Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 1,518,481	$ 1,081,188
Certificates of deposit	2,400,000	3,370,000
Accounts receivable	83,617	62,403
Prepaid expense and other assets	107,124	23,467
Total current assets	4,109,222	4,537,058
Non-current Assets:
Certificates of deposit	1,212,890	720,000
Land	7,074,846	7,075,345
Property, Plant, And Equipment, Net	9,171,340	9,161,266
Total assets	14,493,452	14,418,324
Current Liabilities:
Trade payables and accrued expenses	140,650	122,464
Income tax payable	3,085	9,993
Total current liabilities	143,735	132,457
Non-current Liabilities:
Deferred income tax payable	298,919	298,919
Total liabilities	442,654	431,376
Stockholders’ Equity:
Common stock, no par value: 3,000,000 shares authorized; 1,942,495 and 1,942,495 shares issued, respectively	59,335	59,335
Retained earnings	13,991,463	13,927,613
Total stockholders’ equity	14,050,798	13,986,948
Total liabilities and stockholders’ equity	14,493,452	14,418,324
Timber Properties [Member]
Non-current Assets:
Property, Plant, And Equipment, Net	2,083,408	2,072,368
Building and Equipment [Member]
Non-current Assets:
Property, Plant, And Equipment, Net	$ 13,086	$ 13,553

The carrying value of noncurrent assets classified as certificates of deposit.

No definition available.

Name:	ckx_CertificatesOfDepositAtCarryingValueNoncurrent
Namespace Prefix:	ckx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.