Document and Entity Information Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Securities Act File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Restricted Cash and Cash Equivalents, Current Restricted cash and cash equivalents Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net of allowance for credit losses of $780 and $1,043 as of March 31, 2026 and December 31, 2025, respectively Accounts receivable, net Inventory, Net Inventory Net Investment in Lease, before Allowance for Credit Loss, Current Current portion of net investments in sales-type leases Prepaid Expense, Current Current portion of prepaid commission expense Sum of the carrying values as of the balance sheet date of the portions of long-term notes receivable due within one year or the operating cycle if longer. Notes Receivables, Current Current portion of notes receivable Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Net Investment in Lease, before Allowance for Credit Loss, Noncurrent Net investments in sales-type leases Prepaid Expense, Noncurrent Prepaid commission expense Financing Receivable, after Allowance for Credit Loss, Noncurrent Long-term notes receivable Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and Equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses Accrued expenses Deferred Revenue, Current Current portion of deferred revenue Business Combination, Contingent Consideration, Liability, Current Deferred and contingent consideration Other Liabilities, Current Other payables Operating Lease, Liability, Current Current portion of operating lease liabilities Liabilities, Current Total current liabilities Long-Term Debt, Excluding Current Maturities Long-term debt, net Other Liabilities, Noncurrent Other long term liabilities Deferred Revenue, Noncurrent Deferred revenue Operating Lease, Liability, Noncurrent Operating lease liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies (Note 18) Equity, Attributable to Parent [Abstract] Equity: Preferred Stock, Value, Issued Preferred stock, $0.01 par value: 10,000 shares authorized; no shares issued or outstanding on March 31, 2026 and December 31, 2025 Common Stock, Value, Issued Common stock, $0.01 par value: 250,000 shares authorized; 69,583 and 68,994 shares issued and outstanding on March 31, 2026 and December 31, 2025, respectively Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated deficit Equity, Attributable to Parent Total Stockholders' equity Equity, Attributable to Noncontrolling Interest Non-controlling interest Equity, Including Portion Attributable to Noncontrolling Interest Ending balance Beginning balance Total equity Liabilities and Equity Total liabilities and equity Accounts Receivable, Allowance for Credit Loss, Current Less: Allowances for credit losses Balance at End of Period Balance at Beginning of Period Allowance of credit losses Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized (in shares) Preferred Stock, Shares Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Common stock, shares issued (in shares) Shares of common stock issued Common Stock, Shares, Outstanding Common stock, shares outstanding (in shares) Consolidated Statements of Operations Statement [Table] Statement [Table] Product and Service [Axis] Product and Service [Domain] Product [Member] Products and Other Service [Member] Service Services Statement [Line Items] Statement [Line Items] Revenue from Contract with Customer, Excluding Assessed Tax Total revenue Revenue Cost of Goods and Services Sold Total cost of revenues Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: Selling and Marketing Expense Sales and marketing General and Administrative Expense General and administrative Research and Development Expense Research and development Research and development - Direct Operating Expenses Total operating expenses Operating Income (Loss) Loss from operations Other Nonoperating Income (Expense) [Abstract] Other (income) expense: Interest Expense, Operating and Nonoperating Interest expense Gain (Loss) on Extinguishment of Debt Loss on extinguishment of debt Loss on extinguishment of debt Other Nonoperating Income (Expense) Other income, net Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Net loss Net loss Net Income (Loss) Attributable to Noncontrolling Interest Less: Net gain (loss) attributable to non-controlling interest Net Income (Loss) Attributable to Parent Net loss attributable to Neuronetics stockholders' Earnings Per Share, Basic Net loss per share of common stock outstanding, basic attributable to Neuronetics stockholders Earnings Per Share, Diluted Net loss per share of common stock outstanding, diluted attributable to Neuronetics stockholders Weighted Average Number of Shares Outstanding, Basic Weighted average common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted average common shares outstanding, diluted (in shares) Consolidated Statements of Changes in Equity Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Additional Paid-in Capital Retained Earnings [Member] Accumulated Deficit Noncontrolling Interest [Member] Noncontrolling Interest Sale of Stock [Axis] Sale of Stock [Domain] Represents information pertaining to Secondary public offering. Secondary Public Offering [Member] Secondary public offering Represents information pertaining to at-the-market equity offering program. At The Market Equity Offering program [Member] ATM Program. ATM offering Shares, Outstanding Ending balance, shares Beginning balance, shares Stock Issued During Period, Value, Stock Options Exercised Share-based awards and option exercises Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Number of Shares under Option, Exercised Share-based awards and option exercises (in shares) Stock Issued During Period, Value, New Issues Issuance of common stock, net of issuance costs Stock Issued During Period, Shares, New Issues Issuance of common stock, net of issuance costs (in shares) Common stock shares issued and sold APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Share-based compensation expense Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Distribution to non-controlling interest Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Common stock issuance cost Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Accounts Receivable, Credit Loss Expense (Reversal) Bad Debt Expense Reversed Allowance for credit losses Inventory Write-down Inventory impairment Share-Based Payment Arrangement, Noncash Expense Share-based compensation Amortization of Debt Issuance Costs and Discounts Non-cash interest expense Gain (Loss) on Disposition of Property Plant Equipment Loss on disposal of property and equipment Increase (Decrease) in Operating Capital [Abstract] Changes in certain assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable, net Increase (Decrease) in Inventories Inventory Increase decrease in net investment in sales type leases. Increase Decrease In Net Investment In Sales Type Leases Net investments in sales-type leases Increase (decrease) in prepaid commission expense. Increase Decrease In Prepaid Commission Expense Prepaid commission expense Increase (Decrease) in Prepaid Expenses, Other Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Other Operating Liabilities Other liabilities Increase (Decrease) in Contract with Customer, Liability Deferred revenue Net Cash Provided by (Used in) Operating Activities Negative cash flows from operating activities Net cash used in operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Productive Assets Purchases of property and equipment and capitalized software Proceeds from Sale of Property, Plant, and Equipment Proceeds from the sale of property and equipment Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Payment for Contingent Consideration Liability, Financing Activities Repayment of deferred and contingent consideration Repayments of Long-Term Debt Repayment of long-term debt Repayment of long-term debt Payment for Debt Extinguishment or Debt Prepayment Cost Payment for debt extinguishment cost Proceeds from Issuance of Common Stock Proceeds from the issuance of common stock Gross proceeds Payments of Stock Issuance Costs Payments of common stock offering issuance costs Payments to Noncontrolling Interests Distribution to non-controlling interest Proceeds from Stock Options Exercised Proceeds from exercises of stock options Net Cash Provided by (Used in) Financing Activities Net cash (used in) provided by financing activities Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Net increase (decrease) in Cash, Cash equivalents and Restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash and cash equivalents and restricted cash and cash equivalents, end of period Cash and cash equivalents and restricted cash and cash equivalents, beginning of period Total cash and cash equivalents and restricted cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Reconciliation of cash and cash equivalents and restricted cash and cash equivalents to the consolidated balance sheet: Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for interest Transfer of inventory to property and equipment. Transfer Of Inventory To Property And Equipment Transfer of inventory to property and equipment Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental disclosure of non-cash investing and financing activities: Capital Expenditures Incurred but Not yet Paid Purchases of property and equipment and capitalized software in accounts payable and accrued expenses DESCRIPTION OF BUSINESS Nature of Operations [Text Block] DESCRIPTION OF BUSINESS No definition available. BASIS OF PRESENTATION Basis of Accounting [Text Block] BASIS OF PRESENTATION SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES RECENT ACCOUNTING PRONOUNCEMENTS Accounting Standards Update and Change in Accounting Principle [Text Block] RECENT ACCOUNTING PRONOUNCEMENTS INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] INTANGIBLE ASSETS FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS ACCOUNTS RECEIVABLE The entire disclosure for trade accounts receivable. Account Receivable, Trade [Text Block] ACCOUNTS RECEIVABLE INVENTORY Inventory Disclosure [Text Block] INVENTORY PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE Property, Plant and Equipment Disclosure [Text Block] PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE LEASES Leases of lessee and lessor. Leases Of Lessee And Lessor Disclosure [Text Block] LEASES PREPAID COMMISSION EXPENSE Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] PREPAID COMMISSION EXPENSE ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] ACCRUED EXPENSES REVENUE AND DEFERRED REVENUE Revenue from Contract with Customer [Text Block] REVENUE AND DEFERRED REVENUE