Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Deficit)

v3.19.1
Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
March 2017 Offering [Member]
Common Stock [Member]
March 2017 Offering [Member]
Additional Paid-in Capital [Member]
March 2017 Offering [Member]
November 2017 ATM Facility [Member]
Common Stock [Member]
November 2017 ATM Facility [Member]
Additional Paid-in Capital [Member]
November 2017 ATM Facility [Member]
December 2018 Offering [Member]
Common Stock [Member]
December 2018 Offering [Member]
Additional Paid-in Capital [Member]
December 2018 Offering [Member]
Retained Earnings [Member]
December 2018 Offering [Member]
February 2018 Offering [Member]
Common Stock [Member]
February 2018 Offering [Member]
Additional Paid-in Capital [Member]
February 2018 Offering [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balances (in shares) at Dec. 31, 2016                           10,661,201      
Balances at Dec. 31, 2016                           $ 1 $ 68,216 $ (68,622) $ (405)
Stock offering, net of issuance costs (in shares) 8,625,000     59,249   59,249                      
Stock offering, net of issuance costs $ 1 $ 31,439 $ 31,440   $ 125 $ 125                      
Stock-based compensation expense                             1,646   1,646
Issuance of warrants in connection with note payable                             940   940
Issuance of restricted common shares (in shares)                           35,000      
Issuance of restricted common shares                             260   260
Issuance of restricted stock awards to directors, employees and consultants (in shares)                           77,783      
Issuance of restricted stock awards to directors, employees and consultants                             226   226
Issuance of common shares from employee stock purchase plan (in shares)                           17,894      
Issuance of common shares from employee stock purchase plan                             76   $ 76
Exercise of stock options (in shares)                           7,730     7,730
Exercise of stock options                             31   $ 31
Exercise of warrants (in shares)                           4,701      
Exercise of warrants                             20   20
Cashless exercise of warrant (in shares)                           15,000      
Net loss                               (36,959) (36,959)
Balances (in shares) at Dec. 31, 2017                           19,503,558      
Balances at Dec. 31, 2017                           $ 2 102,979 (105,581) (2,600)
Stock offering, net of issuance costs (in shares)       277,249   277,249 14,728,504       11,500,000            
Stock offering, net of issuance costs         $ 1,193 $ 1,193 $ 2 $ 20,383 $ 20,385 $ 1 $ 32,213 $ 32,214        
Stock-based compensation expense                             2,699   2,699
Issuance of warrants in connection with note payable                                
Issuance of restricted common shares (in shares)                           100,000      
Issuance of restricted common shares                             256   256
Issuance of restricted stock awards to directors, employees and consultants (in shares)                           128,847      
Issuance of restricted stock awards to directors, employees and consultants                             336   336
Issuance of common shares from employee stock purchase plan (in shares)                           125,787      
Issuance of common shares from employee stock purchase plan                             233   $ 233
Exercise of stock options (in shares)                                
Net loss                             (49,981) $ (49,981)
Cumulative effect adjustment from adoption of new accounting standard – ASC 606 at Dec. 31, 2017                             177 177
Balances (in shares) at Dec. 31, 2018                           46,363,945      
Balances at Dec. 31, 2018                           $ 5 $ 160,292 $ (155,385) $ 4,912