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 $ 2 [1] $ 191,769 $ (166,246)
Balance, shares at Dec. 31, 2019 [1]   2,043,701    
Issuance of common stock upon exercise of stock options 304   304  
Issuance of common stock upon exercise of stock options, shares [1]   36,663    
Issuance of common stock, net of issuance costs 25,056   25,056  
Issuance of common stock, net of issuance costs, shares [1]   3,680    
Issuance of common stock, debt repayment 6,170 $ 1 [1] 6,169  
Issuance of common stock, debt repayment, shares [1]   822,682    
Issuance of common stock upon exercise of ESPP 42   42  
Issuance of common stock upon exercise of ESPP, shares [1]   6,426    
Net settlement of common stock upon release of RSU (6)   (6)  
Net settlement of common stock upon release of RSU, shares [1]   11,319    
Employee and nonemployee stock-based compensation 770   770  
Net loss (23,524)     (23,524)
Balance, at end of period at Sep. 30, 2020 34,337 $ 3 [1] 224,104 (189,770)
Balance, shares at Sep. 30, 2020 [1]   2,924,471    
Balance, beginning of period at Jun. 30, 2020 40,255 $ 3 [1] 223,558 (183,306)
Balance, shares at Jun. 30, 2020 [1]   2,916,372    
Issuance of common stock upon exercise of stock options 1   1  
Issuance of common stock upon exercise of stock options, shares [1]   287    
Issuance of common stock, net of issuance costs 64   64  
Issuance of common stock, debt repayment 169   169  
Net settlement of common stock upon release of RSU, shares [1]   7,812    
Employee and nonemployee stock-based compensation 312   312  
Net loss (6,464)     (6,464)
Balance, at end of period at Sep. 30, 2020 34,337 $ 3 [1] 224,104 (189,770)
Balance, shares at Sep. 30, 2020 [1]   2,924,471    
Balance, beginning of period at Dec. 31, 2020 28,410 $ 7 [1] 224,581 (196,178)
Balance, shares at Dec. 31, 2020 [1]   6,631,039    
Issuance of common stock upon exercise of stock options $ 5   5  
Issuance of common stock upon exercise of stock options, shares 707 707 [1]    
Issuance of common stock, net of issuance costs $ 10,337 $ 2 [1] 10,335  
Issuance of common stock, net of issuance costs, shares [1]   2,555,788    
Issuance of common stock upon exercise of ESPP 38   38  
Issuance of common stock upon exercise of ESPP, shares [1]   9,992    
Net settlement of common stock upon release of RSU, shares [1]   55,683    
Employee and nonemployee stock-based compensation 760   760  
Common stock variance, reverse stock split [1]   29    
Net loss (26,905)     (26,905)
Balance, at end of period at Sep. 30, 2021 12,645 $ 9 [1] 235,719 (223,083)
Balance, shares at Sep. 30, 2021 [1]   9,253,238    
Balance, beginning of period at Jun. 30, 2021 12,962 $ 7 [1] 225,099 (212,144)
Balance, shares at Jun. 30, 2021 [1]   6,695,272    
Issuance of common stock, net of issuance costs 10,337 $ 2 [1] 10,335  
Issuance of common stock, net of issuance costs, shares [1]   2,555,788    
Net settlement of common stock upon release of RSU, shares [1]   2,149    
Employee and nonemployee stock-based compensation 285   285  
Common stock variance, reverse stock split [1]   29    
Net loss (10,939)     (10,939)
Balance, at end of period at Sep. 30, 2021 $ 12,645 $ 9 [1] $ 235,719 $ (223,083)
Balance, shares at Sep. 30, 2021 [1]   9,253,238    
[1] Reflects the 1-for-10 reverse stock split that became effective on September 15, 2021. Refer to Note 1 – The Company and its Significant Accounting Policies for further information.