SHARE CAPITAL (Narrative) (Details)
$ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions |
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1 Months Ended |
4 Months Ended |
5 Months Ended |
7 Months Ended |
12 Months Ended |
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May 02, 2021
shares
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Mar. 23, 2021 |
Apr. 21, 2020
USD ($)
$ / shares
shares
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Sep. 30, 2020
USD ($)
$ / shares
shares
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Jul. 20, 2021
USD ($)
$ / shares
shares
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Dec. 31, 2021
USD ($)
$ / shares
shares
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Dec. 31, 2021
USD ($)
Share
shares
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Dec. 31, 2020
USD ($)
$ / shares
shares
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Dec. 31, 2020
USD ($)
shares
$ / shares
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Dec. 31, 2019
USD ($)
$ / shares
shares
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Oct. 01, 2020
USD ($)
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May 14, 2020
USD ($)
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Apr. 30, 2020
CAD ($)
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Jun. 13, 2018
USD ($)
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Apr. 30, 2018
CAD ($)
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| Disclosure of classes of share capital [line items] |
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| Short form base shelf prospectus |
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$ 150
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$ 150
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| Aggregate offering value under ATM equity facility |
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$ 60,000
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$ 23,000
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$ 35,700
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| Public equity offerings, net of issuance costs (shares) | shares |
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2,164,119
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11,640,411
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10,060,398
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13,804,530
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10,717,126
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| Equity issuance, price per share | $ / shares |
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$ 1.56
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$ 1.98
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$ 5.96
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$ 1.91
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$ 2.20
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| Proceeds from issuing shares |
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$ 3,367
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$ 23,000
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$ 59,998
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$ 26,367
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$ 23,557
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| Payments of commission |
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76
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564
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1,230
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640
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530
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| Additional transaction costs |
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$ 147
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$ 374
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$ 379
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521
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$ 484
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| Deferred financing costs |
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$ 0
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$ 0
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$ 294
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$ 294
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| Maximum percentage of ownership of issued and outstanding shares for stock option plan |
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5.00%
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5.00%
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7.00%
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7.00%
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| Maximum percentage of ownership of issued and outstanding shares for share units plan |
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1.50%
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| Weighted average share price | $ / shares |
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$ 7.51
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$ 5.56
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| Number of share options exercised in share-based payment arrangement | shares |
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2,801,600
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2,452,000
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| Weighted average exercise price of share options exercised in share-based payment arrangement | $ / shares |
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$ 3.76
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$ 3.71
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| Share-based compensation expense |
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$ 1,973
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$ 1,787
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| Unvested share option expense not yet recognized |
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$ 472
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$ 472
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$ 478
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$ 478
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| Performance share units granted | shares |
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322,000
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882,000
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| Performance share units settled for shares | shares |
388,000
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388,000
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0
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| Settlement of performance share units (shares) | shares |
379,340
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| Share based compensation expense related to performance share units |
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$ 1,663
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$ 1,216
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| Expense (recovery) on directors compensation related to deferred share units |
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$ (707)
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$ 4,251
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| Deferred share units outstanding | shares |
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1,348,765
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1,348,765
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1,266,199
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1,266,199
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889,385
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| Deferred share units outstanding, fair market value |
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$ 5,682
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$ 5,682
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$ 6,389
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$ 6,389
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| Expense (recovery) related to share appreciation rights |
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$ 113
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$ (47)
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| Share appreciation rights, outstanding | shares |
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113,670
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113,670
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0
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0
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312,000
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| Share appreciation rights outstanding, fair market value |
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$ 113
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$ 113
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| Description of instruments with potential future dilutive effect not included in calculation of diluted earnings per share |
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As of December 31, 2021, there are 2,113,049 anti-dilutive stock options (December 31, 2020 - 4,645,184 stock options).
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| Minimum [Member] |
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| Disclosure of classes of share capital [line items] |
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| Percentage of performance payout multiplier |
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0.00%
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| Maximum [Member] |
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| Disclosure of classes of share capital [line items] |
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| Percentage of performance payout multiplier |
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200.00%
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| March 3, 2022 [Member] |
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| Disclosure of classes of share capital [line items] |
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| Performance share units vested | shares |
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535,000
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| March 1, 2023 [Member] |
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| Disclosure of classes of share capital [line items] |
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| Performance share units vested | shares |
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806,000
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| March 4, 2024 [Member] |
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| Disclosure of classes of share capital [line items] |
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| Performance share units vested | shares |
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298,000
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| Events After Reporting Period [Member] |
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| Disclosure of classes of share capital [line items] |
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| Weighted average share price | $ / shares |
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$ 2.40
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| Shares issued on the exercise of options | shares |
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64,200
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| Number of share options exercised in share-based payment arrangement | Share |
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64,200
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| Weighted average exercise price of share options exercised in share-based payment arrangement | $ / shares |
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$ 5.31
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