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Share Capital (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block] |
| SAR Awards
| Shares |  | Weighted Average Grant Date Fair Value |  | Weighted Average Exercise Price
Balance at December 31, 2017 | 327,500 |  |  | $ | 2.35 |  |  | $ | 6.60 |
Granted | — |  |  | — |  |  | — |
Vested | — |  |  | — |  |  | — |
Forfeited | (76,700 | ) |  | 2.35 |  |  | 6.60 |
Exercised | — |  |  | — |  |  | — |
Balance at December 31, 2018 | 250,800 |  |  | $ | 2.35 |  |  | $ | 6.60 |
Schedule of Share-based Compensation, Performance Shares and Time Based Award Activity |  | The following table summarizes information about financial performance based and time based restricted stock and restricted stock unit awards:
| Performance Based Awards |  | Time Based Awards
| Shares |  | Weighted Average Grant Date Fair Value |  | Shares |  | Weighted Average Grant Date Fair Value
Balance at December 31, 2017 | — |  |  | $ | — |  |  | 785,085 |  |  | $ | 11.94 |
Granted | 503,321 |  |  | 9.17 |  |  | 156,440 |  |  | 7.38 |
Vested | (4,444 | ) |  | 10.30 |  |  | (239,085 | ) |  | 14.99 |
Forfeited | (45,965 | ) |  | 9.29 |  |  | (75,500 | ) |  | 9.75 |
Balance at December 31, 2018 | 452,912 |  |  | $ | 9.15 |  |  | 626,940 |  |  | $ | 9.83 |
Schedule of Share-based Compensation, Stock Options, Activity |  | share option awards:
| Share Option Awards
| Shares |  | Weighted Average Grant Date Fair Value |  | Weighted Average Exercise Price
Balance at December 31, 2017 | — |  |  | $ | — |  |  | $ | — |
Granted | 111,866 |  |  | 2.23 |  |  | 4.85 |
Vested | — |  |  | — |  |  | — |
Forfeited | — |  |  | — |  |  | — |
Exercised | — |  |  | — |  |  | — |
Balance at December 31, 2018 | 111,866 |  |  | $ | 2.23 |  |  | $ | 4.85 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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