Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements Narrative (Details)

v3.7.0.1
Fair Value Measurements Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Oct. 21, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                        
Warrant shares                       314,286
Warrant, exercise price                       $ 2.80
Change in fair value of warrant $ 137 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 137 $ 0 $ 0  
Fair Value, Measurements, Recurring                        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                        
Derivative Liability 893               893      
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)                        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                        
Change in fair value of warrant                 137      
Derivative Liability $ 893       $ 0       $ 893 $ 0