Note 10 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Expense (Benefit)	$ 0	$ 0
Tax Credit Carryforward, Valuation Allowance	57,446,259
Unrecognized Tax Benefits	0
Domestic Tax Authority [Member]
Change in Operating Loss Carryforwards	237,816,096
Change in Deferred Tax Assets Attributable to Operating Losses	49,941,380
Operating Loss Carryforwards	86,840,808	316,548,085
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	43,354,286	254,897,407
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	43,486,522	60,829,929
Operating Loss Carryforwards, Valuation Allowance	20,558,729	66,733,005
State and Local Jurisdiction [Member]
Change in Operating Loss Carryforwards	178,311,455
Change in Deferred Tax Assets Attributable to Operating Losses	7,344,800
Operating Loss Carryforwards	59,425,348	232,097,127
Operating Loss Carryforwards, Valuation Allowance	$ 3,979,630	$ 14,190,055