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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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Stockholders' Equity (Details Textual 2) - USD ($)	1 Months Ended					6 Months Ended	12 Months Ended
Stockholders' Equity (Details Textual 2) - USD ($)	May. 31, 2014	Feb. 28, 2014	Jan. 31, 2014	Nov. 30, 2013	Sep. 30, 2013	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Nov. 30, 2014	Jul. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Number of shares available for future grants under stock option plan							740,138
Stock options plan stock options exercisable period							10 years
Stock options exercisable period description							Vest over four years
Stock-based compensation expense						$ 10,119,000
Share based compensation shares vested							135,400
Unrecognized stock based compensation expense						$ 1,760,900	$ 2,496,400	$ 589,500	$ 0
Weighted average fair value of options and warrants granted						$ 3.60	$ 8.35	$ 2.90
Unrecognized stock based compensation, weighted average remaining period							3 years 4 months 24 days
Warrants issued, number of shares of common stock						6,007,329
Exercise price per share						$ 4.00		$ 0.001			$ 4.00
Unvested warrants to purchase common stock								1,731,157
Fair value of warrants issued						$ 14,300		$ 10,800
Number of shares increased by shareholders										1,611,769
Shares of restricted stock granted to employees							104,000
Shares of restricted stock granted to employees, Net							94,000
Restricted shares, Forfeited							10,000
Fair value per share of the restricted stock							$ 2.68
Forfeited shares of common stock							(206,504)
Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Options to purchase of common stock		29,197
Stock options term		10 years
Options vest percentgae		25.00%
Remaining options vest period description		Options vest on the one year anniversary of the grant date and the remaining options vest quarterly over the following 3 years.
Fair value of options		$ 4.55
Exercise price per share		$ 7.50
Placement Agent [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Exercise price per share									$ 4.00
Placement Agent [Member] \| Medeor Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense								$ 237,400
Exercise price per share								$ 5.50
Warrant to purchase of common stock								40,000
Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Exercise price per share						$ 4.00		$ 4.00	$ 4.00
Warrant to purchase of common stock						2,500		4,300
Fair value of warrants issued						$ 0
Series A Preferred Stock Offerings [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock options term								7 years	7 years
Warrants issued, number of shares of common stock								382,547
Warrants contractual term									7 years
Series A Preferred Stock Offerings [Member] \| Placement Agent [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Warrants issued, number of shares of common stock								127,516
Exercise price per share								$ 4.00
Debt Offerings [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock options term								7 years	7 years
Warrants contractual term									7 years
Debt Offerings [Member] \| Debt Holders [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Warrants issued, number of shares of common stock								42,750
Exercise price per share								$ 4.00
Debt Offerings [Member] \| Placement Agent [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Warrants issued, number of shares of common stock								21,375
Exercise price per share								$ 4.0
Strategic Advisor Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Exercise price per share									$ 0.01
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Weighted average fair value of options and warrants granted						$ 0.72		0.58	$ 0.15
Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Weighted average fair value of options and warrants granted						$ 7.00		$ 4.00
Unvested warrants to purchase common stock						1,007,421		321,285	402,451
Aggregate intrinsic value of warrants vested							$ 26,270,000
Aggregate intrinsic value of warrants outstanding							$ 26,270,000
Founder Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Warrant to purchase of common stock									173,643
Officer Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Options to purchase of common stock			200,755	37,500	133,150		55,000	66,840
Stock options term			10 years	10 years	10 years		10 years	10 years
Options vest percentgae			25.00%	25.00%	25.00%		6.25%	25.00%
Remaining options vest percentage					75.00%
Remaining options vest period description			Options vest on the one anniversary of the grant date and the remaining options vest quarterly over the following 3 years	Options vest on the one year anniversary of the grant date and the remaining options vest in equal quarterly increments over the following 3 years.	Options vest in equal quarterly increments over a four-year period.		Options vest each quarter over the following 4 years.	Options vest on the one anniversary of the grant date and the remaining options vest quarterly over the following 3 years
Fair value of options			$ 4.55	$ 3.13	$ 2.70		$ 9.08	$ 2.71
Fair value of options on grant date							$ 454,000
Exercise price per share			$ 7.50	$ 4.00	$ 4.00		$ 13.50	$ 4.00				$ 0.80
Forfeited shares of common stock							150,566
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized stock based compensation expense							$ 1,179,300
Unrecognized stock based compensation, weighted average remaining period							3 years 8 months 12 days
Fair value per share of the restricted stock							$ 2.76
Employees Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock options plan stock options exercisable period							10 years
Options to purchase of common stock	70,000						256,100
Stock options term	10 years
Options vest percentgae	25.00%
Remaining options vest percentage							6.25%
Remaining options vest period description	Options vest on the one year anniversary of the grant date and the remaining options vest quarterly over the following 3 years.
Exercise price per share	$ 7.50
Employees Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Fair value of options on grant date	$ 3,580						$ 3,590
Exercise price per share							$ 8.60
Employees Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Fair value of options on grant date							$ 9,960
Exercise price per share							$ 13.50