Impairment of Long-lived Assets - The Company periodically reviews its long-lived assets to determine potential impairment by comparing the carrying value of the long-lived assets with the estimated future net undiscounted cash flows expected to result from the use of the assets, including cash flows from disposition, at least annually or more frequently if events or changes in circumstances indicate a potential impairment may exist.  Should the sum of the expected future net cash flows be less than the carrying value, the Company would recognize an impairment loss at that date.  An impairment loss would be measured by comparing the amount by which the carrying value exceeds the fair value (estimated discounted future cash flows) of the long-lived assets.  The Company performs its impairment analysis in October of each year.  For the year ended December 31, 2013, the Company used the Relief-from-Royalty method to analyze its developed technology for impairment.  There were no impairment charges for the years ended December 31, 2013 and 2012.