Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 6 - Stock-based Compensation (Details Textual)

v3.23.1

Note 6 - Stock-based Compensation (Details Textual) - USD ($)		3 Months Ended		6 Months Ended
	Jun. 18, 2013	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Oct. 01, 2022	Sep. 30, 2022	Sep. 30, 2021
Common Stock, Shares Authorized		12,000,000		12,000,000			4,000,000
Research and Development Expense [Member]
Share-Based Payment Arrangement, Expense		$ 34,000	$ 41,000	$ 48,000	$ 94,000
General and Administrative Expense [Member]
Share-Based Payment Arrangement, Expense		34,000	104,000	122,000	193,000
Employees Directors And Consultants [Member]
Share-Based Payment Arrangement, Expense		68,000	145,000	170,000	287,000
Non Employee Restricted Shares [Member]
Share-Based Payment Arrangement, Expense		$ 1,000	$ 10,000	$ 3,000	$ 20,000
The 2013 Plan [Member]
Common Stock, Shares Authorized						185,571		170,571
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized	15,000
Share-based Payment Arrangement, Annual Increase in Authorized Shares, Maximum Percentage of Common Stock Outstanding	4.00%
Increase In Aggregate Number Of Shares						15,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		50,667		50,667
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 245,000		$ 245,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 4 months 24 days
The 2013 Plan [Member] \| Restricted Stock [Member] \| Board Of Directors And Management [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)				20,875
The 2013 Plan [Member] \| Restricted Stock [Member] \| Consultants [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Other (in shares)				3,625

- Definition

The amount of increase, in aggregate, of the number of shares.

+ References

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Net number of non-option equity instruments granted to participants.

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