Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficit) (Details)

v3.8.0.1
Stockholders' Equity (Deficit) (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Class of Warrant or Right  
Outstanding 2,112
Class of Warrant or Right Issued Date One [Member]  
Class of Warrant or Right  
Date Issued Apr. 13, 2012
Expiration Date Apr. 13, 2018
Exercise Price (in dollars per share) | $ / shares $ 4.85
Outstanding 983
Class of Warrant or Right Issued Date Two [Member]  
Class of Warrant or Right  
Date Issued Oct. 08, 2014
Expiration Date Oct. 08, 2020
Exercise Price (in dollars per share) | $ / shares $ 3.3
Outstanding 848
Class of Warrant or Right Issued Date Three [Member]  
Class of Warrant or Right  
Date Issued Jul. 27, 2017
Expiration Date Jul. 27, 2024
Exercise Price (in dollars per share) | $ / shares $ 1.96
Outstanding 281