Annual report pursuant to Section 13 and 15(d)

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Note 8 - October 2019 Registered Direct Offering (Details Textual)

v3.22.4

Note 8 - October 2019 Registered Direct Offering (Details Textual)	Feb. 17, 2021 shares	Oct. 18, 2019 USD ($) $ / shares shares	Oct. 10, 2019 USD ($)	Sep. 30, 2022 shares
Stock Issued During Period, Shares, New Issues	43,125,004
Series I Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right		1
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares		$ 0.22
October 2019 Placement Agent Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares		$ 0.21875
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		1,071,429
Warrants and Rights Outstanding, Term		5 years
Class of Series I Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				14,285,714
Proceeds from Subscribed, Unissued Common Stock and Warrants \| $			$ 2,500,000
Payments of Stock Issuance Costs \| $			$ 158,000
Class of Series I Warrant [Member] \| Minimum [Member]
Percentage of Fee on Gross Proceeds of Warrants		0.060
Class of Series I Warrant [Member] \| Maximum [Member]
Percentage of Fee on Gross Proceeds of Warrants		0.082
Placement Agent Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				1,071,429
October 2019 Registered Direct Offering [Member]
Stock Issued During Period, Shares, New Issues		14,285,714
Shares Issued, Price Per Share \| $ / shares		$ 0.175
Registered Direct Offering October 2019 [Member]
Stock Issued During Period, Shares, New Issues		14,285,714
Proceeds from Subscribed, Unissued Common Stock and Warrants \| $		$ 2,500,000
Payments of Financing Costs, Total \| $		333,000
Payments of Stock Issuance Costs \| $		$ 158,000

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