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Note 2 - Basis of Presentation, Principles of Consolidation, and Significant Accounting Policies and Liquidity - Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Prepaid sponsored research $ 1,277 $ 1,515
Prepaid insurance 1,143 564
Vendor prepayments and deposits 457 545
Non-trade receivables 5 95
Related party receivables 4 4
Total prepaid expenses and other current assets $ 2,886 $ 2,723