Note 6 - Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)	3 Months Ended	6 Months Ended
Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Net Income (Loss) Attributable to Parent, Total	$ (556,920)	$ (538,508)	$ (922,268)	$ (1,374,364)	$ (1,095,428)	$ (2,296,632)
Basic weighted average outstanding shares of common stock (in shares)	22,913,023		19,376,278		22,738,806	19,371,082
Dilutive effects of common share equivalents (in shares)	0		0
Dilutive weighted average outstanding shares of common stock (in shares)	22,913,023		19,376,278		22,738,806	19,371,082
Basic and diluted loss per common share (in dollars per share)	$ (0.02)		$ (0.05)		$ (0.05)	$ (0.12)

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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

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