{"cik":352955,"taxonomy":"us-gaap","tag":"CommonStockParOrStatedValuePerShare","label":"Common Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of common stock.","entityName":"CKX Lands, Inc.","units":{"USD/shares":[{"end":"2010-12-31","val":0,"accn":"0001437749-11-005847","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2010-12-31","val":0,"accn":"0001437749-11-008409","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"end":"2010-12-31","val":0,"accn":"0001437749-12-002651","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-22","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0,"accn":"0001437749-11-005847","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001437749-11-008409","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0001437749-12-002651","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-22"},{"end":"2011-12-31","val":0,"accn":"0001437749-12-004864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-11"},{"end":"2011-12-31","val":0,"accn":"0001437749-12-008114","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-10"},{"end":"2011-12-31","val":0,"accn":"0001437749-12-011360","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":0,"accn":"0001437749-13-003335","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-21","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0001437749-12-004864","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0001437749-12-008114","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-10","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0001437749-12-011360","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0001437749-13-003335","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-21"},{"end":"2012-12-31","val":0,"accn":"0001437749-13-005678","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"end":"2012-12-31","val":0,"accn":"0001437749-13-010383","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":0,"accn":"0001437749-13-014401","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"end":"2012-12-31","val":0,"accn":"0001437749-14-004805","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-24","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0001437749-13-005678","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001437749-13-010383","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001437749-13-014401","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001437749-14-004805","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-24"},{"end":"2013-12-31","val":0,"accn":"0001437749-14-008814","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-13"},{"end":"2013-12-31","val":0,"accn":"0001437749-14-014554","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-07"},{"end":"2013-12-31","val":0,"accn":"0001437749-14-020149","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10"},{"end":"2013-12-31","val":0,"accn":"0001437749-15-005783","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-23","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001437749-14-008814","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-13","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001437749-14-014554","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-07","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001437749-14-020149","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0001437749-15-005783","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-23"},{"end":"2014-12-31","val":0,"accn":"0001437749-15-008501","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-30"},{"end":"2014-12-31","val":0,"accn":"0001437749-16-028545","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-29","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001437749-15-008501","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-30","frame":"CY2015Q1I"},{"end":"2015-12-31","val":0,"accn":"0001437749-16-028545","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-29"},{"end":"2015-12-31","val":0,"accn":"0001437749-16-030988","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-05"},{"end":"2015-12-31","val":0,"accn":"0001437749-16-036706","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"end":"2015-12-31","val":0,"accn":"0001437749-16-041133","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":0,"accn":"0001437749-17-005215","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001437749-16-030988","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-05","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0001437749-16-036706","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0001437749-16-041133","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0001437749-17-005215","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-24"},{"end":"2016-12-31","val":0,"accn":"0001437749-17-008046","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":0,"accn":"0001437749-17-013703","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":0,"accn":"0001437749-17-018113","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-02","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0001437749-17-008046","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0001437749-17-013703","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001437749-17-018113","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-02","frame":"CY2017Q3I"}]}}