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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
December 31,
      2019       2018
Total potentially dilutive common shares as of:
Stock options to purchase common stock (Note 12) 8,100,500 10,008,001
Series C Convertible Preferred Stock and related accrued dividends (Note 8) 524,736 524,736
Series D Convertible Preferred Stock (Note 9) 3,628,576 3,628,576
         
Total potentially dilutive common shares    12,253,812    14,161,313
Schedule of concentration of credit risk, customer as a percentage of total revenues
December 31,
      2019       2018
Customer A      40 %      44 %
Customer B 18 % *
Customer C 18 % 20 %
Customer D * 11 %
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*       Amounts are less than 10%