XML 67 R15.htm IDEA: XBRL DOCUMENT v2.4.0.6
Marketable Securities:
 9 Months Ended
Sep. 30, 2012
Marketable Securities:  
Marketable Securities:

7. Marketable Securities:

        Marketable securities consist of the following:

 
   September 30,
2012 		  December 31,
2011 		 

Government debt securities, at par value

   $ 24,359   $ 25,147  

Less discount

     (150 )   (314 )
           

 

     24,209     24,833  

Unrealized gain

     967     1,803  
           

Fair value (Level 1 measurement)

   $ 25,176   $ 26,636  
           

        The future contractual maturities of marketable securities is one year or less. The proceeds from maturities and interest receipts from the marketable securities are restricted to the service of the Greeley Note (See Note 11—Bank and Other Notes Payable).