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Note 9 - Lease Liabilities | 6 Months Ended
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Jun. 30, 2025
Notes to Financial Statements |
Lease Disclosure [Text Block] | Note 9—Lease Liabilities We have an operating lease for our office and laboratory facilities with an initial term that ends in November 2027 and two options to extend the lease term by an additional five years each. Restricted investments of $1.1 million represent the security deposit on our office and laboratory facilities. We have finance leases for certain laboratory and office equipment that have lease terms expiring through October 2029. Supplemental lease information is as follows:
​ |  | Three Months Ended |  |  | Six Months Ended |
​ |  | June 30, |  |  | June 30, |
​ |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
​ |  | (In thousands) |
Lease cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease cost |  | $ | 1,680 |  |  | $ | 1,606 |  |  | $ | 3,206 |  |  | $ | 3,211 |
Finance lease cost: |  | ​ |  |  |  |  |  |  | ​ |  |  |  |  |
Amortization |  |  | 234 |  |  |  | 149 |  |  |  | 367 |  |  |  | 295 |
Interest |  |  | 51 |  |  |  | 40 |  |  |  | 89 |  |  |  | 97 |
Variable lease cost |  |  | 950 |  |  |  | 882 |  |  |  | 1,891 |  |  |  | 1,798 |
Sublease income |  |  | (411 | ) |  |  | (385 | ) |  |  | (725 | ) |  |  | (774 | )
Net lease cost |  | $ | 2,504 |  |  | $ | 2,292 |  |  | $ | 4,828 |  |  | $ | 4,627 |
The supplemental cash flow information related to leases is as follows:
​ |  | Six Months Ended |
​ |  | June 30, |
​ |  | 2025 |  |  | 2024 |
​ |  | (In thousands) |
Cash paid for amounts included in the measurement of lease liabilities |  | ​ |  |  | ​ |
Cash payments for operating leases |  | $ | 3,444 |  |  | $ | 3,630 |
Cash payments for financing leases |  |  | 466 |  |  |  | 361 |

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- Definition The entire disclosure of information about leases. + References No definition available. + Details
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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