Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED)

v3.22.2
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Balance, beginning of period at Dec. 31, 2019 $ 25,525 $ 20 $ 191,751 $ (166,246)
Balance, shares at Dec. 31, 2019   20,437,235    
Issuance of common stock, net of issuance costs 24,992 $ 37 24,955  
Issuance of common stock, net of issuance costs, shares   36,800,000    
Issuance of common stock, debt repayment 6,001 $ 8 5,993  
Issuance of common stock, debt repayment, shares   8,226,834    
Issuance of common stock upon exercise of stock options 303 $ 1 302  
Issuance of common stock upon exercise of stock options, shares   363,857    
Issuance of common stock upon exercise of ESPP 42   42  
Issuance of common stock upon exercise of ESPP, shares   64,320    
Net settlement of common stock upon release of RSU (6)   (6)  
Net settlement of common stock upon release of RSU, shares   35,070    
Employee and nonemployee stock-based compensation 458   458  
Net loss (17,060)     (17,060)
Balance, at end of period at Jun. 30, 2020 40,255 $ 66 223,495 (183,306)
Balance, shares at Jun. 30, 2020   65,927,316    
Balance, beginning of period at Mar. 31, 2020 15,994 $ 21 192,183 (176,210)
Balance, shares at Mar. 31, 2020   20,677,360    
Issuance of common stock, net of issuance costs 24,992 $ 37 24,955  
Issuance of common stock, net of issuance costs, shares   36,800,000    
Issuance of common stock, debt repayment 6,001 $ 8 5,993  
Issuance of common stock, debt repayment, shares   8,226,834    
Issuance of common stock upon exercise of stock options 93   93  
Issuance of common stock upon exercise of stock options, shares   119,942    
Issuance of common stock upon exercise of ESPP 42   42  
Issuance of common stock upon exercise of ESPP, shares   68,110    
Net settlement of common stock upon release of RSU (6)   (6)  
Net settlement of common stock upon release of RSU, shares   35,070    
Employee and nonemployee stock-based compensation 235   235  
Net loss (7,096)     (7,096)
Balance, at end of period at Jun. 30, 2020 40,255 $ 66 223,495 (183,306)
Balance, shares at Jun. 30, 2020   65,927,316    
Balance, beginning of period at Dec. 31, 2020 28,410 $ 66 224,552 (196,178)
Balance, shares at Dec. 31, 2020   66,310,867    
Issuance of common stock upon exercise of stock options $ 5   5  
Issuance of common stock upon exercise of stock options, shares 7,082 7,082    
Issuance of common stock upon exercise of ESPP $ 38   38  
Issuance of common stock upon exercise of ESPP, shares   99,983    
Net settlement of common stock upon release of RSU   $ 1 (1)  
Net settlement of common stock upon release of RSU, shares   535,375    
Employee and nonemployee stock-based compensation 475   475  
Net loss (15,966)     (15,966)
Balance, at end of period at Jun. 30, 2021 12,962 $ 67 225,039 (212,144)
Balance, shares at Jun. 30, 2021   66,953,307    
Balance, beginning of period at Mar. 31, 2021 19,431 $ 66 224,823 (205,458)
Balance, shares at Mar. 31, 2021   66,317,949    
Issuance of common stock upon exercise of ESPP 38   38  
Issuance of common stock upon exercise of ESPP, shares   99,983    
Net settlement of common stock upon release of RSU   $ 1 (1)  
Net settlement of common stock upon release of RSU, shares   535,375    
Employee and nonemployee stock-based compensation 179   179  
Net loss (6,686)     (6,686)
Balance, at end of period at Jun. 30, 2021 $ 12,962 $ 67 $ 225,039 $ (212,144)
Balance, shares at Jun. 30, 2021   66,953,307