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OTHER INCOME (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Debt Instrument [Line Items] |  |  |  |
Costs incurred | $ 500 |  |  |
Other income | 3,044 | $ 463 | $ 3,981 | $ 1,510
Paycheck Protection Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount of relief secured | $ 1,900 |  | 1,900 |
Period over which paychecks protection ("PPP") program funds are fully forgiven so long eligible expenditures are incurred | 168 days |  |  |
Other income | $ 1,200 |  |  |
Canadian Emergency Wage Subsidy |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount of relief secured | $ 1,500 |  | $ 1,500 |

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