Note 1 - Business and Organization	6 Months Ended
Jun. 30, 2022
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1. Business and Organization *Description of Business* BioLargo, Inc. (the “Company”) is an innovative technology developer and environmental engineering company driven by a mission to “make life better” by delivering robust, sustainable solutions for a broad range of industries and applications, with a focus on clean water, clean air and a cleaner earth. The Company also owns a majority interest in a medical products subsidiary that has licensed BioLargo’s technologies. Our business strategy is straightforward: we invent or acquire technologies that we believe have the potential to be disruptive in large commercial markets; we develop and validate these technologies to advance and promote their commercial success as we leverage our considerable scientific, engineering, and entrepreneurial talent; we then monetize these technical assets through a variety of business structures that may include licensure, joint venture, sale, spin off, or by deploying direct to market strategies. *Liquidity / Going concern* The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of our business. For the six months ended June 30, 2022, we had a net loss of $2,877,000, used $1,864,000 cash in operations, and at June 30, 2022, we had working capital of $962,000, and current assets of $2,141,000. Two of our four operating subsidiaries – ONM Environmental and BLEST – generated positive operating income. (See Note 9.) We do not believe operating profits in the year ended December 31, 2022, will be sufficient to fund our current level of operations, and therefore believe we will have to obtain further investment capital to continue to fund operations, such as through our purchase agreement with Lincoln Park Capital, and private sales of our securities. (See Note 3.) We have been, and anticipate that we will continue to be, limited in terms of our capital resources. If we are unable to rely on our current arrangement with Lincoln Park to continue to fund our working capital requirements, we will have to rely on other forms of financing, and there is no assurance that we will be able to do so, or if we do so, it will be on favorable terms. The foregoing factors raise substantial doubt about our ability to continue as a going concern, unless we are able to continue to raise funds through stock sales to Lincoln Park or other private financings, and in the long term, our ability to attain a reasonable threshold of operating efficiencies and achieve profitable operations by licensing or otherwise commercializing products incorporating our technologies. The consolidated financial statements do not include any adjustments that might be necessary if we are unable to continue as a going concern. *Organization* We are a Delaware corporation formed in 1991. We have four wholly-owned subsidiaries: BioLargo Life Technologies, Inc., organized under the laws of the State of California in 2006; ONM Environmental, Inc., organized under the laws of the State of California in 2009; BioLargo Water Investment Group Inc., organized under the laws of the State of California in 2019, which wholly owns BioLargo Water, Inc., organized under the laws of Canada in 2014; and BioLargo Development Corp., organized under the laws of the State of California in 2016. Additionally, we own 89% of BioLargo Engineering Science and Technologies, LLC (“BLEST”), organized under the laws of the State of Tennessee in 2017. We also own 58% of Clyra Medical Technologies, Inc. (“Clyra” or “Clyra Medical”), organized under the laws of the State of California in 2012, and consolidate their financial statements (see Note 2, subheading “Principles of Consolidation,” and Note 8). The unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and pursuant to Rule 8-03 of Regulation S-X under the Securities Act of 1933, as amended. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for annual financial statements. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. For some of our activities, we are still operating in the early stages of the sales and distribution process, and therefore our operating results for the six months ended June 30, 2022, are not necessarily indicative of the results that may be expected for the year ending December 31, 2022, or for any other period. These unaudited consolidated financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2022.

Note 1 - Business and Organization

6 Months Ended

Jun. 30, 2022

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

Note 1. Business and Organization

Description of Business

BioLargo, Inc. (the “Company”) is an innovative technology developer and environmental engineering company driven by a mission to “make life better” by delivering robust, sustainable solutions for a broad range of industries and applications, with a focus on clean water, clean air and a cleaner earth. The Company also owns a majority interest in a medical products subsidiary that has licensed BioLargo’s technologies. Our business strategy is straightforward: we invent or acquire technologies that we believe have the potential to be disruptive in large commercial markets; we develop and validate these technologies to advance and promote their commercial success as we leverage our considerable scientific, engineering, and entrepreneurial talent; we then monetize these technical assets through a variety of business structures that may include licensure, joint venture, sale, spin off, or by deploying direct to market strategies.

Liquidity / Going concern

The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of our business. For the six months ended June 30, 2022, we had a net loss of $2,877,000, used $1,864,000 cash in operations, and at June 30, 2022, we had working capital of $962,000, and current assets of $2,141,000. Two of our four operating subsidiaries – ONM Environmental and BLEST – generated positive operating income. (See Note 9.)

We do not believe operating profits in the year ended December 31, 2022, will be sufficient to fund our current level of operations, and therefore believe we will have to obtain further investment capital to continue to fund operations, such as through our purchase agreement with Lincoln Park Capital, and private sales of our securities. (See Note 3.) We have been, and anticipate that we will continue to be, limited in terms of our capital resources. If we are unable to rely on our current arrangement with Lincoln Park to continue to fund our working capital requirements, we will have to rely on other forms of financing, and there is no assurance that we will be able to do so, or if we do so, it will be on favorable terms.

The foregoing factors raise substantial doubt about our ability to continue as a going concern, unless we are able to continue to raise funds through stock sales to Lincoln Park or other private financings, and in the long term, our ability to attain a reasonable threshold of operating efficiencies and achieve profitable operations by licensing or otherwise commercializing products incorporating our technologies. The consolidated financial statements do not include any adjustments that might be necessary if we are unable to continue as a going concern.

Organization

We are a Delaware corporation formed in 1991. We have four wholly-owned subsidiaries: BioLargo Life Technologies, Inc., organized under the laws of the State of California in 2006; ONM Environmental, Inc., organized under the laws of the State of California in 2009; BioLargo Water Investment Group Inc., organized under the laws of the State of California in 2019, which wholly owns BioLargo Water, Inc., organized under the laws of Canada in 2014; and BioLargo Development Corp., organized under the laws of the State of California in 2016. Additionally, we own 89% of BioLargo Engineering Science and Technologies, LLC (“BLEST”), organized under the laws of the State of Tennessee in 2017. We also own 58% of Clyra Medical Technologies, Inc. (“Clyra” or “Clyra Medical”), organized under the laws of the State of California in 2012, and consolidate their financial statements (see Note 2, subheading “Principles of Consolidation,” and Note 8).

The unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and pursuant to Rule 8-03 of Regulation S-X under the Securities Act of 1933, as amended. Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for annual financial statements. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. For some of our activities, we are still operating in the early stages of the sales and distribution process, and therefore our operating results for the six months ended June 30, 2022, are not necessarily indicative of the results that may be expected for the year ending December 31, 2022, or for any other period. These unaudited consolidated financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2022.