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Related Party Transactions
3 Months Ended
Mar. 31, 2012
Notes to Financial Statements [Abstract]  
Related Party Transactions
K.  
Related Party Transactions
 
At March 31, 2012, the Company had $13,392,000 of cash and cash equivalents compared with $13,709,000 at December 31, 2011.  Of this amount, $10,587,000 at March 31, 2012, compared with $10,087,000 at December 31, 2011, 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 2012 and 2011 are directed at the discretion of Company management and carried out by the related party.