Note 11 - Debt (Details Textual) - USD ($)			12 Months Ended
	Nov. 07, 2024	Nov. 08, 2023	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Feb. 17, 2023
Common Stock, Par or Stated Value Per Share (in dollars per share)						$ 0.001	$ 0.001
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]						Secured Overnight Financing Rate (SOFR) [Member]
Midcap Financial Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 3.4
Warrants and Rights Outstanding, Term (Year)						10 years
Perceptive Warrants [Member] | Perceptive Credit Agreement [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						1,250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 2.43
Warrants and Rights Outstanding, Term (Year)						10 years
Secured Debt [Member]
Amortization of Debt Issuance Costs						$ 516,000	$ 214,000
Amortization of Debt Issuance Costs and Discounts						$ 641,000	$ 331,000
Line of Credit [Member] | Perceptive Credit Agreement [Member]
Debt Instrument, Interest Rate Floor, Percent						5.00%
Debt Instrument, Basis Spread on Variable Rate						7.00%
Line of Credit Facility, Interest Rate at Period End						12.00%
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year One						$ 34,400,000
Debt Instrument, Minimum Cash Balance	$ 3,000,000
Line of Credit [Member] | Perceptive Credit Agreement [Member] | Forecast [Member]
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Two					$ 37,000,000
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Three				$ 52,400,000
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Four			$ 60,300,000
Debt Instrument, Maximum Operating Expense Covenant				$ 45,000,000	$ 40,000,000
MidCap Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 35,000,000
MidCap Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument, Face Amount								25,000,000
Debt Issuance Costs, Gross								1,600,000
Repayments of Lines of Credit		$ 11,000,000
MidCap Credit Agreement First Tranche [Member] | Secured Debt [Member]
Debt Instrument, Face Amount								10,000,000
MidCap Credit Agreement Second Tranche [Member] | Secured Debt [Member]
Debt Instrument, Face Amount								5,000,000
MidCap Credit Agreement Third Tranche [Member] | Secured Debt [Member]
Debt Instrument, Face Amount								10,000,000
Revolving Credit Facility [Member] | Secured Debt [Member]
Debt Instrument, Face Amount								$ 10,000,000
Perceptive Credit Agreement [Member] | Secured Debt [Member]
Line of Credit Facility, Maximum Borrowing Capacity		45,000,000
Debt Instrument, Face Amount		37,500,000
Prepayment Penalties and Exit Fees		1,000,000
Transaction Fees and Other Expenses		$ 2,700,000
Facility Payable Fee, Percent		2.00%
Debt Instrument, Interest Rate, Effective Percentage						14.70%
Interest Only Period (Month)						48 months
Outstanding Loan Payments, Percent						3.00%
Debt Instrument, Covenant, Prepayment Fee Percentage, Year One						10.00%
Debt Instrument, Covenant, Prepayment Fee Percentage, Year Two						9.00%
Debt Instrument, Covenant, Prepayment Fee Percentage, Year Three						6.00%
Debt Instrument, Covenant, Prepayment Fee Percentage, Year Four						4.00%
Debt Instrument, Covenant, Prepayment Fee Percentage, Thereafter						2.00%
Debt Instrument, Minimum Cash Balance	$ 3,000,000
Debt Instrument, Interest Rate In Event of Default						3.00%
Perceptive Credit Agreement [Member] | Secured Debt [Member] | Perceptive [Member]
Stock Issued During Period, Shares, New Issues (in shares)	150,000
Perceptive Credit Agreement Delayed Draw Loan Member | Secured Debt [Member]
Debt Instrument, Face Amount		$ 7,500,000
Debt Issuance Costs, Gross						$ 1,500,000
Payment of Lender Fees						$ 11,000
Perceptive Credit Agreement Delayed Draw Loan Member | Secured Debt [Member] | Perceptive [Member]
Stock Issued During Period, Shares, New Issues (in shares)						150,000