cm:Level2TextBlock: us-gaap:ShareBasedCompensationOptionAndIncentivePlansDirectorPolicy
Share-based Payment Arrangement, Director [Policy Text Block] |
us-gaap:ShareBasedCompensationOptionAndIncentivePlansDirectorPolicy |
Disclosure of accounting policy for award granted to director under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost. |
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us-gaap:ShareBasedCompensationOptionAndIncentivePlansDirectorPolicy |