CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Thousands |
Total |
Redeemable Convertible Preferred Stock And Preferred Stock Dividends To Common Stock |
Convertible Notes Payable And Accrued Interest To Common Stock |
Series A, B, C & C-1 Redeemable Convertible Preferred Stock |
Series A, B, C & C-1 Redeemable Convertible Preferred Stock
Redeemable Convertible Preferred Stock And Preferred Stock Dividends To Common Stock
|
Common Stock |
Common Stock
Redeemable Convertible Preferred Stock And Preferred Stock Dividends To Common Stock
|
Common Stock
Convertible Notes Payable And Accrued Interest To Common Stock
|
Additional Paid-In Capital |
Additional Paid-In Capital
Redeemable Convertible Preferred Stock And Preferred Stock Dividends To Common Stock
|
Additional Paid-In Capital
Convertible Notes Payable And Accrued Interest To Common Stock
|
Accumulated Other Comprehensive Loss |
Accumulated Deficit |
Beginning Balance (in shares) at Dec. 31, 2018 |
|
|
|
1,256,466
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2018 |
|
|
|
$ 58,290
|
|
|
|
|
|
|
|
|
|
Increase (Decrease) in Temporary Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Reduction of redeemable convertible preferred stock to redemption value |
|
|
|
$ (10,519)
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Mar. 31, 2019 |
|
|
|
1,256,466
|
|
|
|
|
|
|
|
|
|
Ending Balance at Mar. 31, 2019 |
|
|
|
$ 47,771
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Dec. 31, 2018 |
|
|
|
|
|
589,001
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2018 |
$ (71,618)
|
|
|
|
|
$ 6
|
|
|
$ 0
|
|
|
$ 0
|
$ (71,624)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Reduction of redeemable convertible preferred stock to redemption value |
10,519
|
|
|
|
|
|
|
|
|
|
|
|
10,519
|
Stock based compensation |
384
|
|
|
|
|
|
|
|
384
|
|
|
|
|
Net income (loss) |
(4,580)
|
|
|
|
|
|
|
|
|
|
|
|
(4,580)
|
Ending Balance (in shares) at Mar. 31, 2019 |
|
|
|
|
|
589,001
|
|
|
|
|
|
|
|
Ending Balance at Mar. 31, 2019 |
(65,295)
|
|
|
|
|
$ 6
|
|
|
384
|
|
|
0
|
(65,685)
|
Beginning Balance (in shares) at Dec. 31, 2018 |
|
|
|
1,256,466
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2018 |
|
|
|
$ 58,290
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2019 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2019 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Dec. 31, 2018 |
|
|
|
|
|
589,001
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2018 |
(71,618)
|
|
|
|
|
$ 6
|
|
|
0
|
|
|
0
|
(71,624)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Unrealized loss on available-for-sale marketable securities |
(11)
|
|
|
|
|
|
|
|
|
|
|
|
|
Net income (loss) |
(13,015)
|
|
|
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2019 |
|
|
|
|
|
7,810,680
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2019 |
18,225
|
|
|
|
|
$ 78
|
|
|
92,278
|
|
|
(11)
|
(74,120)
|
Beginning Balance (in shares) at Mar. 31, 2019 |
|
|
|
1,256,466
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2019 |
|
|
|
$ 47,771
|
|
|
|
|
|
|
|
|
|
Increase (Decrease) in Temporary Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Accretion of redeemable convertible preferred stock to redemption value |
|
|
|
$ 163
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Jun. 30, 2019 |
|
|
|
1,256,466
|
|
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2019 |
|
|
|
$ 47,934
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Mar. 31, 2019 |
|
|
|
|
|
589,001
|
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2019 |
(65,295)
|
|
|
|
|
$ 6
|
|
|
384
|
|
|
0
|
(65,685)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Accretion of redeemable convertible preferred stock to redemption value |
(163)
|
|
|
|
|
|
|
|
(163)
|
|
|
|
|
Stock based compensation |
299
|
|
|
|
|
|
|
|
299
|
|
|
|
|
Net income (loss) |
(3,654)
|
|
|
|
|
|
|
|
|
|
|
|
(3,654)
|
Ending Balance (in shares) at Jun. 30, 2019 |
|
|
|
|
|
589,001
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2019 |
(68,813)
|
|
|
|
|
$ 6
|
|
|
520
|
|
|
0
|
(69,339)
|
Increase (Decrease) in Temporary Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Accretion of redeemable convertible preferred stock to redemption value |
|
|
|
$ 82
|
|
|
|
|
|
|
|
|
|
Conversion of redeemable convertible preferred stock and preferred stock dividends to common stock (in shares) |
|
|
|
|
(1,256,466)
|
|
|
|
|
|
|
|
|
Conversion of redeemable convertible preferred stock and preferred stock dividends to common stock |
|
|
|
|
$ (48,016)
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2019 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2019 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs (in shares) |
|
|
|
|
|
|
2,783,951
|
1,069,740
|
|
|
|
|
|
Common stock issued, net of issuance costs |
|
$ 48,016
|
$ 5,092
|
|
|
|
$ 28
|
$ 10
|
|
$ 47,988
|
$ 5,082
|
|
|
Accretion of redeemable convertible preferred stock to redemption value |
(82)
|
|
|
|
|
|
|
|
(82)
|
|
|
|
|
Common stock issued in recapitalization (in shares) |
|
|
|
|
|
3,367,988
|
|
|
|
|
|
|
|
Common stock issued in recapitalization |
36,093
|
|
|
|
|
$ 34
|
|
|
36,059
|
|
|
|
|
Reclassification of warrant liability to equity |
1,511
|
|
|
|
|
|
|
|
1,511
|
|
|
|
|
Common stock warrants issued in connection with the research and development funding liability |
876
|
|
|
|
|
|
|
|
876
|
|
|
|
|
Stock based compensation |
324
|
|
|
|
|
|
|
|
324
|
|
|
|
|
Unrealized loss on available-for-sale marketable securities |
(11)
|
|
|
|
|
|
|
|
|
|
|
(11)
|
|
Net income (loss) |
(4,781)
|
|
|
|
|
|
|
|
|
|
|
|
(4,781)
|
Ending Balance (in shares) at Sep. 30, 2019 |
|
|
|
|
|
7,810,680
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2019 |
$ 18,225
|
|
|
|
|
$ 78
|
|
|
92,278
|
|
|
(11)
|
(74,120)
|
Beginning Balance (in shares) at Dec. 31, 2019 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2019 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Mar. 31, 2020 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Mar. 31, 2020 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Dec. 31, 2019 |
8,480,968
|
|
|
|
|
8,480,968
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2019 |
$ 7,574
|
|
|
|
|
$ 85
|
|
|
92,497
|
|
|
(28)
|
(84,980)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs (in shares) |
|
|
|
|
|
950,000
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs |
1,990
|
|
|
|
|
$ 10
|
|
|
1,980
|
|
|
|
|
Issuance of common stock upon exercise of warrants (in shares) |
|
|
|
|
|
221,293
|
|
|
|
|
|
|
|
Issuance of common stock upon exercise of warrants |
15
|
|
|
|
|
$ 2
|
|
|
13
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes (in shares) |
|
|
|
|
|
19,643
|
|
|
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes |
(13)
|
|
|
|
|
|
|
|
(13)
|
|
|
|
|
Stock based compensation |
403
|
|
|
|
|
|
|
|
403
|
|
|
|
|
Unrealized loss on available-for-sale marketable securities |
28
|
|
|
|
|
|
|
|
|
|
|
28
|
|
Net income (loss) |
(4,103)
|
|
|
|
|
|
|
|
|
|
|
|
(4,103)
|
Ending Balance (in shares) at Mar. 31, 2020 |
|
|
|
|
|
9,671,904
|
|
|
|
|
|
|
|
Ending Balance at Mar. 31, 2020 |
$ 5,894
|
|
|
|
|
$ 97
|
|
|
94,880
|
|
|
0
|
(89,083)
|
Beginning Balance (in shares) at Dec. 31, 2019 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2019 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2020 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2020 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Dec. 31, 2019 |
8,480,968
|
|
|
|
|
8,480,968
|
|
|
|
|
|
|
|
Beginning Balance at Dec. 31, 2019 |
$ 7,574
|
|
|
|
|
$ 85
|
|
|
92,497
|
|
|
(28)
|
(84,980)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Unrealized loss on available-for-sale marketable securities |
28
|
|
|
|
|
|
|
|
|
|
|
|
|
Net income (loss) |
$ (13,548)
|
|
|
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2020 |
31,241,636
|
|
|
|
|
31,241,636
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2020 |
$ 18,712
|
|
|
|
|
$ 312
|
|
|
116,928
|
|
|
0
|
(98,528)
|
Beginning Balance (in shares) at Mar. 31, 2020 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2020 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Ending Balance (in shares) at Jun. 30, 2020 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2020 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Beginning Balance (in shares) at Mar. 31, 2020 |
|
|
|
|
|
9,671,904
|
|
|
|
|
|
|
|
Beginning Balance at Mar. 31, 2020 |
5,894
|
|
|
|
|
$ 97
|
|
|
94,880
|
|
|
0
|
(89,083)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs (in shares) |
|
|
|
|
|
14,790,133
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs |
18,679
|
|
|
|
|
$ 148
|
|
|
18,531
|
|
|
|
|
Issuance of common stock upon exercise of warrants (in shares) |
|
|
|
|
|
2,202,863
|
|
|
|
|
|
|
|
Issuance of common stock upon exercise of warrants |
7
|
|
|
|
|
$ 22
|
|
|
(15)
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes (in shares) |
|
|
|
|
|
6,673
|
|
|
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes |
(4)
|
|
|
|
|
|
|
|
(4)
|
|
|
|
|
Stock based compensation |
453
|
|
|
|
|
|
|
|
453
|
|
|
|
|
Net income (loss) |
(5,119)
|
|
|
|
|
|
|
|
|
|
|
|
(5,119)
|
Ending Balance (in shares) at Jun. 30, 2020 |
|
|
|
|
|
26,671,573
|
|
|
|
|
|
|
|
Ending Balance at Jun. 30, 2020 |
19,910
|
|
|
|
|
$ 267
|
|
|
113,845
|
|
|
0
|
(94,202)
|
Ending Balance (in shares) at Sep. 30, 2020 |
|
|
|
0
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2020 |
|
|
|
$ 0
|
|
|
|
|
|
|
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs (in shares) |
|
|
|
|
|
3,400,418
|
|
|
|
|
|
|
|
Common stock issued, net of issuance costs |
2,596
|
|
|
|
|
$ 34
|
|
|
2,562
|
|
|
|
|
Issuance of common stock upon exercise of warrants (in shares) |
|
|
|
|
|
1,113,424
|
|
|
|
|
|
|
|
Issuance of common stock upon exercise of warrants |
1
|
|
|
|
|
$ 11
|
|
|
(10)
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes (in shares) |
|
|
|
|
|
56,221
|
|
|
|
|
|
|
|
Issuance of common stock upon restricted stock unit settlement, net of shares withheld for taxes |
(22)
|
|
|
|
|
|
|
|
(22)
|
|
|
|
|
Stock based compensation |
553
|
|
|
|
|
|
|
|
553
|
|
|
|
|
Unrealized loss on available-for-sale marketable securities |
0
|
|
|
|
|
|
|
|
|
|
|
|
|
Net income (loss) |
$ (4,326)
|
|
|
|
|
|
|
|
|
|
|
|
(4,326)
|
Ending Balance (in shares) at Sep. 30, 2020 |
31,241,636
|
|
|
|
|
31,241,636
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2020 |
$ 18,712
|
|
|
|
|
$ 312
|
|
|
$ 116,928
|
|
|
$ 0
|
$ (98,528)
|