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Note 7 - Leases (Details Textual)	1 Months Ended
	Sep. 30, 2022	Feb. 28, 2022	Sep. 30, 2021	Mar. 31, 2024	Dec. 31, 2023
Number of Real Estate Leases				3
Operating Lease, Weighted Average Discount Rate, Percent				9.60%	9.60%
Operating Lease, Weighted Average Remaining Lease Term (Year)				6 years 1 month 6 days	6 years 4 months 24 days
Finance Lease, Weighted Average Discount Rate, Percent				11.00%	11.00%
Finance Lease, Weighted Average Remaining Lease Term (Year)				1 month 6 days	4 months 24 days
Lease for Laboratory Space [Member]
Lessee, Operating Lease, Term of Contract (Year)		7 years	10 years
Lessee, Operating Lease, Option To Extend Period (Year)	5 years	10 years	10 years
Lessee, Operating Lease, Renewal Term (Year)	7 years

X

- Definition

Represents option to extend period for lessee operating lease.

+ References

No definition available.

+ Details

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X

- Definition

Represents number of real estate lease.

+ References

No definition available.

+ Details

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X

- Definition

Weighted average discount rate for finance lease calculated at point in time.

+ References

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-Topic 842
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-Section 55
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-Publisher FASB
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X

- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Topic 842
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-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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X

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Topic 842
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-Section 50
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-Publisher FASB
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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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