Note 11 - Stockholders' Equity (Details Textual) - USD ($)							1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 26, 2025	Jul. 01, 2025	May 13, 2025	Mar. 13, 2025	Feb. 18, 2025	Jul. 25, 2024	May 31, 2024	Sep. 30, 2025	Jun. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Jul. 19, 2025	Jul. 18, 2025	Jun. 02, 2025	May 31, 2025	Apr. 18, 2025	Dec. 31, 2024	May 03, 2024
Common Stock, Par or Stated Value Per Share								$ 0.01		$ 0.01							$ 0.01
Proceeds from Issuance of Common Stock										$ 4,609,409	$ 4,960,562
Payments of Stock Issuance Costs								$ 38,000		$ 240,878	$ 870,960
Renovaro Acquisition [Member]
Shares Issued, Price Per Share				$ 16.05
Stock Issued During Period, Shares, Acquisitions				31,153
Stock Issued During Period, Value, Acquisitions				$ 500,000
Registered Direct Offering, Placement Agent Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)					1,698
Warrants and Rights Outstanding, Term					5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights, Percent of Stock Price					125.00%
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 28.13
The February 2021, June 2021, and May 2022 Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						63,874
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 210
Payments of Stock Issuance Costs						$ 594,033
Class of Warrant or Right, Exercised During Period, Exercise Price						$ 19.8
Proceeds from Warrant Exercises						$ 1,265,000
Series A Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						63,874
Warrants and Rights Outstanding, Term						5 years
Series B Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						63,874
Warrants and Rights Outstanding, Term						18 months
Series A and Series B Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 16.05
Placement Agent Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						4,473
Warrants and Rights Outstanding, Term						5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 24.75
Warrants or Rights, Commissions, Percent						7.00%
Warrants or Rights, Management Fee, Percent						1.00%
Warrants or Rights, Issuance Expenses						$ 35,000
Warrants or Rights, Clearing Fees						$ 15,950
Warrants or Rights, Placement Agent Fee, Percent						7.00%
Stock Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights								$ 193.22		$ 193.22							$ 133.8
Class of Warrant or Right, Exercised During Period, Exercise Price										$ 16.05
Proceeds from Warrant Exercises										$ 1,606,000
Class of Warrant or Right, Exercised During Period (in shares)										100,059
February 18, 2025 Offering [Member]
Stock Issued During Period, Shares, New Issues					24,223
Common Stock, Par or Stated Value Per Share					$ 0.01
Shares Issued, Price Per Share					$ 22.5
Proceeds from Issuance of Common Stock					$ 545,000
Sale of Stock, Agent Placement Fee, Percent of Gross Proceeds					700.00%
Sale of Stock, Management Fee, Percent of Gross Proceeds					1.00%
Professional Fees					$ 15,000
Sale of Stock, Placement Agent, Warrants Assigned, Number of Securities Called by Warrants, Percent of Shares Sold					7.00%
May 2025 Private Placement [Member]
Stock Issued During Period, Shares, New Issues			18,692
Shares Issued, Price Per Share			$ 16.05
Stock Issued During Period, Value, New Issues			$ 300,000						$ 300,000
Sales Agreement [Member]
Stock Issued During Period, Shares, New Issues							107,140	78,356		97,343
Proceeds from Issuance of Common Stock							$ 3,696,000
Sale of Stock, Commissions, Percent																		3.00%
Sale of Stock, Maximum Amount														$ 3,398,000				$ 3,696,000
Net Proceeds from Issuance of Common Stock							$ 3,122,000	$ 921,000		$ 1,084,000
Sale of Stock, Additional Amount																$ 1,491,000
Sale of Stock, Remaining Available Balance								$ 2,292,000		2,292,000					$ 1,352,000
Payments of Stock Issuance Costs										$ 161,000
Standby Equity Purchase Agreement [Member]
Stock Issued During Period, Shares, New Issues		8,033
Sale of Stock, Maximum Amount		$ 10,000,000
Sale of Stock, Discount Rate		4.00%
Sale of Stock, Maximum Shares													128,114
Percent of Outstanding Common Stock												19.99%
Sale of Stock, Beneficial Ownership Voting Power												4.99%
August 26, 2025 Offering [Member]
Stock Issued During Period, Shares, New Issues	36,237
Shares Issued, Price Per Share	$ 11.4
Proceeds from Issuance of Common Stock	$ 413,093