Description of Business	3 Months Ended
Mar. 31, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business	1. Description of Business Vapotherm, Inc. (the “Company”) was founded in 1993 and reincorporated under the laws of the State of Delaware in 2013. Since inception, the Company has focused on the development and commercialization of its proprietary Hi-VNI Technology products that are used to treat patients of all ages suffering from respiratory distress. The Company’s Hi-VNI Technology delivers non-invasive ventilatory support by providing heated, humidified and oxygenated air at a high velocity to patients through a comfortable small-bore nasal interface. The Company’s Precision Flow systems, which use Hi-VNI Technology, are clinically validated alternatives to, and address many limitations of, the current standard of care for the treatment of respiratory distress in a hospital setting. The Company offers four versions of its Precision Flow systems: Precision Flow Hi-VNI, Precision Flow Plus, Precision Flow Classic and Precision Flow Heliox. The Company generates revenue primarily from sales of disposable products utilized with its proprietary Precision Flow systems. The Company also generates revenue from the capital units themselves, and to a lesser extent, sales of its companion products, which include the Vapotherm Transfer Unit 2.0, the Q50 compressor and various adaptors. The Company offers different options to its hospital customers for acquiring Precision Flow capital units, ranging from the purchase of the Precision Flow capital units with payment in full at the time of purchase, to financed purchases of the Precision Flow capital units, to bundled discounts involving the placement of Precision Flow capital units for use by the customer at no upfront charge in connection with the customer’s ongoing purchase of disposable products. The Company sells Precision Flow systems to hospitals through a direct sales force in the United States and in the United Kingdom and through distributors in select other countries outside of the United States and United Kingdom. In addition, the Company utilizes clinical educators who are typically experienced users of Hi-VNI Technology and who focus on medical education efforts to facilitate adoption and increase utilization. The Company is focused on physicians, respiratory therapists and nurses who work in acute hospital settings, including the emergency department, or ED, and adult, pediatric and neonatal intensive care units (the “ICUs”). The Company’s relationship with these clinicians is particularly important, as it enables its products to follow patients through the care continuum. The Company’s Hi-VNI Technology is a first-line therapy for treating respiratory distress, which is experienced by many COVID-19 patients. The Journal of the American Medical Association published data from mainland China in April 2020 suggesting that 19% of all COVID-19 patients experience respiratory distress and require some amount of respiratory support. The Company’s hospital customers around the world are using its technology to support the respiratory distress experienced by many COVID-19 patients so that they can triage their sickest patients using the limited number of ventilators. As a result, the Company has seen a significant increase in demand for its products from both new and existing accounts, initially in Europe and the Middle East, and then later during the first quarter of 2020, in the United States. Since inception, the Company has financed its operations primarily through public offerings of its common stock, private placements of its convertible preferred stock, sales of its Precision Flow systems and amounts borrowed under its credit facilities. The Company has devoted the majority of its resources to research and development activities related to its Precision Flow systems, including regulatory initiatives and sales and marketing activities. The Company has invested heavily in its sales and marketing function by increasing the number of sales representatives and clinical educators to facilitate adoption and increase utilization of its Hi-VNI Technology products and expanded its digital marketing initiatives and medical education programs. The Company is subject to risks common to companies in the medical device industry, including, but not limited to, the successful development and commercialization of its Precision Flow products, fluctuations in operating results and financial risks, protection of proprietary knowledge and patent risks, dependence on key personnel and collaborative partners, competition, technological and manufacturing risks, customer acceptance and demand, compliance with the Food and Drug Administration and other governmental regulations, management of growth and effectiveness of marketing by the Company and by third parties. On November 16, 2018, the Company completed an initial public offering of 4,600,000 shares of common stock, which included the full exercise by the underwriters of their option to purchase 600,000 shares of common stock, at a price of $14.00 per share, which raised net proceeds of $57.4 million after deducting the underwriting discount of $4.5 million and offering expenses of $2.5 million. On February 28, 2019, the Company acquired its United Kingdom based distributor. See Note 3 “Business Combinations” to these condensed consolidated financial statements for details of this transaction. In August 2019, the Company completed a public offering of 3,570,750 shares of common stock, which included the full exercise by the underwriters of their option to purchase 465,750 shares of common stock, at a price of $14.50 per share, which raised net proceeds of $48.3 million after deducting the underwriting discount of $3.1 million and offering expenses of $0.4 million. On December 20, 2019, the Company entered into an Open Market Sales Agreement, or the ATM Agreement, with Jefferies LLC, or Jefferies, under which the Company may offer and sell its common stock having aggregate sales proceeds of up to $50.0 million from time to time through Jefferies as its sales agents. Subsequent to March 31, 2020, the Company sold 511,648 shares of common stock pursuant to the ATM Agreement for gross proceeds of $10.2 million, or $9.9 million net of commissions.

Description of Business

3 Months Ended

Mar. 31, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

1. Description of Business

Vapotherm, Inc. (the “Company”) was founded in 1993 and reincorporated under the laws of the State of Delaware in 2013. Since inception, the Company has focused on the development and commercialization of its proprietary Hi-VNI Technology products that are used to treat patients of all ages suffering from respiratory distress. The Company’s Hi-VNI Technology delivers non-invasive ventilatory support by providing heated, humidified and oxygenated air at a high velocity to patients through a comfortable small-bore nasal interface. The Company’s Precision Flow systems, which use Hi-VNI Technology, are clinically validated alternatives to, and address many limitations of, the current standard of care for the treatment of respiratory distress in a hospital setting.

The Company offers four versions of its Precision Flow systems: Precision Flow Hi-VNI, Precision Flow Plus, Precision Flow Classic and Precision Flow Heliox. The Company generates revenue primarily from sales of disposable products utilized with its proprietary Precision Flow systems. The Company also generates revenue from the capital units themselves, and to a lesser extent, sales of its companion products, which include the Vapotherm Transfer Unit 2.0, the Q50 compressor and various adaptors. The Company offers different options to its hospital customers for acquiring Precision Flow capital units, ranging from the purchase of the Precision Flow capital units with payment in full at the time of purchase, to financed purchases of the Precision Flow capital units, to bundled discounts involving the placement of Precision Flow capital units for use by the customer at no upfront charge in connection with the customer’s ongoing purchase of disposable products.

The Company sells Precision Flow systems to hospitals through a direct sales force in the United States and in the United Kingdom and through distributors in select other countries outside of the United States and United Kingdom. In addition, the Company utilizes clinical educators who are typically experienced users of Hi-VNI Technology and who focus on medical education efforts to facilitate adoption and increase utilization. The Company is focused on physicians, respiratory therapists and nurses who work in acute hospital settings, including the emergency department, or ED, and adult, pediatric and neonatal intensive care units (the “ICUs”). The Company’s relationship with these clinicians is particularly important, as it enables its products to follow patients through the care continuum.

The Company’s Hi-VNI Technology is a first-line therapy for treating respiratory distress, which is experienced by many COVID-19 patients. The Journal of the American Medical Association published data from mainland China in April 2020 suggesting that 19% of all COVID-19 patients experience respiratory distress and require some amount of respiratory support. The Company’s hospital customers around the world are using its technology to support the respiratory distress experienced by many COVID-19 patients so that they can triage their sickest patients using the limited number of ventilators. As a result, the Company has seen a significant increase in demand for its products from both new and existing accounts, initially in Europe and the Middle East, and then later during the first quarter of 2020, in the United States.

Since inception, the Company has financed its operations primarily through public offerings of its common stock, private placements of its convertible preferred stock, sales of its Precision Flow systems and amounts borrowed under its credit facilities. The Company has devoted the majority of its resources to research and development activities related to its Precision Flow systems, including regulatory initiatives and sales and marketing activities. The Company has invested heavily in its sales and marketing function by increasing the number of sales representatives and clinical educators to facilitate adoption and increase utilization of its Hi-VNI Technology products and expanded its digital marketing initiatives and medical education programs.

The Company is subject to risks common to companies in the medical device industry, including, but not limited to, the successful development and commercialization of its Precision Flow products, fluctuations in operating results and financial risks, protection of proprietary knowledge and patent risks, dependence on key personnel and collaborative partners, competition, technological and manufacturing risks, customer acceptance and demand, compliance with the Food and Drug Administration and other governmental regulations, management of growth and effectiveness of marketing by the Company and by third parties.

On November 16, 2018, the Company completed an initial public offering of 4,600,000 shares of common stock, which included the full exercise by the underwriters of their option to purchase 600,000 shares of common stock, at a price of $14.00 per share, which raised net proceeds of $57.4 million after deducting the underwriting discount of $4.5 million and offering expenses of $2.5 million.

On February 28, 2019, the Company acquired its United Kingdom based distributor. See Note 3 “Business Combinations” to these condensed consolidated financial statements for details of this transaction.

In August 2019, the Company completed a public offering of 3,570,750 shares of common stock, which included the full exercise by the underwriters of their option to purchase 465,750 shares of common stock, at a price of $14.50 per share, which raised net proceeds of $48.3 million after deducting the underwriting discount of $3.1 million and offering expenses of $0.4 million.

On December 20, 2019, the Company entered into an Open Market Sales Agreement, or the ATM Agreement, with Jefferies LLC, or Jefferies, under which the Company may offer and sell its common stock having aggregate sales proceeds of up to $50.0 million from time to time through Jefferies as its sales agents. Subsequent to March 31, 2020, the Company sold 511,648 shares of common stock pursuant to the ATM Agreement for gross proceeds of $10.2 million, or $9.9 million net of commissions.