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Stockholders’ Equity (Deficit) (Details) - Schedule of stock-based compensation expense - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Stockholders’ Equity (Deficit) (Details) - Schedule of stock-based compensation expense [Line Items] |  |
Selling, general and administrative | $ 5,487 | $ 2,892
Selling, general and administrative [Member] |  |
Stockholders’ Equity (Deficit) (Details) - Schedule of stock-based compensation expense [Line Items] |  |
Selling, general and administrative | $ 5,487 | $ 2,892

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References No definition available. + Details
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Namespace Prefix: | cidm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | cidm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |