Note 5. Commitments and Contingencies Lease commitments Headquarters office lease. On April 25, 2017, we entered into a sublease and master landlord consent agreement for our headquarters office facility, covering approximately 6,283 square feet and located in Sunnyvale, California. The lease is scheduled to expire on March 31, 2018. Other facility leases. We lease our facilities under non-cancelable operating lease agreements, which expire at various dates through December 2020. Total facility rent expense pursuant to all operating lease agreements was $567,000 and $620,000 for the years ended December 31, 2017 and 2016, respectively. As of December 31, 2017, minimum payments due under all non-cancelable lease agreements were as follows (in thousands): Years ending December 31, Operating Leases 2018 $ 86 2019 15 2020 15 Total minimum lease and principal payments $ 116 Legal contingencies On October 11, 2016 the Wage and Hour Division of the U.S. Department of Labor (DOL) notified the Company that it would be conducting an audit of the Company relating to compliance with the Fair Labor Standards Act (FLSA). The DOL indicated that the focus of the audit is directed to compliance with overtime requirements related to our technology specialists who work from home providing technical support services. The audit commenced on October 20, 2016 and was resolved by settlement agreement on January 18, 2018. Pursuant to the settlement agreement, as of December 31, 2017, the Company accrued $30,000 in back wages and related liquidated damages to some of our current and former employees. On December 20, 2016 the Federal Trade Commission (FTC) issued a Civil Investigative Demand, or CID, to the Company requiring the Company to produce certain documents and materials and to answer certain interrogatories relating to PC Healthcheck, a software program provided by the Company to certain third parties prior to December 31, 2016. Since issuing the CID, the FTC has sought additional written and testimonial evidence from the Co