Note 1 - Basis of Presentation	9 Months Ended
Sep. 30, 2021
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. Basis of Presentation The interim condensed consolidated financial statements of Psychemedics Corporation (the “Company”) presented herein, have been prepared pursuant to the rules of the Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10-Q and do not include all the information and note disclosures required by accounting principles generally accepted in the United States of America. These statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's 2020 Annual Report on Form 10-K (“10-K”), as filed with the SEC. The condensed consolidated balance sheet as of September 30, 2021, the condensed consolidated statements of operations and comprehensive income/(loss) for the three and nine months ended September 30, 2021 and 2020, the condensed consolidated statements of shareholders’ equity for the nine months ended September 30, 2021 and 2020, and the condensed consolidated statements of cash flows for the nine months ended September 30, 2021 and 2020 are unaudited but, in the opinion of management, include all adjustments necessary for a fair presentation of results for these interim periods. The condensed consolidated balance sheet as of December 31, 2020, has been derived from the Company’s annual financial statements that were audited by an independent registered public accounting firm, but does not include all of the information and footnotes required for complete annual financial statements. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and 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. The results of operations for the three and nine months ended September 30, 2021, may not be indicative of the results that may be expected for the year ending December 31, 2021, or any other period. Unless the context requires otherwise, the terms “we”, “us”, “our”, or “the Company” refer to Psychemedics Corporation and its wholly-owned consolidated subsidiaries.

Note 1 - Basis of Presentation

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

1. Basis of Presentation

The interim condensed consolidated financial statements of Psychemedics Corporation (the “Company”) presented herein, have been prepared pursuant to the rules of the Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10-Q and do not include all the information and note disclosures required by accounting principles generally accepted in the United States of America. These statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's 2020 Annual Report on Form 10-K (“10-K”), as filed with the SEC.

The condensed consolidated balance sheet as of September 30, 2021, the condensed consolidated statements of operations and comprehensive income/(loss) for the three and nine months ended September 30, 2021 and 2020, the condensed consolidated statements of shareholders’ equity for the nine months ended September 30, 2021 and 2020, and the condensed consolidated statements of cash flows for the nine months ended September 30, 2021 and 2020 are unaudited but, in the opinion of management, include all adjustments necessary for a fair presentation of results for these interim periods. The condensed consolidated balance sheet as of December 31, 2020, has been derived from the Company’s annual financial statements that were audited by an independent registered public accounting firm, but does not include all of the information and footnotes required for complete annual financial statements.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and 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. The results of operations for the three and nine months ended September 30, 2021, may not be indicative of the results that may be expected for the year ending December 31, 2021, or any other period.

Unless the context requires otherwise, the terms “we”, “us”, “our”, or “the Company” refer to Psychemedics Corporation and its wholly-owned consolidated subsidiaries.