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CONVERTIBLE PREFERRED STOCK (Detail) - $ / shares |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Jul. 16, 2020 | Jul. 16, 2019 | Sep. 30, 2022 | May 19, 2020
Temporary Equity Disclosure [Abstract] |  |  |  |
Convertible preferred stock issued/ sold (in shares) |  | 175,000 |  |
Preferred stock, quarterly dividends rate |  |  |  | 10.00%
Conversion price per share (in dollars per share) | $ 4.00 |  | $ 4.00 |

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- Definition Temporary equity dividend rate percentage. + References No definition available. + Details
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Balance Type: | na
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- Definition Temporary equity stock conversion price. + References No definition available. + Details
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Namespace Prefix: | crk_
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Balance Type: | na
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- Definition Temporary equity stock issued during period shares new issues. + References No definition available. + Details
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Namespace Prefix: | crk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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