Fair Value Measurements (Details) (Recurring [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
Cash and cash equivalents and marketable securities measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	$ 7,390,831	$ 6,649,432
Marketable securities	1,393,590	1,398,022
Total	8,784,421	8,047,454
Level 1 [Member]
Cash and cash equivalents and marketable securities measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	7,390,831
Marketable securities	1,393,590
Total	8,784,421
Level 2 [Member]
Cash and cash equivalents and marketable securities measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	0
Marketable securities	0
Total	0
Level 3 [Member]
Cash and cash equivalents and marketable securities measured at fair value on recurring basis [Abstract]
Cash and cash equivalents	0
Marketable securities	0
Total	$ 0