Warrants (Schedule of Warrants Outstanding) (Details)	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Warrants [Line Items]
No. outstanding	469,179
Series 1 Warrants [Member]
Warrants [Line Items]
No. outstanding	149,025
Exercise price | $ / shares	$ 17.6
Remaining contractual life	1 year 3 months 18 days
Expiration Date	July 19, 2017
Series 2 Warrants [Member]
Warrants [Line Items]
No. outstanding	194,352
Exercise price | $ / shares	$ 17.6
Remaining contractual life	1 year 3 months 18 days
Expiration Date	July 19, 2017
Reload Warrants [Member]
Warrants [Line Items]
No. outstanding	75,802
Exercise price | $ / shares	$ 17.6
Remaining contractual life	10 months 6 days
Expiration Date	February 6, 2017
October 2015 Warrants [Member]
Warrants [Line Items]
No. outstanding	50,000
Exercise price | $ / shares	$ 5
Remaining contractual life	5 years 14 days
Expiration Date	April 15, 2021
May 2015 Warrants [Member]
Warrants [Line Items]
No. outstanding	537,500
Exercise price | $ / shares	$ 3
Remaining contractual life	4 years 1 month 2 days
Expiration Date	May 4, 2020