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Note 7 - Related Party Transactions (Details Textual)		1 Months Ended	3 Months Ended			9 Months Ended
	Apr. 17, 2017 USD ($)	Aug. 31, 2018 USD ($)	Sep. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 USD ($)
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			$ 38,333	$ 38,333
Option to Lease Arrangements, Number of Renewal Periods	1
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
Related Party Transaction, Expenses from Transactions with Related Party			$ 8,468			$ 25,512
Related Party Rent Expense			$ 2,250			$ 6,750

X

- Definition

Amount of the monthly rent required for operating lease.

+ References

No definition available.

+ Details

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

X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	ckx_
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Period Type:	duration

X

- 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
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-Name Accounting Standards Codification
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-Paragraph 4
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-Topic 850
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-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

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- Definition

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