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Selected Balance Sheet Information (Tables) | 12 Months Ended
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Dec. 31, 2023
Selected Balance Sheet Information |
Schedule of prepaid expenses and other current assets | PREPAID EXPENSES AND OTHER CURRENT ASSETS (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2023 | ​ | 2022
Prepaid clinical research organizations | ​ | $ | 1,119 | ​ | $ | 2,293
Prepaid insurance | ​ | ​ | 496 | ​ | ​ | 637
Prepaid manufacturing expenses | ​ | ​ | 491 | ​ | ​ | 418
Prepaid consulting, subscriptions and other expenses | ​ | ​ | 180 | ​ | ​ | 155
VAT receivable | ​ |  | 128 | ​ |  | 87
Receivable from Grifols | ​ |  | — | ​ |  | 144
​ | ​ | ​ | ​ | ​ | ​ | ​
Total prepaid expsnese and other current assets | ​ | $ | 2,414 | ​ | $ | 3,734
​
Schedule of property, plant and equipment, net | PROPERTY AND EQUIPMENT (in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2023 | ​ | 2022
Computers and office equipment | ​ | $ | 902 | ​ | $ | 897
Other property, plant and equipment | ​ | ​ | 417 | ​ | ​ | 208
Leasehold improvements | ​ |  | 94 | ​ |  | 94
Software | ​ |  | 11 | ​ |  | 11
​ | ​ |  | 1,424 | ​ |  | 1,210
Less: accumulated depreciation and amortization | ​ |  | (1,002) | ​ |  | (865)
​ | ​ |  |  | ​ |  |
Total property and equipment, net | ​ | $ | 422 | ​ | $ | 345
Schedule of accrued expenses | ACCRUED EXPENSES (in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2023 | ​ | 2022
Accrued clinical consulting services | ​ | $ | 1,700 | ​ | $ | 807
Accrued manufacturing costs | ​ | ​ | 843 | ​ | ​ | 197
Accrued vendor payments | ​ | ​ | 452 | ​ | ​ | 492
​ | ​ |  |  | ​ |  |
Total accrued expesnes | ​ | $ | 2,995 | ​ | $ | 1,496
Schedule of accrued employee benefits | ACCRUED EMPLOYEE BENEFITS (in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2023 | ​ | 2022
Accrued bonus expense | ​ | $ | 1,307 | ​ | $ | 1,216
Accrued compensation expense | ​ |  | 127 | ​ |  | 87
Accrued vacation expense | ​ | ​ | 83 | ​ | ​ | 100
​ | ​ |  |  | ​ | ​ |
Total accrued employee benefits | ​ | $ | 1,517 | ​ | $ | 1,403
​

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