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Condensed Statements of Changes in Stockholders' Equity - USD ($) | Total | Common Stock | Additional Paid-In Capital | Retained Earnings (Accumulated Deficit)
--- | --- | --- | --- | ---
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 | (4,448,984) |  |  |
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)
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)
Net loss | (2,201,989) | $ 0 | 0 | (2,201,989)
Stock-based compensation, shares |  | 15,686 |  |
Stock-based compensation, amount | 423,193 | $ 16 | 423,177 | 0
Employee stock purchases, shares |  | 4,678 |  |
Employee stock purchases, amount | 23,897 | $ 4 | 23,893 | 0
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)
Balance, shares at Dec. 31, 2020 |  | 10,299,822 |  |
Balance, amount at Dec. 31, 2020 | 11,702,270 | $ 10,300 | 38,013,551 | (26,321,581)
Net loss | (2,791,668) | 0 | 0 | (2,791,668)
Stock-based compensation, amount | 449,098 | $ 0 | 449,098 | 0
Issuance of common stock in an at-the-market ("ATM") offering, shares |  | 3,082 |  |
Issuance of common stock in an at-the-market ("ATM") offering, amount | 38,962 | $ 3 | 38,959 | 0
Issuance costs associated with ATM offering | (3,868) | $ 0 | (3,868) | 0
Exercise of common stock warrants, shares |  | 1,185 |  |
Exercise of common stock warrants, amount | 11,257 | $ 1 | 11,256 | 0
Exercise of common stock options, net of shares withheld for exercise price, shares |  | 12,707 |  |
Exercise of common stock options, net of shares withheld for exercise price, amount | 0 | $ 13 | (13) | 0
Issuance of common stock upon closing of follow-on offering, net of underwriting discounts and offering costs, shares |  | 1,971,100 |  |
Issuance of common stock upon closing of follow-on offering, net of underwriting discounts and offering costs, amount | 25,768,493 | $ 1,971 | 25,766,522 | 0
Balance, shares at Mar. 31, 2021 |  | 12,287,896 |  |
Balance, amount at Mar. 31, 2021 | 35,174,544 | $ 12,288 | 64,275,505 | (29,113,249)
Balance, shares at Dec. 31, 2020 |  | 10,299,822 |  |
Balance, amount at Dec. 31, 2020 | 11,702,270 | $ 10,300 | 38,013,551 | (26,321,581)
Net loss | (16,824,520) |  |  |
Balance, shares at Jun. 30, 2021 |  | 12,654,898 |  |
Balance, amount at Jun. 30, 2021 | 27,034,524 | $ 12,655 | 70,167,970 | (43,146,101)
Balance, shares at Mar. 31, 2021 |  | 12,287,896 |  |
Balance, amount at Mar. 31, 2021 | 35,174,544 | $ 12,288 | 64,275,505 | (29,113,249)
Net loss | (14,032,852) | 0 | 0 | (14,032,852)
Stock-based compensation, amount | 540,317 | $ 3 | 540,314 | 0
Employee stock purchases, shares |  | 5,496 |  |
Employee stock purchases, amount | 25,817 | $ 6 | 25,811 | 0
Exercise of common stock options, net of shares withheld for exercise price, shares |  | 9,136 |  |
Exercise of common stock options, net of shares withheld for exercise price, amount | 36,859 | $ 9 | 36,850 | 0
Stock-based compensation, shares |  | 2,964 |  |
Warrant issued - note payable | 289,839 |  | 289,839 | 0
Issuance of common stock, licensing agreement, shares |  | 349,406 |  |
Issuance of common stock, licensing agreement, amount | 5,000,000 | $ 349 | 4,999,651 | 0
Balance, shares at Jun. 30, 2021 |  | 12,654,898 |  |
Balance, amount at Jun. 30, 2021 | $ 27,034,524 | $ 12,655 | $ 70,167,970 | $ (43,146,101)

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