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LEASE LIABILITIES AND RIGHT OF USE ASSETS - Future minimum operating lease payments (Details) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019 | Jan. 01, 2019
--- | --- | --- | ---
LEASE LIABILITIES AND RIGHT OF USE ASSETS |  |  |
2020 | $ 192,000 |  |
2021 | 262,000 |  |
2022 | 257,000 |  |
2023 | 118,000 |  |
2024 | 81,000 |  |
Total minimum lease payments | 910,000 |  |
Less: present value discount | (96,000) |  |
Present value of minimum lease payments | 814,000 | $ 864,000 | $ 568,000
Current portion of operating lease obligations | 214,000 | 209,000 |
Operating lease obligations, less current portion | $ 600,000 | $ 655,000 |

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