Marketable Securities (Details 1) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 1,500,235	$ 7,420,042
Cost	1,499,885	$ 7,423,448
Due within one year
Schedule of Available-for-sale Securities [Line Items]
Fair Value	1,500,235
Cost	1,499,885
Due after one year
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0
Cost	$ 0