The Company	9 Months Ended
The Company	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company NeuroPace, Inc., or the Company, was incorporated in the state of Delaware on November 19, 1997. The Company is a commercial-stage medical device company that has developed the RNS System, the only commercially available brain-responsive neuromodulation system designed for treating medically refractory focal epilepsy by delivering personalized, real-time treatment at the seizure source. The Company began commercializing its products in the United States in 2014. Initial Public Offering On April 21, 2021, the Company’s registration statement on Form S-1 (File No. 333-254663) relating to its initial public offering, or IPO, of common stock became effective. The IPO closed on April 26, 2021, at which time the Company issued 6,900,000 shares of its common stock at a price of $17.00 per share, which included the issuance of shares in connection with the exercise by the underwriters of their option to purchase up to 900,000 additional shares. The Company received an aggregate of $117.3 million in gross proceeds, before underwriting discounts and commissions and offering costs, and approximately $105.5 million in net proceeds after deducting $8.2 million in underwriting discounts and commissions and $3.6 million in offering costs. At-the-Market Equity Offering In November 2022, the Company filed a Registration Statement on Form S-3, or Shelf, with the Securities and Exchange Commission in relation to the registration of common stock, preferred stock, debt securities, warrants or any combination thereof for up to an aggregate of $150.0 million, of which $50.0 million may be issued and sold pursuant to an at-the-market, or ATM, offering program for sales of the Company’s common stock under a sales agreement, or Sales Agreement, with Leerink Partners LLC, or Leerink, (formerly SVB Securities LLC). The Company agreed to pay Leerink up to 3.0% of the gross proceeds of sales of common stock made through the Sales Agreement. The Company’s common stock would be sold at prevailing market prices at the time of the sale and, as a result, prices may vary. The Company has not issued or sold any securities pursuant to the Shelf or ATM offering program. Liquidity and Capital Resources The Company has incurred operating losses and negative cash flows from operations since its inception and has an accumulated deficit of $497.6 million as of September 30, 2023. For the nine months ended September 30, 2023 and 2022, the Company used $16.4 million and $29.0 million of cash, respectively, in its operating activities. As of September 30, 2023, the Company had cash, cash equivalents and short-term investments of $61.3 million. Historically, the Company has funded its operations principally through the sales of its products, issuance of equity securities and debt financing. The Company’s condensed financial statements have been prepared on the basis of the Company continuing as a going concern for the next 12 months. Management believes that the Company’s cash, cash equivalents and short-term investments will allow the Company to continue its planned operations for at least the next 12 months from the date of the issuance of these unaudited interim condensed financial statements. In connection with the Term Loan described in Note 6, the Company will need to be in compliance with a minimum annual net revenue covenant determined in accordance with generally accepted accounting principles of $45.0 million in the year ended December 31, 2023, and maintain a minimum cash and cash equivalents balance of $5.0 million. If the Company cannot generate sufficient revenue in the future, the Company may not be in compliance with the annual net revenue covenant and the lender may call the debt resulting in the Company immediately needing additional capital, and resulting in a going concern. The Company’s ability to raise additional capital may be adversely impacted by global economic conditions and the recent disruptions to, and volatility in, the financial markets in the United States and worldwide. If the Company is unable to raise capital when needed, it will need to delay, limit, reduce or terminate planned commercialization or product development activities in order to reduce costs. As of September 30, 2023, the Company was in compliance with all covenants of the Term Loan. The global spread of COVID-19, including the different COVID-19 variants and measures introduced by local, state and federal governments to contain COVID-19 and mitigate its public health effects, have significantly impacted the global economy and negatively impacted the Company’s business. Beginning in March 2020, the Company’s net sales were negatively impacted by the COVID-19 pandemic as hospitals delayed or canceled elective procedures. The decrease in hospital admission rates and elective surgeries reduced both the number of patients being evaluated for treatment with and demand for elective procedures using the Company's RNS System. By the second half of 2022, the impact of the pandemic on the Company’s revenue had diminished. However, the future impact of COVID-19 on the Company’s business, financial condition and results of operations is dependent on future developments, including the potential emergence of new COVID-19 variants and spikes in COVID-19 cases, which remain highly uncertain and cannot be predicted.