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Related Party Transactions
9 Months Ended
Sep. 30, 2011
Notes to Financial Statements [Abstract] 
RelatedPartyTransactionsDisclosureTextBlock
M.  
Related Party Transactions
 
At September 30, 2011, the Company had $13,716,000 of cash and cash equivalents compared with $4,147,000 at December 31, 2010.  Of this amount, $10,087,000 at September 30, 2011, compared with $949,000 at December 31, 2010, is invested in United States Treasury money market funds for which an entity controlled by a 10% stockholder, and for which a Director of the Company serves as a Director, serves as the investment manager. The fund transactions in 2011 and 2010 are directed at the discretion of Company management and carried out by the related party.