Note 6. Commitments and Contingencies Lease commitments Headquarters office lease. On June 7, 2012, we entered into a sublease and master landlord consent agreement for our headquarters office facility located in Redwood City, California. This lease covers approximately 21,620 square feet and will expire on February 18, 2017. The lease provides for escalating payments over the term and rent expense is recognized on a straight-line basis. Other facility leases. We lease our facilities under non-cancelable operating lease agreements, which expire at various dates through the end of 2014. Total facility rent expense pursuant to all operating lease agreements was $602,000, $681,000, and $621,000 for the years ended December 31, 2013, 2012, and 2011, respectively. As of December 31, 2013, minimum payments due under all non-cancelable lease agreements were as follows (in thousands): Years ending December 31, Operating Leases 2014 440 2015 435 2016 448 2017 62 Total minimum lease and principal payments $ 1,385 Legal contingencies On February 7, 2012, a lawsuit seeking class-action certification was filed against the Company in the United States District Court for the Northern District of California, No. 12-CV-00609, alleging that the design of one the Company s software products and the method of promotion to consumers constitute fraudulent inducement, breach of contract, breach of express and implied warranties, and unjust enrichment. On the same day the same plaintiffs  law firm filed another action in the United States District Court for the Southern District of New York, No. 12-CV-0963, involving similar allegations against a subsidiary of the Company and one of the Company s partners who distributes our software products, and that partner has requested indemnification under contract terms with the Company. The law firm representing the plaintiffs in both cases has filed unrelated class actions in the past against a number of major software providers with similar allegations about those providers  products. On May 3