Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2017	Nov. 13, 2017	Aug. 10, 2017	Dec. 20, 2016	Aug. 17, 2016	Jun. 29, 2016	Jun. 13, 2016	May 03, 2016	Jan. 15, 2016
Warrants (Textual)
Warrants to purchase common stock	16,482,635
Warrant [Member]
Warrants (Textual)
Warrants to purchase common stock									250,000
Share price per share									$ 0.28
Fair value of warrants									$ 20
Warrant [Member] \| Securities Purchase Agreement [Member]
Warrants (Textual)
Warrants to purchase common stock						89,286	803,572	892,857
Share price per share						$ 0.28	$ 0.28	$ 0.28
Slipstream Communications, LLC [Member]
Warrants (Textual)
Warrants to purchase common stock		5,882,352	5,882,352
Fair value of warrants		$ 976	$ 1,024	$ 200
Slipstream Communications, LLC [Member] \| Warrant [Member]
Warrants (Textual)
Warrants to purchase common stock		5,882,352	5,882,352		5,882,352
Share price per share		$ 0.28	$ 0.28		$ 0.28