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Note 3 - Research and Collaboration Agreements, Sublicense Agreements, and Investments in Privately Held Companies (Details Textual) - USD ($)			3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 01, 2024	Oct. 05, 2023	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Jun. 27, 2024	Dec. 01, 2020
Revenue from Contract with Customer, Excluding Assessed Tax			$ 385,896		$ 837,159	$ 720,513	$ 1,815,211
Alphazyme [Member]
Proceeds from Sale, Maturity and Collection of Investments				$ 61,977				$ 1,300,000
Alphazyme [Member]
Ownership Percentage										1.99%
Research and Development [Member]
Revenue from Contract with Customer, Excluding Assessed Tax			385,896		793,042	720,513	1,726,976
Proliant Agreement [Member]
Initial Up Front Payment									$ 500,000
Second Payment Upon Completion Transfer									500,000
Final Payment Upon Meeting Certain Productivity Threshold									$ 500,000
Revenue from Contract with Customer, Excluding Assessed Tax			0			0
Proliant Agreement [Member] | Subsequent Event [Member]
Non-refundable Upfront Payment, Received	$ 500,000
Inzymes Agreement APS [Member]
Non-refundable Upfront Payment, Received		$ 600,000
Revenue from Contract with Customer, Excluding Assessed Tax			52,000			92,000
A Global Food Ingredient Company [Member]
Revenue from Contract with Customer, Excluding Assessed Tax			0			0
A Global Food Ingredient Company [Member] | Research and Development [Member]
Revenue from Contract with Customer, Excluding Assessed Tax					226,000		565,000
A Global Food Ingredient Company [Member] | Success Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax					65,500		65,500
Janssen Pharmaceutical Companies [Member]
Revenue from Contract with Customer, Excluding Assessed Tax			$ 0		191,000	$ 0	380,000
Deferred License Revenue					$ 44,000		$ 88,000

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+ References

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