Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Equity (Details Textual)

Note 11 - Equity (Details Textual)										1 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended
Note 11 - Equity (Details Textual)	Jun. 29, 2023 USD ($) shares	Jun. 27, 2023 shares	Jun. 06, 2023 shares	Jun. 01, 2023 USD ($) shares	May 22, 2023 USD ($) $ / shares shares	Apr. 26, 2023 USD ($) shares	Mar. 10, 2023 $ / shares shares	Sep. 09, 2022	Apr. 07, 2022 shares	May 25, 2023 USD ($) $ / shares shares	Jun. 30, 2023 USD ($) $ / shares shares	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2022 USD ($) shares	Dec. 31, 2022 USD ($) $ / shares shares	Jun. 16, 2023 $ / shares	May 10, 2023 shares	May 02, 2023 shares	Apr. 25, 2023 $ / shares	May 22, 2022 shares
Operating Loss Carryforwards \| $																$ 175,000,000
Share Purchase Right, Shares Issuable Per Each Right									0.001
Share Purchase Right, Ownership Percentage Threshold									4.99%
Share Purchase Right, Ownership Percentage Trigger									0.50%
Share Purchase Right, Discount Percentage									50.00%
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)														163,586	53,238
Stock Issued During Period, Value, Employee Benefit Plan \| $												$ 52,348	$ 44,720	$ 52,348	$ 44,720
Stock Issued During Period, Value, New Issues \| $											$ 1,089,000
Share Price \| $ / shares																				$ 0.25
Proceeds from Issuance of Common Stock \| $														$ 643,759	$ 0
Accrued and Unpaid Dividends \| $				$ 1,058,853
Conversion of Stock, Amount Issued \| $				$ 1,196,900
Common Stock, Par or Stated Value Per Share \| $ / shares											$ 0.001			$ 0.001		$ 0.001	$ 0.001
Bridge Note 2022 [Member]
Debt Conversion, Amount Convertible \| $	$ 1,073,600
Debt Conversion Shares Issuable	12,200,000
Mr. Scott [Member]
Dividends \| $											$ 138,045
Series J Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues					11,000
Shares Issued, Price Per Share \| $ / shares					$ 0.001
Aggregative Purchase Price of Preferred Stock \| $					$ 1,100,000
Preferred Stock, Shares Authorized											150,000			150,000		150,000					150,000
Issuance Price Divided \| $ / shares					$ 0.104
Percentage of Common Stock Outstanding					4.99%
Series G Redeemable Preferred Stock [Member]
Preferred Stock Surrender Shares				990
Accrued and Unpaid Dividends \| $				$ 68,853
Series G Preferred Stock [Member]
Preferred Stock, Shares Authorized											3,260			3,260		3,260
Dividends \| $											$ 68,853
Number of Shares Surrender											2,270			2,270
Series K Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues		83,949
Shares Issued, Price Per Share \| $ / shares											$ 0.001			$ 0.001
Preferred Stock, Shares Authorized											150,000			150,000		150,000
Number of Vote Per Share											1,000,000			1,000,000
Number of Votes Hold											1,000			1,000
Preferred Stock, Redemption Price Per Share (in dollars per share) \| $ / shares											$ 0.10			$ 0.10
Preferred Stock, Shares Redeemed											150			150
Number of Shares Benefit Owned											100			100
Conversion of Series I Preferred Stock Into Common Stock [Member]
Preferred Stock, Convertible, Shares Issuable																			6,250
Conversion of Series J preferred Stock Into Common Stock [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares)			11,969											11,969
Accrued and Unpaid Dividends Exchange for Common Stock											27,889			27,889
Conversion of Stock, Shares Issued			11,508,672
Conversion from Series I Preferred Stock To Common Stock [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares										$ 0.16
Purchase Agreement [Member]
Stock Issued During Period, Shares, New Issues										6,108,489
Proceeds from Issuance of Common Stock \| $										$ 600,126
Keystone [Member]
Purchase Agreement, Common Stock Shares Issuable																		6,567,409
Percentage of Common Stock Shares Outstanding																		19.99%
Keystone [Member] \| Purchase Agreement [Member]
Maximum Amount Shares Issuable \| $						$ 2,750,000
Stock Issuable as Consideration for Purchase Commitment						400,000
Stock Issued as Consideration for Purchase Commitment, Delivered Right Away						200,000
Stock Issued as Consideration for Purchase Commitment, Delivered When Milestone Achieved						200,000
Minimum Amount Raised Required for Shares to be Delivered \| $						$ 2,750,000
LTIP [Member]
Incentive Plan, Milestone, Percent, Step of Total Stock Award Payout								5.00%
Incentive Plan, Milestone, Percent, Regulatory Milestones								90.00%
Incentive Plan, Percent, Milestones Paid																5.00%
Stock Issued During Period, Shares, New Issues																70,500
Stock Issued During Period, Value, New Issues \| $																$ 19,740
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage								100.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares							1,339,500
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price \| $ / shares							$ 0.32
LTIP [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period							10 years