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Financial Instruments (Fair Value Using Black-Scholes Option-Pricing Model) (Details) | Sep. 30, 2020 year | Dec. 31, 2019 year
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Share price [Member] | Fixed-price Preemptive Rights [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 6.69 | 9.97
Share price [Member] | Cronos Warrant [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 6.69 | 9.97
Expected Life [Member] | Fixed-price Preemptive Rights [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 1.18 | 1.67
Expected Life [Member] | Cronos Warrant [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 2.43 | 3.18
Expected Volatility [Member] | Fixed-price Preemptive Rights [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.8068 | 0.8161
Expected Volatility [Member] | Cronos Warrant [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.8068 | 0.8161
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.0020 | 0.0171
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member] | Minimum [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.0012 | 0.0166
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member] | Maximum [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.0036 | 0.0174
Risk Free Interest Rate [Member] | Cronos Warrant [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.0025 | 0.0169
Expected Dividend Yield [Member] | Fixed-price Preemptive Rights [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0 | 0
Expected Dividend Yield [Member] | Cronos Warrant [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0 | 0
Weighted Average Expected Term [Member] | Fixed-price Preemptive Rights [Member] | Minimum [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 0.25 | 0.25
Weighted Average Expected Term [Member] | Fixed-price Preemptive Rights [Member] | Maximum [Member] |  |
Derivative [Line Items] |  |
Derivative asset, measurement input | 5.25 | 6

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