Marketable Securities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, fair value	$ 8,073,108	$ 10,530,942
Cost or Amortized Cost	8,069,698	10,524,732
Net Unrealized Gains	3,410	6,210
Government securities
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, fair value	6,252,339	8,328,392
Cost or Amortized Cost	6,249,483	8,324,372
Net Unrealized Gains	2,856	4,020
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, fair value	1,820,769	2,202,550
Cost or Amortized Cost	1,820,215	2,200,360
Net Unrealized Gains	$ 554	$ 2,190