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OPERATING LEASES (Details) - USD ($)
1 Months Ended
Sep. 10, 2019
Apr. 30, 2019
Sep. 30, 2019
Menlo Park Office Space Lease      
Operating Leased Assets [Line Items]      
Operating lease term, additional period extension 2 months    
Operating lease, weighted average remaining lease term     5 months
Operating lease, weighted average discount rate     5.00%
Operating lease initial term, aggregate minimum future lease payments     $ 354,000
New Jersey Office Space Lease      
Operating Leased Assets [Line Items]      
Operating lease, initial term   11 years  
Operating lease term, option to extend additional period   5 years  
Operating lease initial term, aggregate minimum future lease payments   $ 3,696,000  
Operating lease, rent abatement period   7 months