v3.20.1
Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]  
Disposal Groups, Including Discontinued Operations [Table Text Block]
   March 31,
2020
   December 31,
2019
 
Cash and cash equivalents  $12,204,569   $16,350,237 
Restricted cash   171,593    174,950 
Total cash, cash equivalents and restricted cash  $12,376,162   $16,525,187 
Marketable Securities [Table Text Block]
   Amortized Cost   Gross Unrealized Losses   Gross Unrealized Gains   Fair Value 
March 31, 2020:                
                 
Money Market Funds included in Cash Equivalents  $1,567,300   $-   $-   $1,567,300 
U.S. Government Agency Securities   1,697,380    -    8,249    1,705,629 
Corporate Securities   7,348,280    (15,384)   710    7,333,606 
Commercial Paper   1,942,894    (65)   1,126    1,943,955 
Subtotal   10,988,554    (15,449)   10,085    10,983,190 
Total March 31, 2020  $12,555,854   $(15,449)  $10,085   $12,550,490 
                     
December 31, 2019:                    
                     
Money Market Funds included in Cash Equivalents  $3,472,043   $-   $51   $3,472,094 
U.S. Government Agency Securities   2,691,091    (42)   869    2,691,918 
Corporate Securities   6,058,265    (1,438)   440    6,057,267 
Commercial Paper   3,234,583    (16)   405    3,234,972 
Subtotal   11,983,939    (1,496)   1,714    11,984,157 
Total December 31, 2019  $15,455,982   $(1,496)  $1,765   $15,456,251 
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   Carrying Value   Level 1   Level 2   Level 3 
March 31, 2020:                
                 
Money Market Funds and Cash Equivalents  $1,567,300   $1,567,300   $-   $- 
U.S. Government Agency Securities   1,705,629    1,705,629    -    - 
Corporate Securities   7,333,606    -    7,333,606    - 
Commercial Paper   1,943,955    -    1,943,955    - 
Subtotal   10,983,190    1,705,629    9,277,561   $- 
Total March 31, 2020  $12,550,490   $3,272,929   $9,277,561   $- 
                     
December 31, 2019:                    
                     
Money Market Funds and Cash Equivalents  $3,472,094   $3,472,094   $-   $- 
U.S. Government Agency Securities   2,691,918    2,691,918    -    - 
Corporate Securities   6,057,267    -    6,057,267    - 
Commercial Paper   3,234,972    -    3,234,972    - 
Subtotal   11,984,157    2,691,918    9,292,239    - 
Total December 31, 2019  $15,456,251   $6,164,012   $9,292,239   $- 
Schedule Of Other Prepaid Expense [Table Text Block]
   March 31,
2020
   December 31,
2019
 
Refundable regulatory fee  $2,942,965   $- 
Insurance expense   246,464    244,828 
Subscription fees   183,734    97,983 
Software costs   104,597    10,081 
Other   84,212    93,523 
Total  $3,561,972   $446,415 
Schedule of Inventory, Current [Table Text Block]
   March 31,
2020
   December 31,
2019
 
Raw materials  $6,893   $6,893 
Finished goods   418,178    461,735 
Inventory reserve   (130,163)   (130,163)
Total  $294,908   $338,465 
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
   March 31,
2020
   December 31,
2019
 
Professional and consulting fees  $287,560   $214,777 
Accrued payroll and payroll taxes   660,243    1,287,047 
Clinical trial related   2,455,141    2,435,953 
Manufacturing development related   1,000,904    806,032 
Other   67,047    56,677 
Total  $4,470,895   $4,800,486 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   Three Months Ended
March 31,
 
   2020   2019 
   (Number of Shares of Common Stock Issuable) 
Series C non-voting preferred stock   104,000    408,000 
Series D non-voting preferred stock   -    295,848 
Series E non-voting preferred stock   391,953    391,953 
Series F non-voting preferred stock   -    2,469,137 
Series G non-voting preferred stock   5,560,137    - 
Shares issuable upon conversion of convertible debt   -    1,000,000 
Restricted stock units   417    19,917 
Shares issuable for payment of deferred board compensation   35,303    29,427 
Shares underlying outstanding warrants   183,148    3,199,788 
Shares underlying outstanding stock options   1,720,937    1,212,974 
Total potentially dilutive shares   7,995,895    9,027,044