Summary of Significant Accounting Policies | 2. Summary of Significant Accounting Policies Use of Estimates The Company’s financial statements have been prepared in conformity with U.S. GAAP. The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, management evaluates its estimates, including those related to revenue recognition, fair value of assets and liabilities, inventory, income taxes and stock-based compensation. Actual results could differ from those estimates and assumptions. Cash Equivalents Cash equivalents consist of short-term, highly liquid investments with original maturities of three months or less from the date of purchase. Cash equivalents consist primarily of amounts invested in money market funds. Restricted Cash Restricted cash represents a certificate of deposit held at a financial institution as collateral for a letter of credit related to the Company’s facility lease in San Francisco, California. Fair Value of Financial Instruments The carrying amounts of the Company’s financial instruments, including cash equivalents, short-term investments, accounts receivable and accounts payable, approximate fair value due to their relatively short maturities. As of June 30, 2017 and December 31, 2016, based on Level 2 inputs and the borrowing rates available to the Company for loans with similar terms and consideration of the Company’s credit risk, the carrying value of the Company’s long-term debt approximates its fair value. Customer Concentration Significant customers are those which represent 10% or more of the Company’s total revenue for each period presented in the condensed statements of operations and comprehensive loss or 10% or more of the Company’s net accounts receivable balance at each respective balance sheet date. As of and for the year ended December 31, 2016 and as of and for the three and six months ended June 30, 2017 and 2016, the Company had no customers that represented 10% or more of its revenue or accounts receivable balances. Revenue Recognition The Company’s revenue is generated from the sale of its products to hospitals and medical centers through direct sales representatives and independent sales agents. The Company recognizes revenue when all of the following criteria are met: persuasive evidence of an arrangement exists; the sales price is fixed or determinable; collection of the relevant receivable is reasonably assured at the time of sale; and delivery has occurred. The Company recognizes revenue when title to the goods and risk of loss transfers to the customer, which is upon shipment of the product under the Company’s standard terms and conditions. Shipping and handling costs billed to the customer are recorded in revenue. Segment Reporting The Company manages its operations as a single operating segment for the purposes of assessing performance and making operating decisions. All of the Company’s assets are maintained in the United States. The Company derives the majority of its revenue from sales to customers in the United States, based upon the billing address of the customer. Net loss per Common Share Basic net loss per common share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period, without consideration of potentially dilutive securities. Diluted net loss per common share is the same as basic net loss per common share since the effect of potentially dilutive securities are anti-dilutive. Shares subject to repurchase are excluded from the weighted-average shares. Recent Accounting Pronouncements · In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2014‑09, Revenue from Contracts with Customers (Topic 606) , which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition . This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, FASB issued ASU No. 2015‑14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , which effectively delayed the adoption date by one year, to an effective date for public entities for annual and interim periods beginning after December 15, 2017. · In March 2016, the FASB issued ASU No. 2016‑08, Revenue from Contracts with Customers (Topic 606): Principal Versus Agent Considerations (Reporting Revenue Gross Versus Net), to clarify certain aspects of the principal-versus-agent guidance in its new revenue recognition standard. · In April 2016 the FASB issued ASU No. 2016‑10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing to clarify on how to identify the performance obligations and the licensing implementation guidance in its new revenue recognition standard. · In May 2016, the FASB issued ASU No. 2016‑12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, to address certain issues identified by the Transition Resource Group, (the “TRG”) in the guidance on assessing collectability, presentation of sales tax, noncash consideration, and completed contracts and contracts modifications at transition. The Company is in the process of evaluating the impact of the new revenue guidance on its financial statements. · In July 2015, the FASB issued ASU No. 2015‑11, Inventory (Topic 330): Simplifying the Measurement of Inventory , which permits companies to measure inventory at the lower of cost and realizable value. ASU 2015‑11 applies to all business entities and is effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2016. The adoption of this standard in the first quarter of 2017 did not have a material impact on the Company’s financial statements. · In January 2016, the FASB issued ASU No. 2016‑01, Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825) , which addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. ASU No. 2016‑01 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2016. The adoption of this standard in the first quarter of 2017 did not have a material impact on the Company’s financial statements. · In February 2016, the FASB issued ASU No. 2016‑02— Leases (“ASC 842”), which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. ASC 842 supersedes the previous leases standard, ASC 840 Leases . The standard is effective on January 1, 2019, with early adoption permitted. The Company is in the process of evaluating the impact of this new guidance on its financial statements. · In March 2016 the FASB issued ASU No. 2016‑09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting . This update simplifies the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. ASU No. 2016‑09 is effective for public entities for annual periods beginning after December 15, 2016. As a result of adopting ASU No. 2016‑09, the Company has made an accounting policy election to account for forfeitures as they occur. This change has been applied on a modified retrospective basis, with no material impacts on the Company’s financial statements. The adoption of ASU No. 2016‑09 also requires excess tax benefits and tax deficiencies be recorded in the income statement as opposed to additional paid‑in capital when the awards vest or are settled, and has been applied on a prospective basis with no impact on the financial statements as of and for the three and six months ended June 30, 2017. As a result of the adoption, the Company's increased its total NOLs by $1.0 million on January 1, 2017 related to deferred tax assets that arose directly from tax deductions related to equity compensation greater than compensation recognized for financial reporting purposes. This amount is fully offset by the valuation allowance. The adoption of ASU No. 2016‑09 related to the accounting for minimum statutory withholding tax requirements and cash paid by an employer when directly withholding shares for tax-withholding purposes had no impact on the Company's current consolidated financial statements or on any prior period financial statements presented. · In June 2016, the FASB issued ASU No. 2016‑13, Measurement of Credit Losses on Financial Statements (Topic 326) . This update provides financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The update replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU No. 2016‑13 is effective for public entities for annual periods beginning after December 15, 2019. The Company is in the process of evaluating the impact of this new guidance on its financial statements. · In August 2016, the FASB issued ASU No. 2016‑15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force) . The new guidance is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. This update addresses the following eight specific cash flow issues: debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (“COLIs”) (including bank-owned life insurance policies (“BOLIs”); distributions received from equity method investees; beneficial “interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU No. 2016‑15 is effective for public entities for annual periods beginning after December 15, 2017. The Company is in the process of evaluating the impact of this new guidance on its financial statements. · In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The amendments in this Update require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company is in the process of evaluating the impact of this new guidance on its financial statements. |