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OPERATING LEASE (Tables) | 3 Months Ended
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Mar. 31, 2019
Leases [Abstract] |
Components of lease costs | The components of lease costs included in operating expenses in our condensed statements of operations were as follows:
|  | Three Months Ended March 31, |
(In thousands) |  | 2019 |  |  | 2018 |
Operating lease costs |  | $ | 173 |  |  | $ | 168 |
Variable lease costs (1) |  |  | 2 |  |  |  | 24 |
Total lease costs |  | $ | 175 |  |  | $ | 192 |
| (1) | Variable lease costs represent non-lease components, such as common area maintenance charges.
Future minimum payments under operating lease | As of March 31, 2019, future minimum payments under the operating lease were as follows (in thousands):
2019 |  | $ | 525 |
2020 |  |  | 58 |
Total lease payments |  |  | 583 |
Less: imputed interest |  |  | (12 | )
Total |  | $ | 571 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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