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INCOME TAXES - NOLS (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating Loss Carryforwards [Line Items] |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 10,486 | $ 15,557
Canada Revenue Agency [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards | 7,900 | 7,200
State and Local Jurisdiction |  |
Operating Loss Carryforwards [Line Items] |  |
Deferred Tax Assets, Operating Loss Carryforwards | 2,600 | 3,200
Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards | 1,200 | 6,400
Operating Loss Carryforwards, Valuation Allowance | $ 4,600 | $ 4,100
Minimum | State and Local Jurisdiction |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Expiration Date | Jan. 01, 2022 |
Minimum | Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Expiration Date | Jan. 01, 2020 |
Maximum | State and Local Jurisdiction |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Expiration Date | Dec. 31, 2037 |
Maximum | Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Expiration Date | Dec. 31, 2029 |
Chilean Tax Authority [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Valuation Allowance | $ 1,200 |

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