Note 8 - Shareholders' Equity (Details Textual) - USD ($)							1 Months Ended		3 Months Ended
	Feb. 13, 2024	Jan. 11, 2024	Sep. 02, 2023	Apr. 24, 2023	Mar. 02, 2023	Oct. 16, 2019	Dec. 31, 2022	Oct. 31, 2019	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Preferred Stock, Shares Authorized (in shares)									50,000,000		50,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)									$ 0.001		$ 0.001
Preferred Stock, Shares Issued (in shares)									5,000,000		5,000,000
Payments of Dividends									$ 1,000,501	$ 1,000,502
Common Stock, Shares Authorized (in shares)									150,000,000		150,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)									$ 0.001		$ 0.001
Common Stock, Shares, Issued (in shares)									2,961,056		2,960,573
Stock Issued During Period, Value, New Issues									$ 0	$ 0
Stock Issued During Period, Shares, Reverse Stock Splits (in shares)				39,455
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)									0
Preferred Stock, Shares Outstanding (in shares)									5,000,000		5,000,000
Common Stock, Shares, Outstanding (in shares)									2,961,056		2,960,573
Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)							100,000
Share-Based Payment Arrangement, Employee [Member] | Vesting Annually Over Three Years [Member]
Share-Based Payment Arrangement, Expense							$ 13,150
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)							75,000
Share-Based Payment Arrangement, Employee [Member] | Vest Upon Achieving Certain Revenue Performance [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)							25,000
Share-Based Payment Arrangement, Employee [Member] | Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)							50,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)							25,000
Share-Based Payment Arrangement, Expense							$ 6,250
Share-Based Payment Arrangement, Employee [Member] | Restricted Stock Units (RSUs) [Member] | Vest Based on Certain Performance Hurdles Prior to December 2024 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)							25,000
Share-Based Payment Arrangement, Employee [Member] | Share-Based Payment Arrangement, Option [Member] | Vesting Annually Over Three Years [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share)							$ 0.25			$ 0.25
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)							5 years
Keystone [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)	180,955	64,218
Stock Issued During Period, Value, New Issues		$ 50,000
Shares Issued, Price Per Share (in dollars per share)		$ 0.7786
Series A Cumulative Convertible Preferred Stock [Member]
Preferred Stock, Shares Authorized (in shares)								5,000,000
Preferred Stock, Dividend Rate, Percentage						8.00%		8.00%	8.00%
Preferred Stock, Shares Issued (in shares)									5,000,000			5,000,000
Preferred Stock, Shares Outstanding (in shares)									5,000,000			5,000,000
Commitment Shares [Member] | Keystone [Member]
Purchase Commitment, Maximum Shares Commitment (in shares)					281,934
Stock Issued During Period, Shares, New Issues (in shares)			6,104		2,616
Number of Shares Registered for Resale (in shares)					281,934