ORGANIZATION AND DESCRIPTION OF BUSINESS	3 Months Ended
ORGANIZATION AND DESCRIPTION OF BUSINESS	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND DESCRIPTION OF BUSINESS	ORGANIZATION AND DESCRIPTION OF BUSINESS System1, Inc. and subsidiaries (“System1” or the “Company”) operates an omnichannel customer acquisition platform, delivering high-intent customers to advertisers and selling antivirus software packages to end user customers. The Company provides its omnichannel customer acquisition platform services through its proprietary responsive acquisition marketing platform (“RAMP”). Operating seamlessly across major advertising networks and advertising category verticals to acquire users, RAMP allows the Company to monetize such users through its relationships with third party advertisers and advertising networks (“Advertising Partners”). Through RAMP, third party advertising platforms and publishers (“Network Partners”) send user traffic to, and monetize user traffic on, the Company’s owned and operated websites. RAMP operates across the Company’s network of owned and operated websites and related products, allowing it to monetize user traffic that it sources from various acquisition marketing channels, including Google, Facebook, Taboola and Zemanta. The Company, through Protected.net, also provides antivirus software solutions, offering customers a single packaged solution that provides protection and reporting to the end user. The Company delivers its antivirus software solutions directly to end-user customers around the world. The antivirus software solutions product offering comprises a core security package with varying levels of extra protection based on a customer's specific needs. The software is sold in either a monthly or annual subscription predominantly through the flagship brand TotalAV. Going Concern Starting in the third quarter of 2022, the Company experienced declining cash flows and financial performance as a result of deteriorating macroeconomic conditions, resulting in reductions in both advertiser and overall consumer demand for the Company's marketing services. As of March 31, 2023, the Company had cash on hand of $8,267. The declining cash flows and financial performance raise substantial doubt regarding the Company's ability to continue as a going concern for a period of one year following the date that these condensed consolidated financial statements are issued. In response to the declining cash flows, the Company implemented a plan to raise additional financing. On April 10, 2023, the Company entered into an incremental revolver note (“2023 Revolving Note”) with related parties for $20,000. The Company believes that the proceeds from the 2023 Revolving Note, along with available cash on hand and other cash flows from operations, will be sufficient to maintain liquidity and operations in the ordinary course for the next 12 months following the date of this filing. The Company believes these mitigation plans alleviate the substantial doubt about its ability to continue as a going concern. The available balance under the 2023 Revolving Note was $15,000 as of the date that these condensed consolidated financial statements are issued. The condensed consolidated financial statements do not include any adjustments that might result from the outcome of these uncertainties. Accordingly, the condensed consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.