XML 38 R28.htm IDEA: XBRL DOCUMENT v3.5.0.2
Cash, Cash Equivalents, Short-Term Investments and Long-Term Investments (Tables)
 6 Months Ended
Jun. 30, 2016
Cash, Cash Equivalents, Short-Term Investments and Long-Term Investments [Abstract]  
Schedule of cash, cash equivalents and short-term investments and long-term investments
   

As of
June 30,
2016

    

As of
December 31, 2015

     Increase  
Cash and cash equivalents   $ 3,650,699     $ 1,573,328     $ 2,077,371  
Short-term investments(1)     6,696,000       4,464,000       2,232,000  
Subtotal     10,346,699       6,037,328       4,309,371  
Long-term investments(1)     487,000       487,000       0  
Total   $ 10,833,699     $ 6,524,328     $ 4,309,371  

 

(1) We accrued $18,481 and $9,221 in interest income on these investments as of June 30, 2016 and December 31, 2015, respectively, which was recorded in other receivables.
Schedule of held to maturity securities
          Gross Unrealized     Estimated  
    Cost     Gains     Losses    

Fair Value

  
Certificates of deposit   $ 7,183,000     $ 5,661     $ 0     $ 7,188,661