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Notes and Short-term Receivables
6 Months Ended
Jun. 30, 2014
Receivables [Abstract]  
Notes and Short-term Receivables

5. Notes and Short-term Receivables

 

At June 30, 2014 and December 31, 2013, notes and short-term receivables, including accrued interest, consisted of:

 

    June 30, 2014     December 31, 2013  
Note receivable - Vulcan   $ 468,000     $ 440,000  
                 
Total notes and short-term receivables   $ 468,000     $ 440,000