Note 11 - Stock-based Awards (Details) - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Details
Granted	1,900,000	250,000
Stock options granted to directors	300,000
Stock options granted to directors, fair value	$ 24,000
Stock options granted to employees and directors	1,600,000
Stock options granted to employees and directors, fair value	$ 192,000
Stock Issued During Period, Value, Share-based Compensation, Gross	$ 231,000	$ 45,000