Formation and Business of the Company	12 Months Ended
Dec. 31, 2022
Balance Sheet Components [Abstract]
Formation and Business of the Company	1. Formation and Business of the Company The Company Silk Road Medical, Inc., or the Company, was incorporated in the state of Delaware on March 21, 2007. The Company has developed a technologically advanced, minimally-invasive solution for patients with carotid artery disease who are at risk for stroke. The Company’s portfolio of products enable a procedure referred to as transcarotid artery revascularization, or TCAR, that combines the benefits of endovascular techniques and surgical principles. The Company manufactures and sells in the United States its portfolio of TCAR products which are designed to provide direct access to the carotid artery, effective reduction in stroke risk throughout the procedure, and long-term restraint of carotid plaque. The Company commercialized its products in the United States beginning in late 2015. Liquidity In the course of its activities, the Company has incurred losses and negative cash flows from operations since its inception. As of December 31, 2022, the Company had an accumulated deficit of $343,712,000. The Company expects to incur losses for the foreseeable future. The Company believes that its cash and cash equivalents and available-for-sale securities of $213,674,000 as of December 31, 2022, as well as its expected revenues will provide sufficient funds to allow the Company to fund its planned current operations for the next 12 months from the issuance of these financial statements. Public Offerings In October 2022, the Company completed an underwritten public offering of 2,674,419 shares of its common stock at a public offering price of $43.00 per share. The shares include the full exercise of the underwriters’ option to purchase an additional 348,837 shares pursuant to the underwriting agreement. The Company received cash proceeds of approximately $108,992,000 after deducting underwriting discounts and commissions of approximately $5,750,000 and expenses of approximately $258,000. In May 2020, the Company completed an underwritten public offering of 6,808,154 shares of its common stock, of which 1,923,076 shares were offered for sale by the Company and the remaining 4,885,078 shares were offered for sale by certain selling stockholders, at a public offering price of $39.00 per share. The Company received cash proceeds of approximately $70,543,000 after deducting underwriting discounts and commissions of approximately $3,750,000 and expenses of approximately $707,000. Also, in May 2020, the underwriters fully exercised their option to purchase 1,021,223 additional shares of common stock from the selling stockholders. The Company did not receive any of the proceeds from the sale of the shares of its common stock by the selling stockholders.

Formation and Business of the Company

12 Months Ended

Dec. 31, 2022

1. Formation and Business of the Company

The Company

Silk Road Medical, Inc., or the Company, was incorporated in the state of Delaware on March 21, 2007. The Company has developed a technologically advanced, minimally-invasive solution for patients with carotid artery disease who are at risk for stroke. The Company’s portfolio of products enable a procedure referred to as transcarotid artery revascularization, or TCAR, that combines the benefits of endovascular techniques and surgical principles. The Company manufactures and sells in the United States its portfolio of TCAR products which are designed to provide direct access to the carotid artery, effective reduction in stroke risk throughout the procedure, and long-term restraint of carotid plaque. The Company commercialized its products in the United States beginning in late 2015.

Liquidity

In the course of its activities, the Company has incurred losses and negative cash flows from operations since its inception. As of December 31, 2022, the Company had an accumulated deficit of $343,712,000. The Company expects to incur losses for the foreseeable future. The Company believes that its cash and cash equivalents and available-for-sale securities of $213,674,000 as of December 31, 2022, as well as its expected revenues will provide sufficient funds to allow the Company to fund its planned current operations for the next 12 months from the issuance of these financial statements.

Public Offerings

In October 2022, the Company completed an underwritten public offering of 2,674,419 shares of its common stock at a public offering price of $43.00 per share. The shares include the full exercise of the underwriters’ option to purchase an additional 348,837 shares pursuant to the underwriting agreement. The Company received cash proceeds of approximately $108,992,000 after deducting underwriting discounts and commissions of approximately $5,750,000 and expenses of approximately $258,000.

In May 2020, the Company completed an underwritten public offering of 6,808,154 shares of its common stock, of which 1,923,076 shares were offered for sale by the Company and the remaining 4,885,078 shares were offered for sale by certain selling stockholders, at a public offering price of $39.00 per share. The Company received cash proceeds of approximately $70,543,000 after deducting underwriting discounts and commissions of approximately $3,750,000 and expenses of approximately $707,000. Also, in May 2020, the underwriters fully exercised their option to purchase 1,021,223 additional shares of common stock from the selling stockholders. The Company did not receive any of the proceeds from the sale of the shares of its common stock by the selling stockholders.