 2011, we initiated a lawsuit against Apple in the United States District Court, Tyler Division, pursuant to which we allege that Apple infringes an additional patent of ours. We seek damages and injunctive relief. No hearing or trial dates have been set. On November 4, 2011, we filed a complaint with the United States International Trade Commission (ITC) alleging that Apple has engaged in unfair trade practices by the importation, sale for importation, and sale after importation of certain devices with secure communication capabilities that infringe one or more claims of our U.S. Patent No. 8,051,181. The accused products include the latest iPhones, iPads, iPods and Macintosh computers. We have requested that the ITC institute an investigation into Apple's allegedly infringing imports and ultimately bar Apple from importing those Apple products or further selling the infringing Apple products that have already been imported. On January 5, 2012, a claims construction hearing was held in our case against Aastra, Apple, Cisco and NEC in the United States District Court for the Eastern District of Texas, Tyler Division. On April 25, 2012 the United States District Court for the Eastern District of Texas, Tyler Division, issued its Markman Order on the claim terms that were in dispute in the Aastra, Apple, Cisco and NEC litigation and adopted certain interpretations that we believe are favorable to us. The trial in connection with the Aastra, Apple, Cisco and NEC litigation is scheduled to start on November 5, 2012. One or more potential intellectual property infringement claims may also be available to us against certain other companies who have the resources to defend against any such claims. Although we believe these potential claims are worth pursuing, commencing a lawsuit can be expensive and time-consuming, and there is no assurance that we will prevail on such potential claims. In addition, bringing a lawsuit may lead to potential counterclaims which may preclude our ability to commercialize our initial products, which are currently in development.

Note 9 - Litigation

We have three intellectual property infringement lawsuits pending against multiple parties in the United States District Court for the Eastern District of Texas, Tyler Division, pursuant to which we allege that these parties infringe on certain of our patents. We seek damages and injunctive relief in all the complaints. We have one complaint with the United States International Trade Commission (ITC) alleging that Apple, Inc. has engaged in unfair trade practices by the importation, sale for importation, and sale after importation of certain devices with secure communication capabilities that infringe one or more claims of our U.S. Patent No. 8,051,181.

On August 11, 2010, we initiated a lawsuit by filing a complaint against Aastra Technologies, Inc., Apple, Inc., Cisco Systems, Inc., and NEC Corporation.

On January 12, 2011, we initiated a new lawsuit by filing a complaint against Siemens Enterprise Communications and Mitel Networks Corp. On April 12, 2011, we amended this complaint to add Avaya, Inc., as a defendant.

We believe that Aastra, Apple, Cisco, NEC, Siemens, Mitel and Avaya infringe on certain of our patents, but obtaining and collecting a judgment against these parties may be difficult or impossible. Patent litigation is inherently risky and the outcome is uncertain. Aastra, Apple, Cisco, NEC, Siemens, Mitel and Avaya are all large, well-financed companies with substantially greater resources than us. We believe that these parties will devote a substantial amount of resources in an attempt to prove that either their products do not infringe our patents or that our patents are invalid and unenforceable. At this time, we cannot predict the final outcome of these litigation matters.

On November 1, 2011, we initiated a lawsuit against Apple in the United States District Court, Tyler Division, pursuant to which we allege that Apple infringes an additional patent of ours. We seek damages and injunctive relief. No hearing or trial dates have been set.

On November 4, 2011, we filed a complaint with the United States International Trade Commission (ITC) alleging that Apple has engaged in unfair trade practices by the importation, sale for importation, and sale after importation of certain devices with secure communication capabilities that infringe one or more claims of our U.S. Patent No. 8,051,181. The accused products include the latest iPhones, iPads, iPods and Macintosh computers. We have requested that the ITC institute an investigation into Apple's allegedly infringing imports and ultimately bar Apple from importing those Apple products or further selling the infringing Apple products that have already been imported.

On January 5, 2012, a claims construction hearing was held in our case against Aastra, Apple, Cisco and NEC in the United States District Court for the Eastern District of Texas, Tyler Division. On April 25, 2012 the United States District Court for the Eastern District of Texas, Tyler Division, issued its Markman Order on the claim terms that were in dispute in the Aastra, Apple, Cisco and NEC litigation and adopted certain interpretations that we believe are favorable to us. The trial in connection with the Aastra, Apple, Cisco and NEC litigation is scheduled to start on November 5, 2012.

One or more potential intellectual property infringement claims may also be available to us against certain other companies who have the resources to defend against any such claims. Although we believe these potential claims are worth pursuing, commencing a lawsuit can be expensive and time-consuming, and there is no assurance that we will prevail on such potential claims. In addition, bringing a lawsuit may lead to potential counterclaims which may preclude our ability to commercialize our initial products, which are currently in development.