7. Commitments and Contingencies Lease Obligations In April 2009, the Company entered into a sublease agreement for its corporate headquarters in Northbrook, Illinois at a rate of $15 per month, expiring in April 2010. In January 2010, the Company exercised an option to extend the lease for an additional 20 months through December 31, 2011, at a monthly rent of $15 for the first 12 months of the renewal period and $16 per month for the last eight months of the renewal period. The lease was terminated as of December 31, 2011. In September 2011, the Company entered into an office lease agreement for approximately 21,000 square feet of office space in Deerfield, Illinois, which was effective August 31, 2011. The initial term of the lease commenced on December 1, 2011 and expires on June 30, 2018. The minimum rent will initially be approximately $30 per month during the first year and will increase each year during the initial term, up to approximately $35 per month after the sixth year. The Company has the option to extend the lease for an additional five-year term, which would commence upon the expiration of the initial term. The Company also leases its offices in Reinach, Switzerland and in Mannheim, Germany. The Reinach office lease rate is $7 (6 CHF) per month, expiring on May 31, 2015. The Mannheim office lease rate is approximately $11 (8 Euros) per month through December 31, 2011 and approximately $6 (5 Euros) per month through December 31, 2012, the expiration of the lease. Additionally the Company leases several company cars for its Reinach and Mannheim offices. All of these lease contracts expire no later than July 2013. The Company recognizes rent expense on a monthly basis over the lease term based on a straight-line method. Rent expense was $507, $355 and $162 for the years ended December 31, 2011, 2010 and 2009, respectively. The aggregate future minimum lease payments under noncancelable operating leases as of December 31, 2011 were as follows: 2012 $ 576 2013 461 2014 455 2015 420 2016 398 2017 and t