The additional authorized amount for debt instrument.

No definition available.

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The percent of principal amount required to be paid for early extinguishment of debt instrument.

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Pertains to ownership interest in the aggregate principal amount.

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The repayment fee percent for a debt instrument.

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Represents the percentage of future royalties payments that would be considered a fee for repayment of a debt instrument.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Fair value amount of debt instrument that was repurchased.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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No definition available.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of expense for inducement to convert debt instrument representing fair value of security and other consideration transferred in excess of fair value of security and other consideration issuable pursuant to conversion privilege provided in terms of existing instrument.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Note 7 - Debt (Details Textual)				3 Months Ended			6 Months Ended		48 Months Ended
Note 7 - Debt (Details Textual)	Apr. 01, 2025 USD ($) shares	Jul. 17, 2024 USD ($)	Jan. 09, 2024 USD ($) $ / shares	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2026 USD ($) TradingDays $ / shares	Jun. 30, 2025 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2025 USD ($)	Jan. 04, 2024 USD ($)	Dec. 31, 2023 USD ($)	Feb. 28, 2019 USD ($)	Jan. 31, 2013 USD ($)
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount														$ 175,000,000
Debt Instrument, Interest Rate, Stated Percentage														3.00%
Stock Repurchased During Period, Value			$ 50,000,000	$ 13,021,000	$ 18,255,000		$ 17,787,000	$ 18,255,000
Shares Acquired, Average Cost Per Share (in dollars per share) \| $ / shares			$ 0.9067				$ 1.39
Debt Instrument, Repurchase Amount													$ 28,800,000
Induced Conversion of Convertible Debt Expense							$ 0	$ 32,647,000
Debt Instrument, Redemption Price, Percentage							100.00%
Debt Conversion, Converted Instrument, Amount									$ 143,200,000
Repayments of Debt						$ 3,000,000
Long-Term Debt				$ 349,050,000			$ 349,050,000			$ 343,966,000		$ 50,600
Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate				5.50%			5.50%			5.50%
Minimum [Member]
Line of Credit Facility [Line Items]
Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate				0.90%			0.90%
Maximum [Member]
Line of Credit Facility [Line Items]
Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate				4.90%			4.90%
Affiliate Purchasers [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											5.00%
Debt Instrument, Repurchase Amount											$ 55,000,000
Interest Payable											$ 16,100,000
Note Exchange Transactions [Member]
Line of Credit Facility [Line Items]
Proceeds from Convertible Debt	$ 63,500,000
Debt Conversion, Original Debt, Amount	$ 159,200,000
Debt Conversion, Converted Instrument, Shares Issued (in shares) \| shares	121,437,998
Gain (Loss) on Extinguishment of Debt	$ 59,100,000
Induced Conversion of Convertible Debt Expense	32,600,000
Debt Instrument, Unamortized Discount, Total	54,700,000
Debt Issuance Costs, Net, Total	$ 4,400,000
2044 Royalty Financing
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount		$ 250,000,000
Debt Instrument, Basis Spread on Variable Rate		7.50%
Debt Instrument, Repayment Fee, Percent		3.00%
Debt Instrument, Early Extinguishment, Percent of Principal Amount		150.00%
Debt Instrument, Repayment Fee, Royalty Percentage		80.00%
Debt Instrument, Additional Authorized Amount		$ 50,000,000
Long-Term Debt				$ 246,854,000			$ 246,854,000			$ 246,433,000
2044 Royalty Financing \| Debt Principal Amount After July 17, 2029 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Early Extinguishment, Percent of Principal Amount		200.00%
2044 Royalty Financing \| Minimum [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		4.00%
The 2029 Convertible Notes 1 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount			$ 230,000,000
Debt Instrument, Interest Rate, Stated Percentage			3.75%
Proceeds from Convertible Debt			$ 222,000,000
Embedded Derivative, Fair Value of Embedded Derivative Liability			125,600,000
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net			$ 26,250,000
Debt Instrument, Convertible, Conversion Ratio			869.5652
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares			$ 1.15
The 2029 Convertible Notes 1 [Member] \| Scenario, Event of Default [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Redemption Price, Percentage			100.00%
Debt Instrument, Ownership Interest			25.00%
The 2029 Convertible Notes 1 [Member] \| Debt Instrument, Redemption, Period One [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Convertible, Threshold Trading Days \| TradingDays							20
Debt Instrument, Convertible, Threshold Consecutive Trading Days \| TradingDays							30
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger							130.00%
The 2029 Convertible Notes 1 [Member] \| Debt Instrument, Redemption, Period Two [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Convertible, Threshold Trading Days \| TradingDays							5
Debt Instrument, Convertible, Threshold Consecutive Trading Days \| TradingDays							10
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger							98.00%
The 2029 Convertible Affiliate Notes [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount			$ 71,100,000
Debt Instrument, Interest Rate, Stated Percentage			3.75%
Notes and Other Debt [Member]
Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate				2.00%			2.00%			1.80%