Financial Instruments (Fair Value Using Black-Scholes Option-Pricing Model) (Details)	Jun. 30, 2021 year $ / shares	Dec. 31, 2020 year $ / shares
Share price [Member] | Fixed-price Preemptive Rights [Member]
Derivative [Line Items]
Derivative asset, measurement input | $ / shares	10.68	8.84
Share price [Member] | Cronos Warrant [Member]
Derivative [Line Items]
Derivative asset, measurement input | $ / shares	10.68	8.84
Expected Life [Member] | Fixed-price Preemptive Rights [Member]
Derivative [Line Items]
Derivative asset, measurement input	1.24	1.05
Expected Life [Member] | Cronos Warrant [Member]
Derivative [Line Items]
Derivative asset, measurement input	1.68	2.18
Expected Volatility [Member] | Fixed-price Preemptive Rights [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.7522	0.8068
Expected Volatility [Member] | Cronos Warrant [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.7522	0.8068
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.0029	0.0013
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member] | Minimum [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.0015	0.0006
Risk Free Interest Rate [Member] | Fixed-price Preemptive Rights [Member] | Maximum [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.0085	0.0039
Risk Free Interest Rate [Member] | Cronos Warrant [Member]
Derivative [Line Items]
Derivative asset, measurement input	0.0038	0.0021
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	4.25	5