Quarterly report pursuant to Section 13 or 15(d)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]  
Schedule of Cash and Restricted Cash
    March 31, 2018     December 31, 2017  
             
Cash   $ 3,106,218     $ 2,012,965  
Restricted cash     781,310       778,579  
Total cash and restricted cash shown in the statement of cash flows   $ 3,887,528     $ 2,791,544  
Schedule of property and equipment
    Useful Lives   March 31, 2018     December 31, 2017  
                 
Office furniture and equipment   3 years   $ 655,593     $ 537,607  
Laboratory and other equipment   5 years     418,526       398,997  
Tenant improvements   14 to 39 months     1,617,100       1,545,885  
          2,691,219       2,482,489  
Less: accumulated depreciation         (509,252 )     (399,056 )
        $ 2,181,967     $ 2,083,433