Note 4 - Income Taxes - Reconciliation of Income Taxes (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Tax benefit at effective rate	$ 202,000	$ 128,000
Change in valuation allowance	(202,000)	(128,000)
Provision for income taxes

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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