Equity Incentive Plan - Options Rollforward (Details) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Balance at beginning of period 1,781,667 1,815,000
Granted 1,700,000  
Forfeited or cancelled (1,366,667) (33,333)
Balance at end of period 2,115,000 1,781,667
Non-exercisable (1,155,000) (615,539)
Outstanding and exercisable at end of period 960,000 1,166,128
Granted, grant date fair value $ 0.78  
Weighted Average Price    
Weighted average exercise price, beginning 6.55 $ 6.55
Granted, weighted average exercise price 1.00  
Forfeited or cancelled, weighted average exercise price 6.03 8.1
Weighted average exercise price, ending 2.39 6.55
Non-exercisable, weighted average price 1.00 5.85
Outstanding and exercisable, weighted average price $ 4.07 $ 8.1
Weighted Average Remaining Contractual Term    
Weighted average remaining contractual term, granted 8 years 7 months 6 days  
Weighted average remaining contractual term, forfeited or cancelled 6 years 9 months 18 days  
Weighted average remaining contractual term, non-exercisable 8 years 10 months 24 days 7 years
Weighted average remaining contractual term, exercisable 7 years 2 months 12 days 6 years 6 months