Warrants (Number of Warrants, Exercise Price, Aggregate Proceeds of Warrants If Exercised) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2016	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Balance at December 31, 2015	1,209,649	1,209,649
Shares, Issuances		1,233,830
Shares, Balance at June 30, 2016		2,443,479
Aggregate proceeds if exercised		$ 14,344,664
Weighted Average Exercise Price, Outstanding at December 31, 2015	$ 8.19	$ 8.19
Weighted Average Exercise Price, Issuances		3.59
Weighted Average Exercise Price, Outstanding at June 30, 2016		$ 5.87
Range 2.25 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Balance at December 31, 2015
Shares, Issuances		1,063,830
Shares, Exercises
Shares, Balance at June 30, 2016		1,063,830
Aggregate proceeds if exercised		$ 2,393,618
Weighted Average Exercise Price, Issuances		$ 2.25
Weighted Average Exercise Price, Exercises
Weighted Average Exercise Price, Outstanding at June 30, 2016		$ 2.25
Range 4.05 - 8.25 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Balance at December 31, 2015	694,062	694,062
Shares, Exercises
Shares, Balance at June 30, 2016		694,062
Aggregate proceeds if exercised		$ 4,036,474
Weighted Average Exercise Price, Outstanding at December 31, 2015	$ 5.82	$ 5.82
Weighted Average Exercise Price, Exercises
Weighted Average Exercise Price, Outstanding at June 30, 2016		$ 5.82
Range 10.75 - 23.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Balance at December 31, 2015	515,587	515,587
Shares, Issuances		170,000
Shares, Balance at June 30, 2016		685,587
Aggregate proceeds if exercised		$ 7,914,572
Weighted Average Exercise Price, Outstanding at December 31, 2015	$ 11.39	$ 11.39
Weighted Average Exercise Price, Issuances		12.00
Weighted Average Exercise Price, Outstanding at June 30, 2016		$ 11.54