XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.22.1

CONVERTIBLE PREFERRED STOCK (Detail) - $ / shares |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Jul. 16, 2020 | Jul. 16, 2019 | Mar. 31, 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 |

X
- Definition Temporary equity dividend rate percentage. + References No definition available. + Details
Name: | crk_TemporaryEquityDividendRatePercentage
Namespace Prefix: | crk_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Temporary equity stock conversion price. + References No definition available. + Details
Name: | crk_TemporaryEquityStockConversionPrice
Namespace Prefix: | crk_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Temporary equity stock issued during period shares new issues. + References No definition available. + Details
Name: | crk_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | crk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TemporaryEquityDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration