Marketable Securities (Details 1) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	$ 7,420,042	$ 10,900,722
Cost	7,423,448	$ 10,902,130
Due Within One Year
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	7,420,042
Cost	7,423,448
Due After One Year
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	0
Cost	$ 0