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Note 5 - Certain Balance Sheet Accounts (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (In thousands) |
OMIDRIA milestone receivable |  | $ | — |  |  | $ | 200,000 |
OMIDRIA royalty receivables |  |  | 6,724 |  |  |  | 12,966 |
Other receivables |  |  | 1,372 |  |  |  | 255 |
Total receivables |  | $ | 8,096 |  |  | $ | 213,221 |
Property, Plant and Equipment [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (In thousands) |
Equipment under finance leases |  | $ | 6,929 |  |  | $ | 6,204 |
Laboratory equipment |  |  | 3,525 |  |  |  | 3,135 |
Computer equipment |  |  | 1,113 |  |  |  | 1,076 |
Office equipment and furniture |  |  | 624 |  |  |  | 625 |
Total cost |  |  | 12,191 |  |  |  | 11,040 |
Less accumulated depreciation and amortization |  |  | (10,241 | ) |  |  | (9,548 | )
Total property and equipment, net |  | $ | 1,950 |  |  | $ | 1,492 |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (In thousands) |
Clinical trials |  | $ | 10,168 |  |  | $ | 5,536 |
Employee compensation |  |  | 7,380 |  |  |  | 6,665 |
Contract research and development |  |  | 6,223 |  |  |  | 3,209 |
Interest payable |  |  | 4,242 |  |  |  | 5,172 |
Consulting and professional fees |  |  | 3,539 |  |  |  | 4,425 |
Other accrued expenses |  |  | 316 |  |  |  | 5,544 |
Total accrued expenses |  | $ | 31,868 |  |  | $ | 30,551 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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