5. Intangible Assets

        In 2011, the Company entered into a purchase agreement to acquire software technology to be used in certain software applications. The total purchase price was determined based on a revenue-sharing formula for software licenses sold with the acquired technology between December 2011 and November 2012. The purchase agreement included a minimum purchase price of $0.7 million and a maximum purchase price of $2.0 million. In 2011, the Company recorded a finite-lived intangible asset and corresponding obligation for the minimum purchase price of $0.7 million, based on estimated future license sales under the agreement. Based on sales during that period, the final purchase price was $0.7 million. The asset is being amortized and expensed to cost of revenue on a straight-line basis over the estimated life of the associated technology, which was determined to be five years.

        In 2010, the Company completed the acquisition of software technology to be used in certain software applications for a total purchase price that consisted of a cash payment of approximately $0.3 million and the issuance of a warrant to purchase 71,153 shares of the Company's common stock at a fair value of $0.3 million. The total purchase price of approximately $0.6 million was recorded as a finite-lived intangible asset and is being amortized and expensed to cost of revenue on a straight-line basis over the estimated life of the associated technology which was determined to be five years.

        Amortization of finite-lived intangible assets as of December 31, 2013 is as follows for the next three years: