Amount of the monthly rent required for operating lease.

No definition available.

Name:	ckx_OperatingLeaseMonthlyRent
Namespace Prefix:	ckx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of successive periods in which the Company may extend the lease agreement.

+ References

No definition available.

+ Details

Name:	ckx_OptionToLeaseArrangementsRenewalPeriod
Namespace Prefix:	ckx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

+ Details

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ckx_StreamWetlandsServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ckx_ExclusiveRightToEvaluateAndMarketLandsForBeneficialPurposesToCompensateForImpactMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ckx_StockwellMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ckx_RentExpensesForOfficeSpaceAndAssociatedServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ckx_AdministrativeAssistantAndMiscellaneousOfficesSuppliesMonthlyExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ckx_AdministrativeAssistantAndMiscellaneousOfficeSuppliesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 8 - Related Party Transactions (Details Textual)		1 Months Ended	3 Months Ended	9 Months Ended
Note 8 - Related Party Transactions (Details Textual)	Apr. 17, 2017 USD ($)	Aug. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Stream Wetlands Services [Member] \| Exclusive Right to Evaluate and Market Lands For Beneficial Purposes to Compensate for Impact [Member]
Related Party Transaction, Amounts of Transaction	$ 38,333
Option to Lease Arrangements, Number of Renewal Periods	2
Lessee, Operating Lease, Renewal Term	1 year
Stockwell [Member] \| Rent Expenses for Office Space and Associated Services [Member]
Operating Lease Monthly Rent		$ 750
Stockwell [Member] \| Administrative Assistant and Miscellaneous Offices Supplies, Monthly Expense [Member]
Operating Lease Monthly Rent		$ 2,000
Stockwell [Member] \| Administrative Assistant And Miscellaneous Office Supplies [Member]
Related Party Transaction, Expenses from Transactions with Related Party			$ 6,571	$ 6,571