Nature of the Business	9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]
Nature of the Business	1. Nature of the Business Clene Inc. (formerly Chelsea Worldwide Inc.) (the “Company,” “we,” “us,” or similar such references) is a clinical-stage pharmaceutical company pioneering the discovery, development, and commercialization of novel clean-surfaced nanotechnology therapeutics. We have developed an electro-crystal-chemistry drug development platform which enables production of concentrated, stable, highly active, clean-surfaced nanocrystal suspensions. We have multiple drug assets currently in development for applications in neurology, infectious disease, and oncology. Our efforts are currently focused on addressing the high unmet medical needs in two areas: first, those related to central nervous system disorders including Multiple Sclerosis (“MS”), Parkinson’s Disease (“PD”) and Amyotrophic Lateral Sclerosis (“ALS”); and second, those related to COVID-19, a highly infectious viral respiratory disease with serious and sometimes fatal co-morbidities. Our patented electro-crystal-chemistry manufacturing platform further enables us to develop very low concentration dietary supplements to advance the health and well-being of broad populations. These dietary supplements can vary greatly and include nanocrystals of varying composition, shapes and sizes as well as ionic solutions with diverse metallic constituents. Dietary supplements are marketed and distributed through our wholly owned subsidiary, dOrbital, Inc. (“dOrbital”), or through an exclusive license with 4Life Research LLC (“4Life”), a related party (see Note 20). The accompanying condensed consolidated financial statements include the accounts of the Company and our wholly-owned subsidiaries, Clene Nanomedicine, Inc. (“Clene Nanomedicine”), a subsidiary incorporated in Delaware, Clene Australia Pty Ltd (“Clene Australia”), a subsidiary incorporated in Australia, and dOrbital, Inc., a subsidiary incorporated in Delaware, after elimination of all intercompany accounts and transactions. The wholly-owned subsidiary, Clene Netherlands B.V. (“Clene Netherlands”) was established on April 21, 2021 and has no financial positions or operations to date. *Registration Statements* On February 16, 2021, we filed a registration statement on Form S-1 (file number 333-253173) to register 4,541,481 shares of Clene Inc. common stock (“Common Stock”) underlying outstanding warrants that we have previously issued, among which 2,517,500 warrants (the “Public Warrants”) and 904,231 warrants (the “Kensington Warrants”) were originally issued by Tottenham Acquisition I Limited (“Tottenham”) and Clene Nanomedicine, respectively, prior to the closing of the Reverse Recapitalization, and 2,239,500 warrants (the “December 2020 PIPE Warrants”) were issued as part of a private placement (the “December 2020 PIPE”) in connection with the closing of the Reverse Recapitalization. We will receive aggregate proceeds of $30.7 million if all of these warrants are exercised. On April 19, 2021, the registration statement was declared effective by the Securities and Exchange Commission (the “SEC”). In connection with the registration statement on Form S-1, we incurred $0 and $27 thousand of certain offering costs during the three and nine months ended September 30, 2021, respectively, recognized as an expense within general and administrative expenses in the condensed consolidated statement of operations and comprehensive income (loss) during the three and nine months ended September 30, 2021. As of September 30, 2021, the Company received aggregate proceeds of $10.0 thousand from the exercise of certain warrants, representing 2,004,500 December 2020 PIPE Warrants at an offering price per share of $0.01. On July 22, 2021, we filed a registration statement on Form S-1 (file number 333-258098) to register 1,140,731 shares of Common Stock underlying outstanding warrants that we have previously issued, among which 1,024,880 warrants (the “AK Warrants”, and collectively with the Kensington Warrants, the “Founder Warrants”) were originally issued by Clene Nanomedicine prior to the Reverse Recapitalization in April 2013 and 115,851 warrants (the “Avenue Warrants”) were issued pursuant to a loan agreement (the “2021 Avenue Loan”) with Avenue Venture Opportunities Fund, L.P. (“Avenue”) (see Note 8). We will receive aggregate proceeds of $3.0 million if all of these warrants are exercised. In addition, the registration statement on Form S-1 registered 960,540 shares of Common Stock, issued in a private placement in May 2021 (the “May 2021 PIPE”). We will not receive any proceeds from the possible sale of these shares by the selling shareholders. On August 2, 2021, the registration statement was declared effective by the SEC. In connection with the registration statement on Form S-1, we incurred an immaterial amount of certain offering costs, which were recognized as an expense within general and administrative expenses in the condensed consolidated statements of operations and comprehensive income (loss) during the three and nine months ended September 30, 2021. *Liquidity* We have incurred significant losses and negative cash flows from operations since our inception. We incurred a net loss of $14.2 million for the nine months ended September 30, 2021. We incurred net losses of $10.3 million and $20.1 million for the three and nine months ended September 30, 2020, respectively. As of September 30, 2021, our cash totaled $60.6 million, and our accumulated deficit was $167.7 million. As of December 31, 2020, our cash totaled $59.3 million, and our accumulated deficit was $153.6 million. We had net cash used in operating activities of $25.0 million and $13.1 million for the nine months ended September 30, 2021 and 2020, respectively. Prior to the Reverse Recapitalization, Clene Nanomedicine’s operations were financed through the issuance of equity instruments and the issuance of convertible promissory notes. Subsequent to the Reverse Recapitalization, we have obtained additional liquidity through a term loan and private placements of equity instruments. We have not generated significant revenues to date and do not anticipate generating any significant revenues unless we successfully complete development and obtain regulatory approval for our drugs or for our COVID-19 study. We expect to incur additional losses in the future to fund our operations and conduct product research and development and we recognize the need to raise additional capital to fully implement our business plan. Additionally, we may attempt to negotiate a collaboration agreement with a third party for development and commercialization of a drug candidate, which may provide upfront and milestone payments to reduce our spending going forward. We expect to continue investing in product development, sales and marketing and customer support for our products. The long-term continuation of our business plan is dependent upon the generation of sufficient revenues from our products to offset expenses and capital expenditures. In the event that we do not generate sufficient revenues and are unable to obtain funding, we will be forced to delay, reduce, or eliminate some or all of our research and development programs, product portfolio expansion, commercialization efforts, or capital expenditures, which could adversely affect our business prospects, ability to meet long-term liquidity needs, or we may be unable to continue operations. We expect that the cash on hand as of September 30, 2021 will be sufficient to fund our operations for a period extending beyond twelve months from the date these condensed consolidated financial statements for the three and nine months ended September 30, 2021 were issued. *Impact of the COVID-19 Pandemic* The COVID-19 pandemic, which began in December 2019 and has spread worldwide, has caused many governments to implement measures to slow the spread of the outbreak. The outbreak and government measures taken in response have had a significant impact, both direct and indirect, on businesses and commerce, as worker shortages have occurred, supply chains have been disrupted, and facilities and production have been suspended. The future progression of the pandemic and its effects on our business and operations remains uncertain. The COVID-19 pandemic may affect our ability to initiate and complete preclinical studies, delay the initiation of future clinical trials, disrupt regulatory activities, or have other adverse effects on our business and operations. In particular, the Company and our clinical research organizations (“CROs”) may face disruptions that may affect our ability to initiate and complete preclinical studies, manufacturing disruptions, and delays at clinical trial sites. The pandemic has already caused significant disruptions in the financial markets, and may continue to cause such disruptions, which could impact our ability to raise additional funds to support our operations. Moreover, the pandemic has significantly impacted economies worldwide and could result in adverse effects on our business and operations. We are monitoring the potential impact of the COVID-19 pandemic on our business and financial statements. While the COVID-19 pandemic has led to various research restrictions and paused certain of our clinical trials, these impacts have been temporary and to date we have not experienced material business disruptions or incurred impairment losses in the carrying values of our assets as a result of the pandemic and we are not aware of any specific related event or circumstance that would require us to revise the estimates reflected in these condensed consolidated financial statements. The extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations, cash flows, and financial condition, including planned and future clinical trials and research and development costs, will depend on future developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19, the actions taken to contain or treat it, and the duration and intensity of the related effects.

Nature of the Business

9 Months Ended

Sep. 30, 2021

1. Nature of the Business

Clene Inc. (formerly Chelsea Worldwide Inc.) (the “Company,” “we,” “us,” or similar such references) is a clinical-stage pharmaceutical company pioneering the discovery, development, and commercialization of novel clean-surfaced nanotechnology therapeutics. We have developed an electro-crystal-chemistry drug development platform which enables production of concentrated, stable, highly active, clean-surfaced nanocrystal suspensions. We have multiple drug assets currently in development for applications in neurology, infectious disease, and oncology. Our efforts are currently focused on addressing the high unmet medical needs in two areas: first, those related to central nervous system disorders including Multiple Sclerosis (“MS”), Parkinson’s Disease (“PD”) and Amyotrophic Lateral Sclerosis (“ALS”); and second, those related to COVID-19, a highly infectious viral respiratory disease with serious and sometimes fatal co-morbidities. Our patented electro-crystal-chemistry manufacturing platform further enables us to develop very low concentration dietary supplements to advance the health and well-being of broad populations. These dietary supplements can vary greatly and include nanocrystals of varying composition, shapes and sizes as well as ionic solutions with diverse metallic constituents. Dietary supplements are marketed and distributed through our wholly owned subsidiary, dOrbital, Inc. (“dOrbital”), or through an exclusive license with 4Life Research LLC (“4Life”), a related party (see Note 20).

The accompanying condensed consolidated financial statements include the accounts of the Company and our wholly-owned subsidiaries, Clene Nanomedicine, Inc. (“Clene Nanomedicine”), a subsidiary incorporated in Delaware, Clene Australia Pty Ltd (“Clene Australia”), a subsidiary incorporated in Australia, and dOrbital, Inc., a subsidiary incorporated in Delaware, after elimination of all intercompany accounts and transactions. The wholly-owned subsidiary, Clene Netherlands B.V. (“Clene Netherlands”) was established on April 21, 2021 and has no financial positions or operations to date.

Registration Statements

On February 16, 2021, we filed a registration statement on Form S-1 (file number 333-253173) to register 4,541,481 shares of Clene Inc. common stock (“Common Stock”) underlying outstanding warrants that we have previously issued, among which 2,517,500 warrants (the “Public Warrants”) and 904,231 warrants (the “Kensington Warrants”) were originally issued by Tottenham Acquisition I Limited (“Tottenham”) and Clene Nanomedicine, respectively, prior to the closing of the Reverse Recapitalization, and 2,239,500 warrants (the “December 2020 PIPE Warrants”) were issued as part of a private placement (the “December 2020 PIPE”) in connection with the closing of the Reverse Recapitalization. We will receive aggregate proceeds of $30.7 million if all of these warrants are exercised. On April 19, 2021, the registration statement was declared effective by the Securities and Exchange Commission (the “SEC”). In connection with the registration statement on Form S-1, we incurred $0 and $27 thousand of certain offering costs during the three and nine months ended September 30, 2021, respectively, recognized as an expense within general and administrative expenses in the condensed consolidated statement of operations and comprehensive income (loss) during the three and nine months ended September 30, 2021. As of September 30, 2021, the Company received aggregate proceeds of $10.0 thousand from the exercise of certain warrants, representing 2,004,500 December 2020 PIPE Warrants at an offering price per share of $0.01.

On July 22, 2021, we filed a registration statement on Form S-1 (file number 333-258098) to register 1,140,731 shares of Common Stock underlying outstanding warrants that we have previously issued, among which 1,024,880 warrants (the “AK Warrants”, and collectively with the Kensington Warrants, the “Founder Warrants”) were originally issued by Clene Nanomedicine prior to the Reverse Recapitalization in April 2013 and 115,851 warrants (the “Avenue Warrants”) were issued pursuant to a loan agreement (the “2021 Avenue Loan”) with Avenue Venture Opportunities Fund, L.P. (“Avenue”) (see Note 8). We will receive aggregate proceeds of $3.0 million if all of these warrants are exercised. In addition, the registration statement on Form S-1 registered 960,540 shares of Common Stock, issued in a private placement in May 2021 (the “May 2021 PIPE”). We will not receive any proceeds from the possible sale of these shares by the selling shareholders. On August 2, 2021, the registration statement was declared effective by the SEC. In connection with the registration statement on Form S-1, we incurred an immaterial amount of certain offering costs, which were recognized as an expense within general and administrative expenses in the condensed consolidated statements of operations and comprehensive income (loss) during the three and nine months ended September 30, 2021.

Liquidity

We have incurred significant losses and negative cash flows from operations since our inception. We incurred a net loss of $14.2 million for the nine months ended September 30, 2021. We incurred net losses of $10.3 million and $20.1 million for the three and nine months ended September 30, 2020, respectively. As of September 30, 2021, our cash totaled $60.6 million, and our accumulated deficit was $167.7 million. As of December 31, 2020, our cash totaled $59.3 million, and our accumulated deficit was $153.6 million. We had net cash used in operating activities of $25.0 million and $13.1 million for the nine months ended September 30, 2021 and 2020, respectively.

Prior to the Reverse Recapitalization, Clene Nanomedicine’s operations were financed through the issuance of equity instruments and the issuance of convertible promissory notes. Subsequent to the Reverse Recapitalization, we have obtained additional liquidity through a term loan and private placements of equity instruments. We have not generated significant revenues to date and do not anticipate generating any significant revenues unless we successfully complete development and obtain regulatory approval for our drugs or for our COVID-19 study. We expect to incur additional losses in the future to fund our operations and conduct product research and development and we recognize the need to raise additional capital to fully implement our business plan. Additionally, we may attempt to negotiate a collaboration agreement with a third party for development and commercialization of a drug candidate, which may provide upfront and milestone payments to reduce our spending going forward.

We expect to continue investing in product development, sales and marketing and customer support for our products. The long-term continuation of our business plan is dependent upon the generation of sufficient revenues from our products to offset expenses and capital expenditures. In the event that we do not generate sufficient revenues and are unable to obtain funding, we will be forced to delay, reduce, or eliminate some or all of our research and development programs, product portfolio expansion, commercialization efforts, or capital expenditures, which could adversely affect our business prospects, ability to meet long-term liquidity needs, or we may be unable to continue operations.

We expect that the cash on hand as of September 30, 2021 will be sufficient to fund our operations for a period extending beyond twelve months from the date these condensed consolidated financial statements for the three and nine months ended September 30, 2021 were issued.

Impact of the COVID-19 Pandemic

The COVID-19 pandemic, which began in December 2019 and has spread worldwide, has caused many governments to implement measures to slow the spread of the outbreak. The outbreak and government measures taken in response have had a significant impact, both direct and indirect, on businesses and commerce, as worker shortages have occurred, supply chains have been disrupted, and facilities and production have been suspended. The future progression of the pandemic and its effects on our business and operations remains uncertain. The COVID-19 pandemic may affect our ability to initiate and complete preclinical studies, delay the initiation of future clinical trials, disrupt regulatory activities, or have other adverse effects on our business and operations. In particular, the Company and our clinical research organizations (“CROs”) may face disruptions that may affect our ability to initiate and complete preclinical studies, manufacturing disruptions, and delays at clinical trial sites. The pandemic has already caused significant disruptions in the financial markets, and may continue to cause such disruptions, which could impact our ability to raise additional funds to support our operations. Moreover, the pandemic has significantly impacted economies worldwide and could result in adverse effects on our business and operations.

We are monitoring the potential impact of the COVID-19 pandemic on our business and financial statements. While the COVID-19 pandemic has led to various research restrictions and paused certain of our clinical trials, these impacts have been temporary and to date we have not experienced material business disruptions or incurred impairment losses in the carrying values of our assets as a result of the pandemic and we are not aware of any specific related event or circumstance that would require us to revise the estimates reflected in these condensed consolidated financial statements. The extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations, cash flows, and financial condition, including planned and future clinical trials and research and development costs, will depend on future developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19, the actions taken to contain or treat it, and the duration and intensity of the related effects.