1. Organization and Operations	9 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Operations	Focus Universal Inc. (the “Company”) was incorporated under the laws of the State of Nevada on December 4, 2012 (“Inception”). We are a universal smart instrument developer and manufacturer, headquartered in the Los Angeles, California metropolitan area, specializing in the development and commercialization of the novel and proprietary universal smart technologies and instruments. Universal smart technology is an innovative, commercial, off-the-shelf technology with an innovative soft hardware integrated platform. Our platform provides a unique and universal wireless solution for embedded design, industrial control, test and measurement. Our smart technology software utilizes a smartphone, computer, or a mobile device as a platform and display that communicates and works in tandem with a group of external sensors and probes manufactured by different vendors in a manner that requires the user to have little or no knowledge of their unique characteristics. Our universal smart instrument (the “Ubiquitor”) consists of a reusable foundation component which includes a wireless gateway (which allows the instrument to connect to the smartphone via Bluetooth and wifi technology), a universal smart application software (our “Application”) which is installed on the user’s smartphone allowing the sensor readouts to be monitored on the smartphone screen. The Ubiquitor also connects to a variety of individual scientific sensors that collect unique data points, from moisture, light, and airflow to other things like electricity voltage meters and a wide variety of applications. These data points are then sent wirelessly to the smartphone and the data is organized on the smartphone screen. The smartphone, foundation, and sensor readouts together perform the functions of many traditional scientific and engineering instruments and are intended to replace the traditional, wired stand-alone instruments at a fraction of their cost. Change in Control On December 29, 2014, Xu Tang and Desheng Wang, two non-affiliate persons, acquired 5,970,000 shares of the Company’s Common Stock from the Company’s shareholders. This represents over 90% of the Company’s outstanding common stock and therefore represents a change in control of the Company’s ownership. Effective immediately on December 29, 2014, Ms. Popova resigned as Chief Executive Officer and President of the Company and Ms. Ignatenko resigned as Treasurer, Secretary, Chief Financial Officer, principal accounting officer, and principal financial officer of the Company. Upon such resignations, Desheng Wang was appointed as the Chief Executive Officer and Secretary of the Company, Xu Tang was appointed as the President of the Company, Yan Chen was appointed as the Senior Vice President, and Messrs. Wang, Tang, and Chen accepted such appointments. On October 21, 2015, Xu Tang entered into a stock purchase agreement whereby he collectively sold 3,260,000 shares of the Company’s Common Stock to eight persons using private funds to purchase the shares. This represents 49.5% of the Company’s outstanding common stock and represents a material change in control of the Company’s ownership. Buyers include Shuqin Xu (who now owns 19.7% of the Company), Tianzeng Xu and Youjuan Xiong (who now each own 7.5% of the Company) and five other unrelated persons. To the Company’s knowledge, there are no arrangements or understandings among members of both the former and new control groups and their associates with respect to election of directors or other matters. Effective October 21, 2015, Xu Tang and Yan Chen resigned from their positions as President and Senior Vice President, respectively, of the Company. There are no disagreements between the Company and Messrs. Tang and Chen. Dr. Edward Lee has been appointed to serve as President of the Company. Also, effective October 21, 2015, Dr. Jennifer Gu and Dr. Edward Lee were appointed as directors of the Company, and Dr. Gu and Dr. Lee accepted such appointments. Thereupon, each of Xu Tang and Yan Chen resigned as directors of the Company. Accordingly, the entire Board of Directors consists of Dr. Desheng Wang, Dr. Jennifer Gu, and Dr. Edward Lee. On December 31, 2015, we filed Articles of Merger with the State of Nevada and filed a Certificate of Merger with the State of California which were the result of an agreement entered into on December 30, 2015, with a related party, Perfecular Inc., (“Perfecular”) a California corporation and FCUV Acquisition Corp., a Nevada corporation and a wholly-owned subsidiary of the Company, pursuant to which we agreed to acquire all of the issued and outstanding of 587,712 shares of Perfecular’s common stock in exchange for the issuance of 27,994,706 shares of the Company’s common stock to the shareholders of Perfecular Inc. in an exchange ratio of 47.6333 to 1. This represents approximately 80% of the outstanding shares of the Company and represents a material change in control of the Company’s ownership. Mr. Desheng Wang was the majority stockholder of Perfecular. The Company and Perfecular were entities under common control; therefore, in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) 805-50-45, the acquisition of Perfecular was accounted for as a business combination between entities under common control and treated similar to a pooling of interest transaction. Perfecular Inc. was founded in September 2009 and is headquartered in Walnut, California, and is engaged in designing certain digital sensor products and sells a broad selection of horticultural sensors and filters in North America and Europe. Change in Fiscal Year On December 11, 2015, the Board of Directors of the Company approved a change in the fiscal year end from a fiscal year end on September 30 to a calendar year end on December 31 effective immediately. The Company made the fiscal year change on a prospective basis and did not adjust operating results for prior periods. The change to the Company’s fiscal year did not impact the Company’s calendar year results for the year ended December 31, 2015. While the change has had some impact on the prior year comparability of each of the fiscal quarters and annual periods in fiscal years prior to calendar year 2016, the Company believes this impact is minimal. The Company believes this change provides numerous benefits, including aligning its reporting periods to be more consistent with peer companies.

1. Organization and Operations

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Focus Universal Inc. (the “Company”) was incorporated under the laws of the State of Nevada on December 4, 2012 (“Inception”). We are a universal smart instrument developer and manufacturer, headquartered in the Los Angeles, California metropolitan area, specializing in the development and commercialization of the novel and proprietary universal smart technologies and instruments. Universal smart technology is an innovative, commercial, off-the-shelf technology with an innovative soft hardware integrated platform. Our platform provides a unique and universal wireless solution for embedded design, industrial control, test and measurement. Our smart technology software utilizes a smartphone, computer, or a mobile device as a platform and display that communicates and works in tandem with a group of external sensors and probes manufactured by different vendors in a manner that requires the user to have little or no knowledge of their unique characteristics. Our universal smart instrument (the “Ubiquitor”) consists of a reusable foundation component which includes a wireless gateway (which allows the instrument to connect to the smartphone via Bluetooth and wifi technology), a universal smart application software (our “Application”) which is installed on the user’s smartphone allowing the sensor readouts to be monitored on the smartphone screen. The Ubiquitor also connects to a variety of individual scientific sensors that collect unique data points, from moisture, light, and airflow to other things like electricity voltage meters and a wide variety of applications. These data points are then sent wirelessly to the smartphone and the data is organized on the smartphone screen. The smartphone, foundation, and sensor readouts together perform the functions of many traditional scientific and engineering instruments and are intended to replace the traditional, wired stand-alone instruments at a fraction of their cost.

Change in Control

On December 29, 2014, Xu Tang and Desheng Wang, two non-affiliate persons, acquired 5,970,000 shares of the Company’s Common Stock from the Company’s shareholders. This represents over 90% of the Company’s outstanding common stock and therefore represents a change in control of the Company’s ownership.

Effective immediately on December 29, 2014, Ms. Popova resigned as Chief Executive Officer and President of the Company and Ms. Ignatenko resigned as Treasurer, Secretary, Chief Financial Officer, principal accounting officer, and principal financial officer of the Company. Upon such resignations, Desheng Wang was appointed as the Chief Executive Officer and Secretary of the Company, Xu Tang was appointed as the President of the Company, Yan Chen was appointed as the Senior Vice President, and Messrs. Wang, Tang, and Chen accepted such appointments.

On October 21, 2015, Xu Tang entered into a stock purchase agreement whereby he collectively sold 3,260,000 shares of the Company’s Common Stock to eight persons using private funds to purchase the shares. This represents 49.5% of the Company’s outstanding common stock and represents a material change in control of the Company’s ownership. Buyers include Shuqin Xu (who now owns 19.7% of the Company), Tianzeng Xu and Youjuan Xiong (who now each own 7.5% of the Company) and five other unrelated persons. To the Company’s knowledge, there are no arrangements or understandings among members of both the former and new control groups and their associates with respect to election of directors or other matters.

Effective October 21, 2015, Xu Tang and Yan Chen resigned from their positions as President and Senior Vice President, respectively, of the Company. There are no disagreements between the Company and Messrs. Tang and Chen. Dr. Edward Lee has been appointed to serve as President of the Company.

Also, effective October 21, 2015, Dr. Jennifer Gu and Dr. Edward Lee were appointed as directors of the Company, and Dr. Gu and Dr. Lee accepted such appointments. Thereupon, each of Xu Tang and Yan Chen resigned as directors of the Company. Accordingly, the entire Board of Directors consists of Dr. Desheng Wang, Dr. Jennifer Gu, and Dr. Edward Lee.

On December 31, 2015, we filed Articles of Merger with the State of Nevada and filed a Certificate of Merger with the State of California which were the result of an agreement entered into on December 30, 2015, with a related party, Perfecular Inc., (“Perfecular”) a California corporation and FCUV Acquisition Corp., a Nevada corporation and a wholly-owned subsidiary of the Company, pursuant to which we agreed to acquire all of the issued and outstanding of 587,712 shares of Perfecular’s common stock in exchange for the issuance of 27,994,706 shares of the Company’s common stock to the shareholders of Perfecular Inc. in an exchange ratio of 47.6333 to 1. This represents approximately 80% of the outstanding shares of the Company and represents a material change in control of the Company’s ownership. Mr. Desheng Wang was the majority stockholder of Perfecular.

The Company and Perfecular were entities under common control; therefore, in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) 805-50-45, the acquisition of Perfecular was accounted for as a business combination between entities under common control and treated similar to a pooling of interest transaction.

Perfecular Inc. was founded in September 2009 and is headquartered in Walnut, California, and is engaged in designing certain digital sensor products and sells a broad selection of horticultural sensors and filters in North America and Europe.

Change in Fiscal Year

On December 11, 2015, the Board of Directors of the Company approved a change in the fiscal year end from a fiscal year end on September 30 to a calendar year end on December 31 effective immediately.

The Company made the fiscal year change on a prospective basis and did not adjust operating results for prior periods. The change to the Company’s fiscal year did not impact the Company’s calendar year results for the year ended December 31, 2015. While the change has had some impact on the prior year comparability of each of the fiscal quarters and annual periods in fiscal years prior to calendar year 2016, the Company believes this impact is minimal.

The Company believes this change provides numerous benefits, including aligning its reporting periods to be more consistent with peer companies.