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Note 13 - Stockholders' Equity (Details Textual) - USD ($)									9 Months Ended	12 Months Ended
	Dec. 30, 2022	Nov. 29, 2022	Aug. 25, 2022	Jun. 23, 2022	May 19, 2022	May 17, 2022	Jan. 03, 2022	Aug. 17, 2021	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2013	Apr. 08, 2021	Dec. 31, 2020
Common Stock, Shares Authorized (in shares)										100,000,000	100,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)						$ 0.001				$ 0.001	$ 0.001		$ 0.001
Common Stock, Shares, Issued (in shares)										43,986,079	21,285,706
Preferred Stock, Shares Authorized (in shares)										2,500,000	2,500,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)										$ 0.001	$ 0.001
Preferred Stock, Shares Issued (in shares)										0	0
Proceeds from Issuance or Sale of Equity, Total					$ 26,450,000
Class of Warrant or Right, Outstanding (in shares)										35,920,000	1,015,000			515,000
Stock Issued During Period, Value, New Issues										$ 24,453,528
Payments of Stock Issuance Costs					$ 1,996,469
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total (in shares)	80,000	9,208	8,333
Class of Warrant or Right, Issued by Exchange, Shares (in shares)								500,000		0	500,000
Shares Issued, Price Per Share (in dollars per share)										$ 0.50
Class of Warrant or Right, Issued During Period (in shares)										34,905,000	0
Common Stock, Shares, Outstanding, Ending Balance (in shares)										43,986,079	21,285,706
Preferred Stock, Shares Outstanding, Ending Balance (in shares)										0	0
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)									2,408,892	1,387,347	149,636
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									2,574,871
Share-Based Payment Arrangement, Expense										$ 934,423	$ 481,105
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount										$ 639,129
Restricted Stock Units (RSUs) [Member] \| The 2022 Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)										1,021,545
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)										1,021,545
Prefunded Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)						30,425,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)								$ 0.001
Warrant Purchase Agreement [Member]
Proceeds from Issuance or Sale of Equity, Total						$ 15,182,075
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 0.499
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						30,425,000
Private Placement Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 0.65
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)				4,250,000
Public Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)						15,635,850
Proceeds from Issuance or Sale of Equity, Total						$ 23,000,000
Shares Issued, Price Per Share (in dollars per share)						$ 0.50
Over-Allotment Option [Member]
Stock Issued During Period, Shares, New Issues (in shares)					6,900,000
Stock Issued During Period, Value, New Issues					$ 3,450,000
Private Placement [Member]
Proceeds from Issuance of Debt				$ 6,000,000
Placement Agent Warrants [Member]
Class of Warrant or Right, Issued During Period (in shares)				230,000
Director [Member]
Stock Issued During Period, Shares, Issued for Services (in shares)							18,641
Director [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)												25,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)												3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Annual Grant												$ 36,750
Management [Member]
Stock Issued During Period, Shares, Issued for Services (in shares)							48,341
Management [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)									625,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)									3 years
Board of Directors Chairman [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Annual Grant												$ 73,500
Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued (in shares)										0	0
Preferred Stock, Shares Outstanding, Ending Balance (in shares)										0	0