Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Rollforward (Details)

v3.7.0.1
Fair Value Measurements Rollforward (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Balance at December 31, 2016   $ 893,000
Change in fair value of warrant liability $ (11,000) 67,000
Balance at June 30, 2017 960,000 960,000
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Balance at December 31, 2016   893,000
Change in fair value of warrant liability   67,000
Balance at June 30, 2017 $ 960,000 $ 960,000