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OPERATING LEASES (Details) - USD ($) | Mar. 10, 2020 | Oct. 01, 2019 | Apr. 30, 2019 | Dec. 31, 2023 | Dec. 31, 2022 | Oct. 31, 2019
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Lessee Lease Description [Line Items] |  |  |  |  |  |
Operating Lease, Right-of-Use Asset |  |  |  | $ 3,556,000 | $ 4,147,000 |
New Jersey Office Space Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Operating Lease, Percentage of Discount Rate |  | 8.00% |  |  |  |
Operating Lease, Right-of-Use Asset |  | $ 2,356,000 |  |  |  |
Operating Lease, Liability |  | $ 2,356,000 |  |  |  |
Operating lease, initial term |  | 11 years | 11 years |  |  |
Operating lease term, option to extend additional period |  |  | 5 years |  |  |
Operating lease term, option to terminate lease |  |  | one-time option to terminate the New Jersey Lease without cause as of the 103rd month anniversary of the commencement date of the lease |  |  |
Operating lease, rent abatement period |  | 7 months |  |  |  |
Operating lease,remaining lease term |  |  |  | 6 years 9 months 18 days |  |
Foster City Office Space Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Operating Lease, Percentage of Discount Rate | 7.00% |  |  |  |  |
Operating Lease, Liability | $ 1,868,000 |  |  |  |  |
Operating lease, initial term | 87 months |  |  |  |  | 87 months
Operating lease term, option to extend additional period |  |  |  |  |  | 5 years
Operating lease, rent abatement period | 3 months |  |  |  |  |
Operating lease,remaining lease term |  |  |  | 3 years 6 months |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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