Share-Based Payments (Details 2) - $ / shares		6 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable		3,546,897	3,783,002
Exercise price of warrants		$ 2.23
2012 August Financing Warrants
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	[1]	428,716	536,250
Exercise price of warrants	[1]	$ 1.50
Expiration Date	[1]	08/30/2017
2013 Broker Warrants (Series D Financing)
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable		100,000	228,571
Exercise price of warrants		$ 1.75
Expiration Date		07/05/18
2013 Broker Warrants (Convertible Note)
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable		114,285	114,285
Exercise price of warrants		$ 1.75
Expiration Date		11/04/18
2014 Broker Warrants (Series E Financing)
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable		1,085,714	1,085,714
Exercise price of warrants		$ 1.75
Expiration Date		01/31/2019
2016 Warrants to SSS (Note 12)
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable		1,818,182	1,818,182
Exercise price of warrants		$ 2.75
Expiration Date		03/28/2018

[1] The warrants are classified as derivative liabilities as disclosed in Note 13.