Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Operating Expenses:    
Research and development $ 3,993 $ 2,022
General and administrative 5,105 3,441
Selling and marketing 901 36
Total operating expenses 9,999 5,499
Loss from operations (9,999) (5,499)
Other income/(expense):    
Interest income 29 5
Interest expense (2,640) (1,930)
Loss on settlement of options and warrants 0 (2,089)
Total other expense, net (2,611) (4,014)
Net loss $ (12,610) $ (9,513)
Net loss per common share, basic and diluted $ (2.22) $ (7.55)
Weighted average number of common shares outstanding, basic and diluted 5,682 1,260