Quarterly report pursuant to Section 13 or 15(d)

Unaudited Condensed Statements of Operations

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Unaudited Condensed Statements of Operations - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Income Statement [Abstract]        
Revenue $ 64 $ 64 $ 193 $ 193
Operating expenses:        
Research and development, net 3,933 4,459 14,858 12,927
Selling, general and administrative 2,433 2,004 6,528 6,425
Total operating expenses 6,366 6,463 21,386 19,352
Loss from operations (6,302) (6,399) (21,193) (19,159)
Other (income) expense:        
Amortization of debt discount 103 100 314 300
Interest income (260) (109) (697) (261)
Interest expense 435 373 1,211 1,081
Warrant liabilities fair value adjustment (6,931) 1,638 (7,611) (2,809)
Total other (income) expense (6,653) 2,002 (6,783) (1,689)
Net income (loss) $ 351 $ (8,401) $ (14,410) $ (17,470)
Net income (loss) per share attributable to common stockholders - basic        
Net income (loss) per share - basic $ 0.01 $ (0.31) $ (0.34) $ (0.67)
Net income (loss) per share attributable to common stockholders - diluted        
Net income (loss) per share - diluted $ 0.01 $ (0.31) $ (0.34) $ (0.67)
Weighted average common shares outstanding        
Basic 46,988,844 27,091,061 42,519,585 26,096,046
Diluted 47,025,503 27,091,061 42,519,585 26,096,046