Stockholders' Equity (Details Textual)			1 Months Ended			3 Months Ended		6 Months Ended
	Aug. 08, 2016 USD ($)	May 11, 2016 installments shares	May 26, 2016 installments shares	Jan. 31, 2016 USD ($) $ / shares shares	Nov. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) installments $ / shares shares	Jun. 30, 2015 USD ($)	Dec. 31, 2015 $ / shares shares
Stockholders Equity [Textual]
Preferred stock, shares authorized | shares						1,000,000		1,000,000		1,000,000
Preferred stock, par value | $ / shares						$ 0.0001		$ 0.0001		$ 0.0001
Common stock, shares authorized | shares						200,000,000		200,000,000		200,000,000
Common stock, par value | $ / shares						$ 0.0001		$ 0.0001		$ 0.0001
Warrant repurchase				$ 5,400,000
Warrant repurchase, shares | shares				1,967,445
Restricted shares granted, Value						$ 0.1		$ 0.1
Stock based compensation expense								2,622,000	$ 2,427,000
Unamortized value of options						$ 1,700,000		$ 1,700,000
Unamortized expense period								3 years 10 months 24 days
Total common and preferred shares, shares authorized | shares						201,000,000		201,000,000		201,000,000
Board of Directors [Member]
Stockholders Equity [Textual]
Warrant repurchase					$ 20,000,000
Restricted Shares and Restricted Share Units [Member]
Stockholders Equity [Textual]
Number of installments | installments								3
Restricted shares granted, Value						$ 100,000		$ 100,000
Common Stock [Member]
Stockholders Equity [Textual]
Shares, exercised | shares				638,223
Shares vested | shares				638,223
Fair value, per share | $ / shares				$ 10.68
Exercise price | $ / shares				$ 1.76
Number of shares required exercise proceeds | shares				105,206
Value of shares required exercise exercise				$ 1,100,000
Shares transferred to pay for payroll withholding taxes, shares | shares				252,670
Shares transferred to pay for payroll withholding taxes, value				$ 2,700,000
Balance shares issued to pay for exercised after payroll tax shares | shares				280,347
2015 Plan [Member] | Restricted Shares and Restricted Share Units [Member] | Subsequent Event [Member]
Stockholders Equity [Textual]
Restricted shares granted, Value	$ 75,000
2015 Plan [Member] | Restricted Stock [Member]
Stockholders Equity [Textual]
Granted, shares | shares		1,864	90,000
Number of installments | installments		3	4
Unamortized value of options						300,000		$ 300,000
Unamortized expense period								2 years 4 months 24 days
2015 Plan [Member] | Restricted Stock [Member] | Subsequent Event [Member]
Stockholders Equity [Textual]
Restricted shares granted, Value	$ 75,000
2016 Plan [Member] | Restricted Stock [Member]
Stockholders Equity [Textual]
Granted, shares | shares								1,000,000
Stock options [Member]
Stockholders Equity [Textual]
Stock based compensation expense						1,200,000	$ 1,200,000	$ 2,500,000	$ 2,400,000
Unamortized value of options						$ 7,200,000		$ 7,200,000
Unamortized expense period								1 year 6 months