Note 2 - Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 2. Summary of Significant Accounting Policies Basis of Presentation, Liquidity and Going Concern – The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the accounting and disclosure rules and regulations of the SEC assuming the Company will continue as a going concern. The Company is a clinical-stage biotechnology company with no product sales. Its primary source of capital is from the sale and issuance of common stock and common stock warrants. As of September 30, 2023, the Company had cash, cash equivalents, restricted cash, and investments of $53.0 million. The Company’s cash, cash equivalents, restricted cash and investments are not sufficient to fund the Company’s planned operations for a period of 12 months from the date the financial statements are issued. The Company will be dependent upon raising additional capital through placement of its common stock, notes or other securities, borrowings, or entering into a partnership with a strategic party in order to implement its business plan. The Company is currently not in compliance with the minimum bid price requirement for continued listing on The Nasdaq Capital Market and has been provided an initial compliance period until January 17, 2024, to regain compliance. The Company may be eligible for an additional 180 calendar days compliance period under certain circumstances. If the Company does not regain compliance during the compliance period, the Company’s common stock will be delisted from Nasdaq. The delisting of the Company's common stock from Nasdaq may make it more difficult for the Company to raise capital on favorable terms in the future, or at all. There can be no assurance that the Company will be successful raising additional capital. Based on management's current plan, the Company expects to have enough cash runway into the third quarter of 2024. If the Company is unable to raise additional capital in sufficient amounts or on acceptable terms, management’s plans include further reducing or delaying operating expenses. These conditions raise substantial doubt about the Company’s ability to continue as a going concern for a period of one year from the date of the issuance of these condensed consolidated financial statements. The accompanying condensed consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business. The financial statements do not include any adjustments that might be necessary if the Company is unable to continue as a going concern. The condensed consolidated balance sheet as of December 31, 2022, included in this filing, was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Certain information and footnote disclosures normally included in consolidated financial statements have been condensed or omitted pursuant to these rules and regulations. These condensed consolidated financial statements should be read in conjunction with the Company’s audited financial statements and footnotes related thereto for the year ended December 31, 2022, included in the Company’s Annual Report on Form 10-K filed with the SEC on March 15, 2023 (the “Annual Report”). Unless noted below, there have been no material changes to the Company’s significant accounting policies described in Note 2 to the consolidated financial statements included in the Annual Report. In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the Company’s financial position and the results of its operations and cash flows. The results of operations for such interim periods are not necessarily indicative of the results to be expected for the full year or any future periods. Basis of Consolidation – The condensed consolidated financial statements include the financial statements of Vaxart, Inc. and its subsidiaries. All significant transactions and balances between Vaxart, Inc. and its subsidiaries have been eliminated in consolidation. Use of Estimates – The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities in the financial statements and accompanying notes. Actual results and outcomes could differ from these estimates and assumptions. Concentration of Credit Risk – Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash, cash equivalents, restricted cash and available-for-sale investments. The Company places its cash, cash equivalents, restricted cash and available-for-sale investments at financial institutions that management believes are of high credit quality. The Company is exposed to credit risk in the event of default by the financial institutions holding the cash, cash equivalents and restricted cash to the extent such amounts are in excess of the federally insured limits. Losses incurred or a lack of access to such funds could have a significant adverse impact on the Company’s financial condition, results of operations, and cash flows. The primary focus of the Company’s investment strategy is to preserve capital and meet liquidity requirements. The Company’s investment policy addresses the level of credit exposure by limiting the concentration in any one corporate issuer or sector and establishing a minimum allowable credit rating. Recent Accounting Pronouncements The Company has reviewed all newly-issued accounting pronouncements that are not yet effective and concluded that they are either not applicable to its operations or their adoption is not expected to have a material impact on its financial position or results of operations.

Note 2 - Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2023

Significant Accounting Policies [Text Block]

NOTE 2. Summary of Significant Accounting Policies

Basis of Presentation, Liquidity and Going Concern – The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the accounting and disclosure rules and regulations of the SEC assuming the Company will continue as a going concern.

The Company is a clinical-stage biotechnology company with no product sales. Its primary source of capital is from the sale and issuance of common stock and common stock warrants. As of September 30, 2023, the Company had cash, cash equivalents, restricted cash, and investments of $53.0 million. The Company’s cash, cash equivalents, restricted cash and investments are not sufficient to fund the Company’s planned operations for a period of 12 months from the date the financial statements are issued.

The Company will be dependent upon raising additional capital through placement of its common stock, notes or other securities, borrowings, or entering into a partnership with a strategic party in order to implement its business plan. The Company is currently not in compliance with the minimum bid price requirement for continued listing on The Nasdaq Capital Market and has been provided an initial compliance period until January 17, 2024, to regain compliance. The Company may be eligible for an additional 180 calendar days compliance period under certain circumstances. If the Company does not regain compliance during the compliance period, the Company’s common stock will be delisted from Nasdaq. The delisting of the Company's common stock from Nasdaq may make it more difficult for the Company to raise capital on favorable terms in the future, or at all. There can be no assurance that the Company will be successful raising additional capital.

Based on management's current plan, the Company expects to have enough cash runway into the third quarter of 2024. If the Company is unable to raise additional capital in sufficient amounts or on acceptable terms, management’s plans include further reducing or delaying operating expenses. These conditions raise substantial doubt about the Company’s ability to continue as a going concern for a period of one year from the date of the issuance of these condensed consolidated financial statements. The accompanying condensed consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business.

The financial statements do not include any adjustments that might be necessary if the Company is unable to continue as a going concern.

The condensed consolidated balance sheet as of December 31, 2022, included in this filing, was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Certain information and footnote disclosures normally included in consolidated financial statements have been condensed or omitted pursuant to these rules and regulations. These condensed consolidated financial statements should be read in conjunction with the Company’s audited financial statements and footnotes related thereto for the year ended December 31, 2022, included in the Company’s Annual Report on Form 10-K filed with the SEC on March 15, 2023 (the “Annual Report”). Unless noted below, there have been no material changes to the Company’s significant accounting policies described in Note 2 to the consolidated financial statements included in the Annual Report. In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the Company’s financial position and the results of its operations and cash flows. The results of operations for such interim periods are not necessarily indicative of the results to be expected for the full year or any future periods.

Basis of Consolidation – The condensed consolidated financial statements include the financial statements of Vaxart, Inc. and its subsidiaries. All significant transactions and balances between Vaxart, Inc. and its subsidiaries have been eliminated in consolidation.

Use of Estimates – The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities in the financial statements and accompanying notes. Actual results and outcomes could differ from these estimates and assumptions.

Concentration of Credit Risk – Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash, cash equivalents, restricted cash and available-for-sale investments. The Company places its cash, cash equivalents, restricted cash and available-for-sale investments at financial institutions that management believes are of high credit quality. The Company is exposed to credit risk in the event of default by the financial institutions holding the cash, cash equivalents and restricted cash to the extent such amounts are in excess of the federally insured limits. Losses incurred or a lack of access to such funds could have a significant adverse impact on the Company’s financial condition, results of operations, and cash flows.

The primary focus of the Company’s investment strategy is to preserve capital and meet liquidity requirements. The Company’s investment policy addresses the level of credit exposure by limiting the concentration in any one corporate issuer or sector and establishing a minimum allowable credit rating.

Recent Accounting Pronouncements

The Company has reviewed all newly-issued accounting pronouncements that are not yet effective and concluded that they are either not applicable to its operations or their adoption is not expected to have a material impact on its financial position or results of operations.