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COMMITMENTS AND CONTINGENT LIABILITIES
 12 Months Ended
Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS AND CONTINGENT LIABILITIES
8.
COMMITMENTS AND CONTINGENT LIABILITIES
 
Lease Commitments – We own our principal office and research facility in Bedford, Massachusetts, which we have occupied since November 1997. We conduct a portion of our activities in a leased facility in California under a non-cancelable operating lease that expires in 2013. The following is a schedule of future minimum rental payments (in thousands):
 
Year ended December 31,
2012
$ 18
2013
13
Total minimum lease payments
 $ 31
 
Rental expense was approximately $17,000, $16,000, and $13,000 in 2011, 2010 and 2009, respectively.
 
Litigation - There are no material pending legal proceedings to which we are a party or to which any of our properties are subject which, either individually or in the aggregate, are expected to have a material adverse effect on our business, financial position or results of operations.
 
Guarantees and Indemnification Obligations – We enter into agreements in the ordinary course of business that require us: i) to perform under the terms of the contracts, ii) to protect the confidentiality of our customers’ intellectual property, and iii) to indemnify customers, including indemnification against third party claims alleging infringement of intellectual property rights. We also have agreements with each of our directors and executive officers to indemnify such directors or executive officers, to the extent legally permissible, against all liabilities reasonably incurred in connection with any action in which such individual may be involved by reason of such individual being or having been a director or officer of the Company.
 
Given the nature of the above obligations and agreements, we are unable to make a reasonable estimate of the maximum potential amount that we could be required to pay. Historically, we have not made any significant payments on the above guarantees and indemnifications and no amount has been accrued in the accompanying consolidated financial statements with respect to these guarantees and indemnifications.