Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and include the accounts of the Company and its direct and indirect wholly owned subsidiaries. All inter-company accounts and transactions have been eliminated in consolidation. The results reported in these unaudited interim condensed consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for any subsequent period or for the entire year. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto included in the Fiscal Year 2022 Form 10-K. Certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in the accompanying interim condensed consolidated financial statements. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting only of normal recurring adjustments, except as otherwise indicated, necessary for a fair statement of its financial position, results of operations, and cash flows of the Company for all periods presented.
Substantial Doubt about Going Concern [Policy Text Block]	Going Concern The Company's condensed consolidated financial statements are prepared using U.S. GAAP applicable to a going concern basis of accounting, which contemplates the realization of assets and liquidation of liabilities in the normal course of business. The Company had an accumulated deficit of $922.1 million and working capital of $33.8 million as of September 30, 2023. The Company has not established sufficient sales revenues to cover its operating costs and requires additional capital to proceed with its operating plan. The ability of the Company to continue as a going concern is dependent on the Company obtaining adequate capital to fund operating losses until it becomes profitable. The Company will need to obtain additional financing to execute its business plan. Management's plans to obtain additional resources for the Company may include additional sales of equity, traditional financing, such as loans, entry into strategic collaborations, entry into an out-licensing arrangement or provision of additional distribution rights in some or all of its markets. However, management cannot provide any assurance that the Company will be successful in accomplishing any or all of its plans. The ability to successfully resolve these factors raises substantial doubt about the Company’s ability to meet its existing obligations, and to continue as a going concern for one year from the date that these financial statements are issued. The condensed consolidated financial statements of the Company do not include any adjustments that may result from the outcome of these aforementioned uncertainties.
Consolidation, Policy [Policy Text Block]	Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of the Company and its direct and indirect wholly owned subsidiaries, Asensus Surgical US, Inc., Asensus International, Inc., Asensus Surgical Italia S.r.l., Asensus Surgical Europe S.à r.l., Asensus Surgical Taiwan Ltd., Asensus Surgical Japan K.K., Asensus Surgical Israel Ltd., Asensus Surgical Netherlands B.V., and Asensus Surgical Canada, Inc. All inter-company accounts and transactions have been eliminated in consolidation.
Risk And Uncertainties, Policy [Policy Text Block]	Risk and Uncertainties The Company is subject to risks similar to other similarly sized companies in the medical device industry. These risks include, without limitation: the historical lack of profitability; the Company’s ability to raise additional capital; its ability to successfully develop, clinically test, obtain regulatory clearance for and commercialize its products and products in development; negative impacts on the Company's operations caused by the hostilities in the Middle East, the COVID-19 pandemic and other geopolitical factors; the success of its market development efforts; the timing and outcome of the regulatory review process for its products in development; changes in the healthcare regulatory environments of the United States, the European Union, Japan, Taiwan, and other countries in which the Company operates or intends to operate; its ability to attract and retain key management, marketing and scientific personnel; its ability to successfully prepare, file, prosecute, maintain, defend and enforce patent claims and other intellectual property rights; its ability to successfully transition from a research and development company to a marketing, sales and distribution company; competition in the market for robotic surgical devices; and its ability to identify and pursue development of additional products.
Use of Estimates, Policy [Policy Text Block]	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 and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include impairment considerations for long-lived assets, fair value estimates related to contingent consideration, stock-based compensation expense, revenue recognition, short-term and long-term investments, excess and obsolete inventory reserves, inventory classification between current and non-current, measurement of lease liabilities and corresponding right-of-use (“ROU”) assets, measurement of warrant liabilities and deferred tax asset valuation allowances.
Warrant Liabilities [Policy Text Block]	Warrant Liabilities The Company’s warrants (see Note 12) are measured at fair value using a simulation model which takes into account, as of the valuation date, factors including the current exercise price, the expected life of the warrant, the current price of the underlying stock, its expected volatility, holding cost and the risk-free interest rate for the term of the warrant (see Note 4). The warrant liability is revalued at each reporting period and changes in fair value are recognized in the consolidated statements of operations and comprehensive loss. The selection of the appropriate valuation model and the inputs and assumptions that are required to determine the valuation requires significant judgment and requires management to make estimates and assumptions that affect the reported amount of the related liability and reported amounts of the change in fair value. Actual results could differ from those estimates, and changes in these estimates are recorded when known.
New Accounting Pronouncements, Policy [Policy Text Block]	Impact of Recently Issued Accounting Standards The Company has evaluated issued Accounting Standards Updates (“ASUs”) not yet adopted and believes the adoption of these standards will not have a material impact on its consolidated financial statements.

Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Basis of Accounting, Policy [Policy Text Block]

Basis of Presentation

The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and include the accounts of the Company and its direct and indirect wholly owned subsidiaries. All inter-company accounts and transactions have been eliminated in consolidation. The results reported in these unaudited interim condensed consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for any subsequent period or for the entire year. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto included in the Fiscal Year 2022 Form 10-K. Certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in the accompanying interim condensed consolidated financial statements. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting only of normal recurring adjustments, except as otherwise indicated, necessary for a fair statement of its financial position, results of operations, and cash flows of the Company for all periods presented.

Substantial Doubt about Going Concern [Policy Text Block]

Going Concern

The Company's condensed consolidated financial statements are prepared using U.S. GAAP applicable to a going concern basis of accounting, which contemplates the realization of assets and liquidation of liabilities in the normal course of business. The Company had an accumulated deficit of $922.1 million and working capital of $33.8 million as of September 30, 2023. The Company has not established sufficient sales revenues to cover its operating costs and requires additional capital to proceed with its operating plan. The ability of the Company to continue as a going concern is dependent on the Company obtaining adequate capital to fund operating losses until it becomes profitable.

The Company will need to obtain additional financing to execute its business plan. Management's plans to obtain additional resources for the Company may include additional sales of equity, traditional financing, such as loans, entry into strategic collaborations, entry into an out-licensing arrangement or provision of additional distribution rights in some or all of its markets. However, management cannot provide any assurance that the Company will be successful in accomplishing any or all of its plans. The ability to successfully resolve these factors raises substantial doubt about the Company’s ability to meet its existing obligations, and to continue as a going concern for one year from the date that these financial statements are issued. The condensed consolidated financial statements of the Company do not include any adjustments that may result from the outcome of these aforementioned uncertainties.

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

The accompanying condensed consolidated financial statements include the accounts of the Company and its direct and indirect wholly owned subsidiaries, Asensus Surgical US, Inc., Asensus International, Inc., Asensus Surgical Italia S.r.l., Asensus Surgical Europe S.à r.l., Asensus Surgical Taiwan Ltd., Asensus Surgical Japan K.K., Asensus Surgical Israel Ltd., Asensus Surgical Netherlands B.V., and Asensus Surgical Canada, Inc. All inter-company accounts and transactions have been eliminated in consolidation.

Risk And Uncertainties, Policy [Policy Text Block]

Risk and Uncertainties

The Company is subject to risks similar to other similarly sized companies in the medical device industry. These risks include, without limitation: the historical lack of profitability; the Company’s ability to raise additional capital; its ability to successfully develop, clinically test, obtain regulatory clearance for and commercialize its products and products in development; negative impacts on the Company's operations caused by the hostilities in the Middle East, the COVID-19 pandemic and other geopolitical factors; the success of its market development efforts; the timing and outcome of the regulatory review process for its products in development; changes in the healthcare regulatory environments of the United States, the European Union, Japan, Taiwan, and other countries in which the Company operates or intends to operate; its ability to attract and retain key management, marketing and scientific personnel; its ability to successfully prepare, file, prosecute, maintain, defend and enforce patent claims and other intellectual property rights; its ability to successfully transition from a research and development company to a marketing, sales and distribution company; competition in the market for robotic surgical devices; and its ability to identify and pursue development of additional products.

Use of Estimates, Policy [Policy Text Block]

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 and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include impairment considerations for long-lived assets, fair value estimates related to contingent consideration, stock-based compensation expense, revenue recognition, short-term and long-term investments, excess and obsolete inventory reserves, inventory classification between current and non-current, measurement of lease liabilities and corresponding right-of-use (“ROU”) assets, measurement of warrant liabilities and deferred tax asset valuation allowances.

Warrant Liabilities [Policy Text Block]

Warrant Liabilities

The Company’s warrants (see Note 12) are measured at fair value using a simulation model which takes into account, as of the valuation date, factors including the current exercise price, the expected life of the warrant, the current price of the underlying stock, its expected volatility, holding cost and the risk-free interest rate for the term of the warrant (see Note 4). The warrant liability is revalued at each reporting period and changes in fair value are recognized in the consolidated statements of operations and comprehensive loss. The selection of the appropriate valuation model and the inputs and assumptions that are required to determine the valuation requires significant judgment and requires management to make estimates and assumptions that affect the reported amount of the related liability and reported amounts of the change in fair value. Actual results could differ from those estimates, and changes in these estimates are recorded when known.

New Accounting Pronouncements, Policy [Policy Text Block]

Impact of Recently Issued Accounting Standards

The Company has evaluated issued Accounting Standards Updates (“ASUs”) not yet adopted and believes the adoption of these standards will not have a material impact on its consolidated financial statements.