Marketable Securities (Tables)
 12 Months Ended
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities
As of December 31, 2016, the Company had no available-for-sale marketable securities. The cost and fair values of the Company’s available-for-sale marketable securities as of December 31, 2015, were as follows: 


Aggregate
Fair Value
 
Cost or Amortized
Cost
 
Net Unrealized
Losses
Government securities

$
6,560,303


$
6,562,792


$
(2,489
)
Corporate debt securities

859,739


860,656


(917
)
 

$
7,420,042


$
7,423,448


$
(3,406
)