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LEASE LIABILITIES (Tables) | 9 Months Ended
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Sep. 30, 2019
LEASE LIABILITIES |
Schedule of lease liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Total discounted lease liabilities
​ | ​ | September 30, 2019 | ​ | December 31, 2018
Finance leases | ​ | $ | 6,588 | ​ | ​ | 6,429
Operating lease | ​ | ​ | 922 | ​ | $ | —
Lease liabilities | ​ | $ | 7,510 | ​ | $ | 6,429
Current portion | ​ | ​ | (2,045) | ​ | ​ | (1,511)
Long-term portion | ​ | $ | 5,465 | ​ | $ | 4,918
Schedule of lease costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended September 30, 2019 | ​ | Nine months ended September 30, 2019
Finance leases: | ​ | ​ | ​ | ​ | ​ | ​
Amortization of ROU assets | ​ | $ | 353 | ​ | $ | 829
Interest expense | ​ | ​ | 156 | ​ | ​ | 444
Total | ​ | $ | 509 | ​ | $ | 1,273
​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease: | ​ | ​ | ​ | ​ | ​ | ​
Rent expense | ​ | $ | 49 | ​ | $ | 145
Schedule of undiscounted lease payment obligations, operating lease | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Payments due by period
​ |  | 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | Thereafter |  | Total
Operating lease obligation | ​ | $ | 56 | ​ | $ | 226 | ​ | $ | 230 | ​ | $ | 232 | ​ | $ | 237 | ​ | $ | 158 | ​ | $ | 1,139
Finance lease obligations | ​ |  | 579 | ​ |  | 2,318 | ​ |  | 2,362 | ​ |  | 2,058 | ​ |  | 105 | ​ |  | — | ​ | ​ | 7,422
Total future minimum lease payments | ​ | $ | 635 | ​ | $ | 2,544 | ​ | $ | 2,592 | ​ | $ | 2,290 | ​ | $ | 342 | ​ | $ | 158 | ​ | $ | 8,561
Less: Imputed interest | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (1,051)
Total | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 7,510

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- Definition Tabular disclosure of lease liabilities. + References No definition available. + Details
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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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