Marketable Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	$ 7,420,042	$ 10,900,722
Cost or Amortized Cost	7,423,448	10,902,130
Net Unrealized Losses	(3,406)	(1,408)
Government securities
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	6,560,303	6,740,825
Cost or Amortized Cost	6,562,792	6,741,466
Net Unrealized Losses	(2,489)	(641)
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	859,739	4,159,897
Cost or Amortized Cost	860,656	4,160,664
Net Unrealized Losses	$ (917)	$ (767)