Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Unaudited)

v3.19.2
Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Other Comprehensive Loss
Beginning balance at Dec. 31, 2017 $ 7,904   $ 3 $ 110,265 $ (102,017) $ (347)
Beginning balance (in shares) at Dec. 31, 2017     24,559,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, net of vesting of restricted shares 127     127    
Exercise of stock options, net of vesting of restricted shares (in shares)     226,000      
Issuance of common stock, net of issuance costs 9,574     9,574    
Issuance of common stock, net of issuance costs (in shares)     1,086,000      
Stock-based compensation expense 211     211    
43100 (27)         (27)
Exercise of stock options, net of vesting of restricted shares (2,692)       (2,692)  
Ending balance at Jun. 30, 2018 15,097   $ 3 120,177 (104,709) (374)
Ending balance (in shares) at Jun. 30, 2018     25,871,000      
Beginning balance at Mar. 31, 2018 5,772   $ 3 115,243 (109,181) (293)
Beginning balance (in shares) at Mar. 31, 2018     25,135,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, net of vesting of restricted shares 102     102    
Exercise of stock options, net of vesting of restricted shares (in shares)     193,000      
Issuance of common stock, net of issuance costs 4,770     4,770    
Issuance of common stock, net of issuance costs (in shares)     543,000      
Stock-based compensation expense 62     62    
43100 (81)         (81)
Exercise of stock options, net of vesting of restricted shares 4,472       4,472  
Ending balance at Jun. 30, 2018 15,097   $ 3 120,177 (104,709) (374)
Ending balance (in shares) at Jun. 30, 2018     25,871,000      
Beginning balance at Dec. 31, 2018 5,827 $ 5,377 $ 3 118,062 (111,820) (418)
Beginning balance (in shares) at Dec. 31, 2018   6 27,253,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, net of vesting of restricted shares 52     52    
Exercise of stock options, net of vesting of restricted shares (in shares)     119,000      
Exercise of common stock warrants for cash 6,184     6,184    
Exercise of common stock warrants for cash (in shares)     617,000      
Exercise of common stock warrants pursuant to cashless provisions 0   $ 1 (1)    
Exercise of common stock warrants pursuant to cashless provisions (in shares)     10,913,000      
Series A convertible preferred stock redeemed for cash (863) $ (5,377)   (863)    
Series A convertible preferred stock redeemed for cash (in shares)   (6)        
Waiver of sponsor promissory note originally issued in conjunction with Reverse Merger and Recapitalization 1,993     1,993    
Stock-based compensation expense 427     427    
43100 (3)         (3)
Exercise of stock options, net of vesting of restricted shares (6,561)       (6,561)  
Ending balance at Jun. 30, 2019 8,143   $ 4 125,854 (117,294) (421)
Ending balance (in shares) at Jun. 30, 2019     38,902,000      
Beginning balance at Mar. 31, 2019 10,807   $ 4 125,421 (114,227) (391)
Beginning balance (in shares) at Mar. 31, 2019     38,331,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options, net of vesting of restricted shares 17     17    
Exercise of stock options, net of vesting of restricted shares (in shares)     58,000      
Exercise of common stock warrants pursuant to cashless provisions 0          
Exercise of common stock warrants pursuant to cashless provisions (in shares)     513,000      
Stock-based compensation expense 416     416    
43100 (30)         (30)
Exercise of stock options, net of vesting of restricted shares (3,067)       (3,067)  
Ending balance at Jun. 30, 2019 8,143   $ 4 $ 125,854 (117,294) $ (421)
Ending balance (in shares) at Jun. 30, 2019     38,902,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Cumulative-effect adjustment resulting from the adoption of ASU 2014-09 (Note 2) $ 1,087       $ 1,087