Note 3 - Going Concern Uncertainty (Details Textual) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Cash and Cash Equivalents, at Carrying Value, Ending Balance	$ 0						$ 0		$ 0
Retained Earnings (Accumulated Deficit), Ending Balance	(316,851)						(316,851)		$ (300,383)
Net Income (Loss) Attributable to Parent, Total	$ (4,340)	$ (4,338)	$ (7,790)	$ (4,340)	$ (4,340)	$ (7,790)	$ (16,468)	$ (16,470)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References + Details

MADISON AVE HOLDINGS INC 10-Q