Note 4 - Borrowings - Schedule of Debt (Details) - Loan Agreement [Member] - CRG [Member] $ in Thousands	Jun. 30, 2022 USD ($)
2022 (remaining six months of the year)	$ 0
2023	0
2024	9,045
2025	10,339
Long-Term Debt, Total	19,384
Less: Amount of PIK additions and final facility fee to be incurred subsequent to June 30, 2022	(5,906)
Less: Amount representing debt issuance costs	(291)
Borrowings, long term portion, as of June 30, 2022	$ 13,187

Cumulative paid-in-kind interest treated as additional principal and added to the total carrying amount of the debt.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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