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Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2024	Oct. 31, 2023	Sep. 30, 2022	Nov. 30, 2021	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss					$ 185		$ 185		$ 129
Inventory Valuation Reserves					72		72		76
Payments to Acquire Intangible Assets							1,868	$ (0)
Finite-Lived Intangible Assets, Accumulated Amortization					1,772		1,772
Amortization of Intangible Assets					267		487
Impairment, Long-Lived Asset, Held-for-Use							0	0
Finance Lease, Liability					0		0		0
Medicaid Liability					7,142		$ 7,142		$ 3,627
Percentage for Valuation Reserve Against Deferred Tax Assets							100.00%		100.00%
Income Tax Expense (Benefit)					54	$ 0	$ 54	$ 0
Effective Income Tax Rate Reconciliation, Percent							1.80%	0.00%
Unrecognized Tax Benefits					0		$ 0		$ 0
Income Tax Examination, Penalties and Interest Accrued					$ 0		0
Income Tax Examination, Penalties and Interest Expense							$ 0		$ 0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)					6,636,723	4,887,018	6,284,721	4,887,018
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | AnovoRx [Member]
Concentration Risk, Percentage							95.90%	63.50%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | AnovoRx [Member]
Concentration Risk, Percentage							96.20%		97.40%
Carglumic Acid Product Rights [Member]
Payments to Acquire Intangible Assets				$ 3,250
Finite-Lived Intangible Asset, Useful Life (Year)				10 years
Betaine Anhydrous Product Rights [Member]
Payments to Acquire Intangible Assets			$ 2,125
Finite-Lived Intangible Asset, Useful Life (Year)			5 years
Nitisinone Product Rights [Member]
Payments to Acquire Intangible Assets		$ 650
Finite-Lived Intangible Asset, Useful Life (Year)		5 years
PKU GoLike [Member]
Payments to Acquire Intangible Assets	$ 1,868
Finite-Lived Intangible Asset, Useful Life (Year)	10 years
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)					3 years		3 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life (Year)					5 years		5 years

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