Note 6 - Debt - Debt Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 17, 2026	Dec. 31, 2025
Debt, Long-Term and Short-Term, Combined Amount	$ 73,291		$ 68,427
The 2029 Notes [Member]
2029 Notes repurchase obligation, net	31,259	$ 30,600	0
Long-term	42,032		51,364
The 2029 Notes [Member] \| Conversion Option Derivative [Member]
2029 Notes embedded derivative reported at fair value	55,216		157,171
Convertible Senior Notes 2026 [Member]
Short-term	$ 0		$ 17,063

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

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+ Details

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References + Details