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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2018 $ 50 $ 27,591 $ 148,695,775 $ (118,266,441) $ 30,456,975
Balance (in shares) at Dec. 31, 2018 49,626 27,591,670      
Stock-Based Compensation Expense   $ 58 1,404,773   1,404,831
Stock-Based Compensation Expense (in shares)   57,496      
Proceeds from Common Stock Offerings   $ 5,479 19,994,528   20,000,007
Proceeds from Common Stock Offerings (in shares)   5,479,454      
Direct Costs of Common Stock Offerings     (1,145,000)   (1,145,000)
Net Loss       (26,476,370) (26,476,370)
Balance at Dec. 31, 2019 $ 50 $ 33,128 168,950,076 (144,742,811) 24,240,443
Balance (in shares) at Dec. 31, 2019 49,626 33,128,620      
Stock-Based Compensation Expense   $ 943 2,656,888   2,657,831
Stock-Based Compensation Expense (in shares)   942,986      
Stock Option Exercises   $ 44 29,176   29,220
Stock Option Exercises (in shares)   43,854      
Stock Warrant Exercises   $ 2,883 14,125,644   14,128,527
Stock Warrant Exercises (in shares)   2,882,647      
Proceeds from Common Stock Offerings   $ 8,647 26,741,355   26,750,002
Proceeds from Common Stock Offerings (in shares)   8,647,059      
Direct Costs of Common Stock Offerings     (1,550,666)   (1,550,666)
Net Loss       (17,952,172) (17,952,172)
Balance at Dec. 31, 2020 $ 50 $ 45,645 210,952,473 (162,694,983) 48,303,185
Balance (in shares) at Dec. 31, 2020 49,626 45,645,166      
Stock-Based Compensation Expense   $ 368 18,429,556   18,429,924
Stock-Based Compensation Expense (in shares)   368,047      
Stock Option Exercises   $ 659 781,618   782,277
Stock Option Exercises (in shares)   659,398      
Stock Warrant Exercises   $ 7,277 34,708,451   34,715,728
Stock Warrant Exercises (in shares)   7,276,928      
Proceeds from Common Stock Offerings   $ 4,768 97,745,239   97,750,007
Proceeds from Common Stock Offerings (in shares)   4,768,293      
Direct Costs of Common Stock Offerings     (6,136,420)   (6,136,420)
Shares Redeemed to Cover Employee Tax Withholdings   $ (83) (1,144,282)   (1,144,365)
Shares Redeemed to Cover Employee Tax Withholdings (in shares)   (83,164)      
Stock Issued for Technology License Purchase   $ 75 1,404,675   1,404,750
Stock Issued for Technology License Purchase (in shares)   75,000      
Preferred Stock Converted $ (50) $ 4,963 (10,004,913)   (10,000,000)
Preferred Stock Converted (in shares) (49,626) 4,962,600      
Net Loss       (40,377,160) (40,377,160)
Balance at Dec. 31, 2021   $ 63,672 $ 346,736,397 $ (203,072,143) $ 143,727,926
Balance (in shares) at Dec. 31, 2021   63,672,268