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Marketable Securities - Available-for-sale Marketable Securities in Gross Unrealized Loss Position (Details) $ in Thousands | Sep. 30, 2023 USD ($)
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Marketable Securities [Line Items] |
Estimated fair value, less than 12 months | $ 4,251
Gross unrealized holding losses, less than 12 months | (19)
Estimated fair value, more than 12 months | 0
Gross unrealized holding losses, more than 12 months | 0
Estimated fair value | 4,251
Gross unrealized holding losses | (19)
US Treasury securities [Member] |
Marketable Securities [Line Items] |
Estimated fair value, less than 12 months | 3,278
Gross unrealized holding losses, less than 12 months | (3)
Estimated fair value, more than 12 months | 0
Gross unrealized holding losses, more than 12 months | 0
Estimated fair value | 3,278
Gross unrealized holding losses | (3)
Corporate bonds and notes [Member] |
Marketable Securities [Line Items] |
Estimated fair value, less than 12 months | 973
Gross unrealized holding losses, less than 12 months | (16)
Estimated fair value, more than 12 months | 0
Gross unrealized holding losses, more than 12 months | 0
Estimated fair value | 973
Gross unrealized holding losses | $ (16)

X
- Definition The amount of accumulated unrealized loss on investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

X
- Definition The amount of investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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X
- Definition The amount of accumulated unrealized loss on investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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X
- Definition The amount of investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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Namespace Prefix: | clro_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accumulated unrealized loss on investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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X
- Definition The amount of investment in marketable security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References No definition available. + Details
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X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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X
- Details
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Period Type: |

X
- Details
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Balance Type: |
Period Type: |