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Note 8 - Debt Obligations (Details Textual) - USD ($)				3 Months Ended
Note 8 - Debt Obligations (Details Textual) - USD ($)	Mar. 11, 2025	Feb. 03, 2025	Jan. 13, 2025	Mar. 31, 2025	Mar. 31, 2024	Jan. 10, 2025	Dec. 31, 2024
Proceeds from Issuance of Debt				$ 10,000,000	$ 2,000,000
Stock Issued During Period, Value, New Issues					$ 1,463,710
Kips Bay Agreement 2025 [Member]
Stock Issued During Period, Shares, New Issues (in shares)				110,059
Stock Issued During Period, Value, New Issues				$ 531,915
Kips Bay Agreement 2025 [Member] \| Restricted Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)				44,024
Kips Bay Agreement 2025 [Member] \| Registered Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)				66,035
Conversion of the Alvin Fund 2022 Note into Common Shares [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)				19,816	16,453
Debt Conversion, Converted Instrument, Amount				$ 78,904	$ 79,781
Conversion of Accrued Interest on Alvin Fund 2023 Note Into Common Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)				15,550	7,508
Debt Conversion, Converted Instrument, Amount				$ 63,518	$ 36,822
Conversion of Kips Bay Note 2025 to Common Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)				1,490,624
Debt Conversion, Converted Instrument, Amount				$ 4,001,243
Debt Instrument, Convertible, Conversion Price (in dollars per share)				$ 2.68
Conversion of Kips Bay Note 2025 to Common Stock [Member] \| Registered Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)		66,035
Debt Conversion, Converted Instrument, Amount		$ 319,149
GHF 2021 Note [Member]
Debt Instrument, Interest Rate, Stated Percentage				12.00%			12.00%
GHF 2021 Note [Member] \| Unsecured Debt [Member]
Interest Expense, Debt				$ 126,937	158,447
Amortization of Debt Discount (Premium)				0	94,273
Alvin Fund 2022 Note [Member]
Interest Expense, Debt				$ 78,904	79,781
Debt Instrument, Interest Rate, Stated Percentage				16.00%			16.00%
Alvin Fund 2023 Note [Member]
Interest Expense, Debt				$ 62,138	93,002
Amortization of Debt Discount (Premium)				$ 0	51,117
Debt Instrument, Interest Rate, Stated Percentage				12.00%			12.00%
Kips Bay 2025 Note [Member]
Interest Expense, Debt				$ 274,884
Amortization of Debt Discount (Premium)				211,891
Debt Instrument, Face Amount						$ 10,638,298
Proceeds from Issuance of Debt	$ 5,000,000		$ 5,000,000
Debt Instrument, Unamortized Discount			319,149
Debt Instrument, Interest Rate, Stated Percentage						6.00%
Embedded Derivative, Fair Value of Embedded Derivative, Net				1,920,000
Kips Bay 2025 Note Tranche Two [Member]
Debt Instrument, Face Amount	5,319,149
Proceeds from Issuance of Debt	5,000,000
Debt Instrument, Unamortized Discount	$ 220,000		$ 319,149
Aqua Metals Note Payable [Member]
Interest Expense, Debt				$ 2,407	$ 13,388
Debt Instrument, Interest Rate, Stated Percentage				9.76%			9.76%