Business and Basis of Presentation (Policies)	6 Months Ended
Business and Basis of Presentation (Policies)	Jun. 30, 2017
Accounting Policies [Abstract]
Our Business-An Overview	Our Business-An Overview NeuroMetrix, Inc. or the Company, is a commercial stage, innovation driven healthcare company combining bioelectrical and digital medicine to address chronic health conditions including chronic pain, sleep disorders, and diabetes. The Company’s lead product is Quell, an over-the-counter wearable therapeutic device for chronic pain. Quell is integrated into a digital health platform that helps patients optimize their therapy and decrease the impact of chronic pain on their quality of life. The Company also markets DPNCheck®, a rapid point-of-care test for diabetic neuropathy, which is the most common long-term complication of Type 2 diabetes. The Company maintains an active research effort and has several pipeline programs. The Company is located in Waltham, Massachusetts and was founded as a spinoff from the Harvard-MIT Division of Health Sciences and Technology in 1996. During the first quarter of 2017, the Company completed an equity offering, detailed in Note 9 to the financial statements, which resulted in gross proceeds of $7.0 million and approximately $6.3 million after deducting fees and expenses. In July 2017, the Company entered into a second $7.0 million equity offering, in which the first tranche of $3.5 million closed on July 12, 2017, and in which a second tranche of $3.5 million is subject to shareholder approval and expected to close late in September of 2017 (see footnote 11). The accompanying financial statements have been prepared on a basis which assumes that the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the normal course of business. The Company has suffered recurring losses from operations and negative cash flows from operating activities. At June 30, 2017, the Company had an accumulated deficit of $184.9 million. The Company held cash and cash equivalents of $3.6 million as of June 30, 2017. The Company believes that these resources, cash proceeds from the second 2017 equity offering, and the cash to be generated from expected product sales will be sufficient to meet its projected operating requirements into the second quarter of 2018. The Company continues to face significant challenges and uncertainties and, as a result, the Company’s available capital resources may be consumed more rapidly than currently expected due to (a) decreases in sales of the Company’s products and the uncertainty of future revenues; (b) changes the Company may make to the business that affect ongoing operating expenses; (c) changes the Company may make in its business strategy; (d) regulatory developments affecting the Company’s existing products and products under development; (e) changes the Company may make in its research and development spending plans; and (f) other items affecting the Company’s forecasted level of expenditures and use of cash resources. Accordingly, the Company will need to raise additional funds to support its operating and capital needs in the second quarter of 2018 and beyond. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. The Company intends to obtain additional funding through public or private financing, collaborative arrangements with strategic partners, or through additional credit lines or other debt financing sources to increase the funds available to fund operations. However, the Company may not be able to secure such financing in a timely manner or on favorable terms, if at all. Furthermore, if the Company issues equity or debt securities to raise additional funds, its existing stockholders may experience dilution, and the new equity or debt securities may have rights, preferences and privileges senior to those of the Company’s existing stockholders. If the Company raises additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to its products or proprietary technologies, or grant licenses on terms that are not favorable to the Company. Without additional funds, the Company may be forced to delay, scale back or eliminate some of its sales and marketing efforts, research and development activities, or other operations and potentially delay product development in an effort to provide sufficient funds to continue its operations. If any of these events occurs, the Company’s ability to achieve its development and commercialization goals would be adversely affected.
Unaudited Interim Financial Statements	Unaudited Interim Financial Statements The accompanying unaudited balance sheet as of June 30, 2017, unaudited statements of operations for the quarters and six months ended June 30, 2017 and 2016 and the unaudited statements of cash flows for the six months ended June 30, 2017 and 2016 have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. The accompanying balance sheet as of December 31, 2016 has been derived from audited financial statements prepared at that date, but does not include all disclosures required by accounting principles generally accepted in the United States of America. In the opinion of management, the financial statements include all normal and recurring adjustments considered necessary for a fair statement of the Company’s financial position and operating results. Operating results for the quarters and six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2016 included in the Company’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission, or the SEC, on February 9, 2017 (File No. 001-33351), or the Company’s 2016 Form 10-K.
Revenues	Revenues The Company recognizes revenue when the following criteria have been met: persuasive evidence of an arrangement exists, delivery has occurred and risk of loss has passed, the seller’s price to the buyer is fixed or determinable, and collection is reasonably assured. Revenues associated with the Company’s medical devices and consumables are generally recognized upon shipment, assuming all other revenue recognition criteria have been met. Revenue associated with shipments made to distributors who have the right to return any unsold product is recognized once the product is sold by the distributor to the end customer (i.e. under a sell-through model), assuming all other revenue recognition criteria have been met. Cash received prior to all the conditions for revenue recognition being met is recorded as deferred revenue. Deferred revenue recorded prior to cash receipt is recorded as an offset to accounts receivable. As of June 30, 2017 the total value of shipments made to sell-through distributors but not yet sold through to end customers totaled $2,031,262. Of this total, $1,371,989 was recorded as a reduction to accounts receivable and $659,273 was recorded in deferred revenue, as cash had been received. As of December 31, 2016, the total value of shipments that had been made to sell-through distributors but had not yet been sold through to end customers totaled $1,247,545. Of this total, $619,309 was recorded as a reduction to accounts receivable and $628,236 was recorded in deferred revenue, as cash had been received. Related costs of goods sold of $1,276,207 and $910,595 have been deferred and recorded in prepaid expenses and other current assets as of June 30, 2017 and December 31, 2016, respectively. Revenue recognition involves judgments, including assessments of expected returns from customers who have the right to return product for any reason under 30 days or 60 days rights of return. Where the Company can reasonably estimate future returns, it recognizes revenues and records as a reduction of revenue a provision for estimated returns. The Company analyzes various factors, including its historical product returns in arriving at this judgment. Changes in judgments or estimates could materially impact the timing and amount of revenues and costs recognized. The provision for expected returns recorded in accrued expense was $413,871 and $488,200 as of June 30, 2017 and December 31, 2016, respectively. Accounts receivable are recorded net of the allowance for doubtful accounts which represents the Company’s best estimate of probable credit losses. Allowance for doubtful accounts was $25,000 as of June 30, 2017 and December 31, 2016. One customer accounted for 16% of total revenue for the quarters and six months ended June 30, 2017. A different customer accounted for approximately 11% and 12% of total revenue for the quarter and six-months ended June 30, 2016, respectively. Three customers accounted for 58% and two customers accounted for 41% of accounts receivables as of June 30, 2017 and December 31, 2016, respectively.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during reporting periods. Actual results could differ from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update No. 2016-2, Leases (Topic 842) (“ASU 2016-2”). ASU 2016-2 requires that lessees will need to recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. The provisions of this guidance are effective for annual periods beginning after December 31, 2018, and for interim periods therein. The Company is in the process of evaluating this standard and assessing the impact, if any, ASU 2016-2 will have on the Company’s financial statements. In May 2014, the FASB and the International Accounting Standards Board (“IASB”) jointly issued Accounting Standards Update (“ASU”) No. 2014-9, Revenue from Contracts with Customers (“ASU 2014-9”), a comprehensive revenue recognition standard that will supersede nearly all existing revenue recognition guidance. The objective of ASU 2014-9 is that a company will recognize revenue when it transfers promised 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. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers, which delayed the effective date of the new standard from January 1, 2017 to January 1, 2018. An entity can elect to adopt ASU 2014-9 using one of two methods, either full retrospective adoption to each prior reporting period, or recognizing the cumulative effect of adoption at the date of initial application. In March 2016, the FASB issued ASU No. 2016-8, Principal Versus Agent Considerations (Reporting Revenue Gross Versus Net), which clarifies the implementation guidance on principal versus agent considerations. The Company is in the process of evaluating the new standard and assessing the impact, if any, ASU 2014-9 will have on the Company’s financial statements and which adoption method will be used.