Marketable Securities (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	$ 1,500,235	$ 7,420,042
Cost or Amortized Cost	1,499,885	7,423,448
Net Unrealized Gains (losses)	350	(3,406)
Government securities
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	1,500,235	6,560,303
Cost or Amortized Cost	1,499,885	6,562,792
Net Unrealized Gains (losses)	350	(2,489)
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Aggregate Fair Value	0	859,739
Cost or Amortized Cost	0	860,656
Net Unrealized Gains (losses)	$ 0	$ (917)