Condensed Statements of Changes in Stockholders' Equity (unaudited) - USD ($) | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit |
Balance, shares at Dec. 31, 2018 | | 10,186,382 | | |
Balance, amount at Dec. 31, 2018 | $ 25,349,611 | $ 10,186 | $ 34,827,467 | $ (9,488,042) |
Stock-based compensation | 184,645 | $ 0 | 184,645 | 0 |
Exercise of common stock options, shares | | 22,733 | | |
Exercise of common stock options, amount | 174,957 | $ 23 | 174,934 | 0 |
Net loss | (1,845,908) | $ 0 | 0 | (1,845,908) |
Balance, shares at Mar. 31, 2019 | | 10,209,115 | | |
Balance, amount at Mar. 31, 2019 | 23,863,305 | $ 10,209 | 35,187,046 | (11,333,950) |
Balance, shares at Dec. 31, 2018 | | 10,186,382 | | |
Balance, amount at Dec. 31, 2018 | 25,349,611 | $ 10,186 | 34,827,467 | (9,488,042) |
Net loss | (5,550,339) | | | |
Balance, shares at Sep. 30, 2019 | | 10,248,590 | | |
Balance, amount at Sep. 30, 2019 | 20,712,429 | $ 10,249 | 35,740,561 | (15,038,381) |
Balance, shares at Mar. 31, 2019 | | 10,209,115 | | |
Balance, amount at Mar. 31, 2019 | 23,863,305 | $ 10,209 | 35,187,046 | (11,333,950) |
Stock-based compensation | 192,246 | 0 | 192,246 | 0 |
Net loss | (1,720,177) | $ 0 | 0 | (1,720,177) |
Exercise of common stock options, net of shares withheld for exercise price, shares | | 4,325 | | |
Exercise of common stock options, net of shares withheld for exercise price, amount | 0 | $ 4 | (4) | 0 |
Employee stock purchases, shares | | 6,876 | | |
Employee stock purchases, amount | 58,065 | $ 7 | 58,058 | 0 |
Balance, shares at Jun. 30, 2019 | | 10,220,316 | | |
Balance, amount at Jun. 30, 2019 | 22,393,439 | $ 10,220 | 35,437,346 | (13,054,127) |
Stock-based compensation | 303,244 | 0 | 303,244 | 0 |
Net loss | (1,984,254) | $ 0 | 0 | (1,984,254) |
Exercise of common stock options, net of shares withheld for exercise price, shares | | 28,274 | | |
Exercise of common stock options, net of shares withheld for exercise price, amount | 0 | $ 29 | (29) | 0 |
Balance, shares at Sep. 30, 2019 | | 10,248,590 | | |
Balance, amount at Sep. 30, 2019 | 20,712,429 | $ 10,249 | 35,740,561 | (15,038,381) |
Balance, shares at Dec. 31, 2019 | | 10,253,988 | | |
Balance, amount at Dec. 31, 2019 | 19,297,571 | $ 10,254 | 36,134,723 | (16,847,406) |
Stock-based compensation | 464,649 | 0 | 464,649 | 0 |
Net loss | (2,246,995) | $ 0 | 0 | (2,246,995) |
Balance, shares at Mar. 31, 2020 | | 10,253,988 | | |
Balance, amount at Mar. 31, 2020 | 17,515,225 | $ 10,254 | 36,599,372 | (19,094,401) |
Balance, shares at Dec. 31, 2019 | | 10,253,988 | | |
Balance, amount at Dec. 31, 2019 | 19,297,571 | $ 10,254 | 36,134,723 | (16,847,406) |
Net loss | (6,923,282) | | | |
Balance, shares at Sep. 30, 2020 | | 10,289,253 | | |
Balance, amount at Sep. 30, 2020 | 13,761,975 | $ 10,289 | 37,522,374 | (23,770,688) |
Balance, shares at Mar. 31, 2020 | | 10,253,988 | | |
Balance, amount at Mar. 31, 2020 | 17,515,225 | $ 10,254 | 36,599,372 | (19,094,401) |
Stock-based compensation | 423,193 | 16 | 423,177 | 0 |
Net loss | (2,201,989) | $ 0 | 0 | (2,201,989) |
Employee stock purchases, shares | | 4,678 | | |
Employee stock purchases, amount | 23,897 | $ 4 | 23,893 | 0 |
Stock-based compensation, shares | | 15,686 | | |
Issuance of common stock in an at-the-market ("ATM") offering, shares | | 14,901 | | |
Issuance of common stock in an at-the-market ("ATM") offering, amount | 154,142 | $ 15 | 154,127 | 0 |
Issuance costs associated with ATM offering | (52,110) | $ 0 | (52,110) | 0 |
Balance, shares at Jun. 30, 2020 | | 10,289,253 | | |
Balance, amount at Jun. 30, 2020 | 15,862,358 | $ 10,289 | 37,148,459 | (21,296,390) |
Stock-based compensation | 448,947 | 0 | 448,947 | 0 |
Net loss | (2,474,298) | 0 | 0 | (2,474,298) |
Issuance costs associated with ATM offering | (75,032) | $ 0 | (75,032) | 0 |
Balance, shares at Sep. 30, 2020 | | 10,289,253 | | |
Balance, amount at Sep. 30, 2020 | $ 13,761,975 | $ 10,289 | $ 37,522,374 | $ (23,770,688) |