Promissory Note (Narrative) (Details) - Glencore [Member] - Promissory Note [Member] $ in Millions	Aug. 07, 2019 USD ($)
Disclosure of detailed information about borrowings [line items]
Principal secured debentures amount	$ 15
Borrowings, interest rate basis	LIBOR plus 6.0%

The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2021-01-01
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+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of loans received from banks that have been secured by collateral. [Refer: Loans received]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2021-01-01
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-URIDate 2021-03-24

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- Details

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- Details

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