Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Potentially dilutive securities excluded from the computation of basic and diluted net income (loss) per share are as follows:

   

2019

   

2018

 

Series C convertible preferred stock

    82,251       190,572  

Options to purchase common stock

    3,980,804       3,135,828  

Warrants to purchase common stock

    2,744,718       4,579,511  

Vested restricted stock awards

    25,000       -  

Totals

    6,832,773       7,905,911