Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended
	Aug. 09, 2017	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2017
Warrant Holders [Member]
Warrants (Textual)
Warrants issued to purchase common stock	917
Exercisable price of warrants	$ 660.00
Warrants exercisable period	5 years
Common shares issued for warrants				1,288	2,747
Warrant exercise price				$ 360.00	$ 360.00
Proceeds from warrants exercised				$ 464,000	$ 989,000
Common shares issued from exercise of warrants			92,489
Number of warrants exchanged for common shares			92,489
Exercise price of warrants			$ 0.27
Public offering [Member]
Warrants (Textual)
Warrants issued to purchase common stock		4,771
Exercisable price of warrants		$ 360.00
Warrants exercisable period		5 years