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Equity - Stock Options - Non-vested (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Equity |  |
Non-vested stock options at January 1 (in shares) | 292,315 | 238,871
Granted (in shares) | 1,328,718 | 224,000
Vested, Options (in shares) | (902,268) | (122,647)
Forfeited/Expired/Exchanged, Options (in shares) | (48,780) | (47,909)
Non-vested stock options at December 31 (in shares) | 669,985 | 292,315
Non-vested stock options - Weighted Average Grant Date Fair Value (in dollars per share) | $ 2.61 | $ 4.27
Granted - Weighted Average Grant Date Fair Value (in dollars per share) | 1.32 | 1.94
Vested - Weighted Average Grant Date Fair Value (in dollars per share) | 1.40 | 4.15
Forfeited/Expired/Exchanged - Weighted Average Grant Date Fair Value (in dollars per share) | 2.14 | 3.82
Non-vested stock options - Weighted Average Grant Date Fair Value (in dollars per share) | $ 1.71 | $ 2.61
Stock options, Intrinsic value of outstanding shares | $ 0 |

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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of non-vested options forfeited. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of options vested. + References No definition available. + Details
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