Condensed Statement of Changes in Stockholders' Equity - USD ($)
|
Total |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Accumulated Deficit [Member] |
| Beginning balance at Dec. 31, 2021 |
$ 46,984,278
|
$ 767
|
$ 383,383,550
|
$ (336,400,039)
|
| Beginning balance (in shares) at Dec. 31, 2021 |
|
3,833,360
|
|
|
| Stock-based compensation - options |
10,313
|
|
10,313
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
745,620
|
|
745,620
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
40,973
|
|
40,973
|
|
| Issuance of shares for RSUs |
|
$ 4
|
(4)
|
|
| Issuance of shares for RSUs (in shares) |
|
19,396
|
|
|
| Proceeds from contributions to the ESPP |
104,217
|
|
104,217
|
|
| Net loss |
(7,152,718)
|
|
|
(7,152,718)
|
| Ending balance at Mar. 31, 2022 |
40,732,683
|
$ 771
|
384,284,669
|
(343,552,757)
|
| Ending balance (in shares) at Mar. 31, 2022 |
|
3,852,756
|
|
|
| Beginning balance at Dec. 31, 2021 |
46,984,278
|
$ 767
|
383,383,550
|
(336,400,039)
|
| Beginning balance (in shares) at Dec. 31, 2021 |
|
3,833,360
|
|
|
| Net loss |
(20,135,342)
|
|
|
|
| Ending balance at Sep. 30, 2022 |
29,257,556
|
$ 778
|
385,792,159
|
(356,535,381)
|
| Ending balance (in shares) at Sep. 30, 2022 |
|
3,886,132
|
|
|
| Beginning balance at Dec. 31, 2021 |
46,984,278
|
$ 767
|
383,383,550
|
(336,400,039)
|
| Beginning balance (in shares) at Dec. 31, 2021 |
|
3,833,360
|
|
|
| Ending balance at Dec. 31, 2022 |
24,645,475
|
$ 789
|
387,319,985
|
(362,675,299)
|
| Ending balance (in shares) at Dec. 31, 2022 |
|
3,947,267
|
|
|
| Beginning balance at Mar. 31, 2022 |
40,732,683
|
$ 771
|
384,284,669
|
(343,552,757)
|
| Beginning balance (in shares) at Mar. 31, 2022 |
|
3,852,756
|
|
|
| Stock-based compensation - options |
21,330
|
|
21,330
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
601,029
|
|
601,029
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
41,428
|
|
41,428
|
|
| Issuance of shares for RSUs |
|
$ 2
|
(2)
|
|
| Issuance of shares for RSUs (in shares) |
|
10,791
|
|
|
| Proceeds from contributions to the ESPP |
60,511
|
$ 2
|
60,509
|
|
| Proceeds from contributions to the ESPP (in shares) |
|
9,690
|
|
|
| Net loss |
(7,017,749)
|
|
|
(7,017,749)
|
| Ending balance at Jun. 30, 2022 |
34,439,232
|
$ 775
|
385,008,963
|
(350,570,506)
|
| Ending balance (in shares) at Jun. 30, 2022 |
|
3,873,237
|
|
|
| Stock-based compensation - options |
21,564
|
|
21,564
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
586,652
|
|
586,652
|
|
| Stock-based compensation - performance share units ("PSUs") |
67,922
|
|
67,922
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
22,084
|
|
22,084
|
|
| Issuance of shares for RSUs |
|
$ 3
|
(3)
|
|
| Issuance of shares for RSUs (in shares) |
|
12,895
|
|
|
| Proceeds from contributions to the ESPP |
84,977
|
|
84,977
|
|
| Net loss |
(5,964,875)
|
|
|
(5,964,875)
|
| Ending balance at Sep. 30, 2022 |
29,257,556
|
$ 778
|
385,792,159
|
(356,535,381)
|
| Ending balance (in shares) at Sep. 30, 2022 |
|
3,886,132
|
|
|
| Beginning balance at Dec. 31, 2022 |
24,645,475
|
$ 789
|
387,319,985
|
(362,675,299)
|
| Beginning balance (in shares) at Dec. 31, 2022 |
|
3,947,267
|
|
|
| Stock-based compensation - options |
21,095
|
|
21,095
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
476,242
|
|
476,242
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
24,740
|
|
24,740
|
|
| Issuance of shares for RSUs |
|
$ 2
|
(2)
|
|
| Issuance of shares for RSUs (in shares) |
|
9,347
|
|
|
| Proceeds from contributions to the ESPP |
65,134
|
|
65,134
|
|
| Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs |
2,674,697
|
$ 37
|
2,674,660
|
|
| Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs (in shares) |
|
182,511
|
|
|
| Issuance of shares in a sale of common stock, net of $3,166,139 in issuance costs and fair value of a liability warrant |
133,861
|
$ 83
|
133,778
|
|
| Issuance of shares in a sale of common stock, net of issuance costs and fair value of liability warrant(in shares) |
|
412,500
|
|
|
| Net loss |
(6,652,507)
|
|
|
(6,652,507)
|
| Ending balance at Mar. 31, 2023 |
21,388,737
|
$ 911
|
390,715,632
|
(369,327,806)
|
| Ending balance (in shares) at Mar. 31, 2023 |
|
4,551,625
|
|
|
| Beginning balance at Dec. 31, 2022 |
24,645,475
|
$ 789
|
387,319,985
|
(362,675,299)
|
| Beginning balance (in shares) at Dec. 31, 2022 |
|
3,947,267
|
|
|
| Net loss |
(14,762,267)
|
|
|
|
| Ending balance at Sep. 30, 2023 |
15,039,657
|
$ 925
|
392,476,298
|
(377,437,566)
|
| Ending balance (in shares) at Sep. 30, 2023 |
|
5,046,994
|
|
|
| Beginning balance at Mar. 31, 2023 |
21,388,737
|
$ 911
|
390,715,632
|
(369,327,806)
|
| Beginning balance (in shares) at Mar. 31, 2023 |
|
4,551,625
|
|
|
| Stock-based compensation - options |
21,330
|
|
21,330
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
455,695
|
|
455,695
|
|
| Stock-based compensation - performance share units ("PSUs") |
10,601
|
|
10,601
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
16,267
|
|
16,267
|
|
| Issuance of shares for RSUs |
|
$ 7
|
(7)
|
|
| Issuance of shares for RSUs (in shares) |
|
34,075
|
|
|
| Proceeds from contributions to the ESPP |
1,535
|
$ 3
|
1,532
|
|
| Proceeds from contributions to the ESPP (in shares) |
|
16,341
|
|
|
| Net loss |
(3,995,166)
|
|
|
(3,995,166)
|
| Ending balance at Jun. 30, 2023 |
17,898,999
|
$ 921
|
391,221,050
|
(373,322,972)
|
| Ending balance (in shares) at Jun. 30, 2023 |
|
4,602,041
|
|
|
| Stock-based compensation - options |
21,564
|
|
21,564
|
|
| Stock-based compensation - restricted stock units ("RSUs") |
341,443
|
|
341,443
|
|
| Stock-based compensation - performance share units ("PSUs") |
4,488
|
|
4,488
|
|
| Stock-based compensation - employee stock purchase plan ("ESPP") |
1,412
|
|
1,412
|
|
| Issuance of shares for RSUs (in shares) |
|
11,249
|
|
|
| Proceeds from contributions to the ESPP |
3,493
|
|
3,493
|
|
| Cash in lieu of fractional shares from reverse stock split (in shares) |
|
(1,857)
|
|
|
| Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs |
882,852
|
$ 4
|
882,848
|
|
| Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs (in shares) |
|
435,561
|
|
|
| Net loss |
(4,114,594)
|
|
|
(4,114,594)
|
| Ending balance at Sep. 30, 2023 |
$ 15,039,657
|
$ 925
|
$ 392,476,298
|
$ (377,437,566)
|
| Ending balance (in shares) at Sep. 30, 2023 |
|
5,046,994
|
|
|