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Note 3 - Balance Sheet Components | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Supplemental Balance Sheet Disclosures [Text Block] |
3. | Balance Sheet Components
Prepaid Expenses – Prepaid expenses consist of the following as of December 31, 2022 and 2021:
|  | 2022 |  |  | 2021 |
Prepaid clinical trial costs (current portion) |  | $ | 1,171,077 |  |  | $ | - |
Prepaid insurance premiums |  |  | 107,876 |  |  |  | 123,248 |
Prepaid rent |  |  | 13,045 |  |  |  | 13,045 |
Other prepaid expenses |  |  | 34,000 |  |  |  | 19,947 |
Total prepaid expenses |  | $ | 1,325,998 |  |  | $ | 156,240 |
Property and Equipment – Property and equipment consist of the following as of December 31, 2022 and 2021:
|  | 2022 |  |  | 2021 |
Equipment and furnishings |  | $ | 725,812 |  |  | $ | 591,554 |
Leasehold improvements |  |  | 115,605 |  |  |  | 115,605 |
Total property and equipment |  |  | 841,417 |  |  |  | 707,159 |
Accumulated depreciation and amortization |  |  | (606,505 | ) |  |  | (550,221 | )
Property and equipment, net |  | $ | 234,912 |  |  | $ | 156,938 |
Depreciation expense was $56,284 and $38,521 during the years ended December 31, 2022 and 2021, respectively. Other Assets – Other assets consist of the following as of December 31, 2022 and 2021:
|  | 2022 |  |  | 2021 |
Prepaid clinical trial costs (noncurrent portion) |  | $ | 2,083,276 |  |  | $ | - |
Prepaid technology license fees |  |  | 80,000 |  |  |  | - |
Deposits |  |  | 11,010 |  |  |  | 11,010 |
Total other assets |  | $ | 2,174,286 |  |  | $ | 11,010 |
Accrued Expenses – Accrued expenses consist of the following as of December 31, 2022 and 2021:
|  | 2022 |  |  | 2021 |
Accrued license fees (current portion) |  | $ | 2,000,000 |  |  | $ | 3,000,000 |
Payroll-related liabilities |  |  | 550,810 |  |  |  | 269,000 |
Other accrued expenses |  |  | 449,402 |  |  |  | 108,826 |
Total accrued expenses |  | $ | 3,000,212 |  |  | $ | 3,377,826 |
Other Liabilities – Other liabilities were $2,000,000 at December 31, 2021 and consist of the noncurrent portion of accrued technology license fees.

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI https://asc.fasb.org/topic&trid=2122208 + Details
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