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Accounting Policies, by Policy (Policies)	9 Months Ended
Accounting Policies, by Policy (Policies)	Sep. 30, 2012
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying unaudited financial statements of CKX Lands, Inc. (“Company”) have been prepared in accordance with United States generally accepted accounting principles for interim financial information. They do not include all information and footnotes required by United States generally accepted accounting principles for complete financial statements. Except as described herein, there has been no material change in the information disclosed in the notes to the financial statements included in our financial statements as of and for the year ended December 31, 2011. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included in the accompanying financial statements. Interim results are not necessarily indicative of results for a full year. These financial statements and accompanying notes should be read in conjunction with the Company’s Form 10-K for the year ended December 31, 2011 and Form 10-Q for the quarter ended September 30, 2012
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Pronouncements In 2012, we adopted Accounting Standards Update (ASU) 2011-05 which requires the presentation of the components of net income and other comprehensive income and other comprehensive income either in a single continuous statement or in two separate but consecutive statements. This update eliminates the option to present the components of other comprehensive income as part of the statement of shareholders’ equity