Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Director [Member]
Preferred Stock
Common Stock
Common Stock
Director [Member]
Additional Paid-in Capital
Additional Paid-in Capital
Director [Member]
Accumulated Deficit
Balance at Dec. 31, 2015 $ 16,092,871   $ 50 $ 16,088   $ 73,665,601   $ (57,588,868)
Balance (in shares) at Dec. 31, 2015     49,626 16,087,951        
Exercise of Warrants 60,751   $ 0 $ 97   60,654   0
Exercise of Warrants (in shares)     0 96,620        
Reclass Fair Value of Warrant Derivative Liability upon Exercise 32,911   $ 0 $ 0   32,911   0
Exercise of Stock Options 33,082   $ 0 $ 10   33,072   0
Exercise of Stock Options (in shares)     0 10,082        
Conversion of Notes Payable and Accrued Interest 342,036   $ 0 $ 152   341,884   0
Conversion of Notes Payable and Accrued Interest (in shares)     0 152,016        
Stock-Based Compensation Expense 756,928   $ 0 $ 0   756,928   0
Stock-Based Compensation Expense (in shares)     0 0        
Proceeds from Common Stock Offerings 21,112,500     $ 3,150   21,109,350    
Proceeds from Common Stock Offerings (in shares)     0 3,150,000        
Direct Costs of Common Stock Offerings (1,874,485)   $ 0 $ 0   (1,874,485)   0
Common Stock Issued for Services 174,025   $ 0 $ 32   173,993   0
Common Stock Issued for Services (in shares)     0 32,578        
Common Stock Awards to Management   $ 241,300     $ 40   $ 241,260  
Common Stock Awards to Management (in shares)         40,000      
Net Loss (19,250,082)   $ 0 $ 0   0   (19,250,082)
Balance at Dec. 31, 2016 17,721,837   $ 50 $ 19,569   94,541,168   (76,838,950)
Balance (in shares) at Dec. 31, 2016     49,626 19,569,247        
Exercise of Warrants 0   $ 0 $ 168   (168)   0
Exercise of Warrants (in shares)     0 168,203        
Exercise of Stock Options 0   $ 0 $ 37   (37)   0
Exercise of Stock Options (in shares)     0 37,261        
Conversion of Notes Payable and Accrued Interest 1,861,283   $ 0 $ 827   1,860,456   0
Conversion of Notes Payable and Accrued Interest (in shares)     0 827,237        
Stock-Based Compensation Expense 1,355,522   $ 0 $ 17   1,355,505   0
Stock-Based Compensation Expense (in shares)     0 16,668        
Proceeds from Common Stock Offerings 21,128,502   $ 0 $ 3,566   21,124,936   0
Proceeds from Common Stock Offerings (in shares)     0 3,566,116        
Direct Costs of Common Stock Offerings (1,617,679)   $ 0 $ 0   (1,617,679)   0
Common Stock Issued for Services 228,750   $ 0 $ 42   228,708   0
Common Stock Issued for Services (in shares)     0 41,543        
Common Stock Awards to Management   $ 335,000     $ 50   $ 334,950  
Common Stock Awards to Management (in shares)         50,000      
Net Loss (19,633,502)   $ 0 $ 0   0   (19,633,502)
Balance at Dec. 31, 2017 21,379,713   $ 50 $ 24,276   117,827,839   (96,472,452)
Balance (in shares) at Dec. 31, 2017     49,626 24,276,275        
Cumulative Revenue Adjustment - ASC 606 Adoption 81,724   $ 0 $ 0   0   81,724
Exercise of Warrants 39,373   $ 0 $ 84   39,289   0
Exercise of Warrants (in shares)     0 84,210        
Settlement of Derivative Liability upon Exercise of Warrants 166,800   $ 0 $ 0   166,800   0
Exercise of Stock Options 0   $ 0 $ 41   (41)   0
Exercise of Stock Options (in shares)     0 41,111        
Stock-Based Compensation Expense 1,620,478   $ 0 $ 28   1,620,450   0
Stock-Based Compensation Expense (in shares)     0 27,915        
Proceeds from Common Stock Offerings 30,000,000   $ 0 $ 3,000   29,997,000   0
Proceeds from Common Stock Offerings (in shares)     0 3,000,000        
Direct Costs of Common Stock Offerings (1,975,000)   $ 0 $ 0   (1,975,000)   0
Common Stock Issued for Services 100,000   $ 0 $ 17   99,983   0
Common Stock Issued for Services (in shares)     0 17,159        
Common Stock Awards 919,600   $ 0 $ 145   919,455   0
Common Stock Awards (in shares)     0 145,000        
Net Loss (21,875,713)   $ 0 $ 0   0   (21,875,713)
Balance at Dec. 31, 2018 $ 30,456,975   $ 50 $ 27,591   $ 148,695,775   $ (118,266,441)
Balance (in shares) at Dec. 31, 2018     49,626 27,591,670