Cash and Cash Equivalents, Policy [Policy Text Block]

Cash - Cash includes cash and highly liquid investments with original maturities of three months or less. At various times during the periods ended September 30, 2022, and December 31, 2021, the Company had cash deposits in excess of the maximum amounts insured by the Federal Deposit Insurance Corporation. At September 30, 2022, and December 31, 2021, the Company’s cash was held at four financial institutions.

Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]

Allowance for Doubtful Accounts - The Company performs on-going credit evaluations of its customers and adjusts credit limits based upon payment history and the customer’s current credit worthiness, as determined by the review of their current credit information. Collections and payments from customers are continuously monitored. The Company maintains an allowance for doubtful accounts, which is based upon historical experience as well as specific customer collection issues that have been identified. While such bad debt expenses have historically been within expectations and allowances established, the Company cannot guarantee that it will continue to experience the same credit loss rates that it has in the past. If the financial condition of customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required.

Property, Plant and Equipment, Impairment [Policy Text Block]

Long-Lived Assets - Andrea accounts for its long-lived assets in accordance with Accounting Standards Codification (“ASC”) 360 “Property, Plant and Equipment” for purposes of determining and measuring impairment of its long-lived assets (primarily intangible assets) other than goodwill. Andrea’s policy is to periodically review the value assigned to its long-lived assets to determine if they have been permanently impaired by adverse conditions which may affect Andrea whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If Andrea identifies a permanent impairment such that the carrying amount of Andrea’s long lived assets is not recoverable using the sum of an undiscounted cash flow projection (gross margin dollars from product revenues), the impaired asset is adjusted to its estimated fair value, based on an estimate of future discounted cash flows which becomes the new cost basis for the impaired asset. Considerable management judgment is necessary to estimate undiscounted future operating cash flows and fair values and, accordingly, actual results could vary significantly from such estimates. At September 30, 2022 and December 31, 2021, Andrea concluded that intangibles and long-lived assets were not impaired.

Revenue [Policy Text Block]

Revenue Recognition - The Company recognizes revenue using the following five-step approach:This approach includes the evaluation of sales terms, performance obligations, variable consideration, and costs to obtain and fulfill contracts.The Company disaggregates its revenues into three contract types: (1) product revenues, (2) service related revenues and (3) license revenues and then further disaggregates its revenues by operating segment. Generally, product revenue is comprised of microphones and microphone connectivity product revenues. Product revenue is recognized when the Company satisfies its performance obligation by transferring promised goods to a customer. Product revenue is measured at the transaction price, which is based on the amount of consideration that the Company expects to receive in exchange for transferring the promised goods to the customer. Contracts with customers are comprised of customer purchase orders, invoices and written contracts. Customer product orders are fulfilled at a point in time and not over a period of time. The Company does not have arrangements for returns from customers and does not have any future obligations directly or indirectly related to product resale by customers. The Company has no sales incentive programs. Service related and licensing revenues are recognized based on the terms and conditions of individual contracts using the five-step approach listed above, which identifies performance obligations and transaction price. Typically, Andrea receives licensing reports from its licensees approximately one quarter in arrears due to the fact that its agreements require customers to report revenues between 30 to 60 days after the end of the quarter. Under this accounting policy, the licensing revenues reported are not based upon estimates. In addition, service related revenues, which are short-term in nature, are generally performed on a time-and-material basis under separate service arrangements and the corresponding revenue is generally recognized as the services are performed. During the three months ending September 30, 2022 and 2021 and the nine months ending September 30, 2022, there were no service related revenues. During the nine months ending September 30, 2021, there was approximately $4,000 of service related revenue. During the three and nine months ending September 30, 2022, $83,113 and $126,784, respectively, of deferred revenue was recognized as product revenue. At September 30, 2022, the Company had $12,790 of deferred revenue, which are advance payments from customers that are expected to be recognized as product revenue within one year and are included in trade accounts payable and other current liabilities in the Company’s condensed consolidated balance sheets. See Note 9 for an additional description of the Company’s reportable business segments and the revenue reported in each segment.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates - The preparation of unaudited condensed consolidated interim financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosures of contingent assets and liabilities at the date of the unaudited condensed consolidated interim financial statements and the reported amounts of revenues and expenses during the reporting period.Management bases its estimates on historical experience and on various assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. The most significant estimates are used in accounting for allowances for bad debts, inventory valuation and obsolescence, deferred income taxes valuation allowance, expected realizable values for assets (primarily intangible assets), contingencies, revenue recognition and liquidity. Estimates and assumptions are periodically reviewed and the effects of any material revisions are reflected in the consolidated financial statements in the period that they are determined to be necessary. Actual results could differ from those estimates and assumptions.

Reclassification, Comparability Adjustment [Policy Text Block]

Reclassifications – Certain prior period balances have been reclassified in order to conform to the current year presentation. These reclassifications have no effect on previously reported results of operation or loss per share.