Equity Components [Axis] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Title and Position [Axis] Board of Directors [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Investment Type [Axis] US Government Debt Securities [Member] Asset Class [Axis] Debt Securities [Member] Insured Money Market Account [Member] Award Type [Axis] Share-Based Payment Arrangement, Option [Member] Warrant [Member] Antidilutive Securities [Axis] Segments [Axis] Employee Expense [Member] Clinical [Member] Products [Member] Other [Member] Professional Fees [Member] Reserve for Uncollectible Prepaid Clinical Costs [Member] Occupancy [Member] Insurance [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Statement of Financial Position [Abstract] Assets Current assets: Cash and cash equivalents Short-term investments Prepaid expenses and other current assets Total current assets Property and equipment, net Operating lease right-of-use assets, net Security deposits and other assets Total assets Liabilities and Stockholders’ Equity Current liabilities: Accounts payable, accrued expenses and other current liabilities Current portion of operating lease liabilities Total current liabilities Long-term operating lease liabilities Total liabilities Commitments and Contingencies – Note 7 Stockholders’ Equity: Preferred stock, par value $0.00001, 10,000 shares authorized, no shares issued or outstanding Common stock, par value $0.00001, 250,000 shares authorized, 673 and 656 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively Additional paid-in capital Accumulated deficit Total stockholders’ equity Total liabilities and stockholders’ equity Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Operating expenses: Research and development expenses Selling, general and administrative expenses Loss from operations Other income: Realized gains from sales of trading securities Unrealized loss from trading securities Interest income Loss from disposition of property and equipment Total other income Net loss Net loss per basic common share Net loss per diluted common share Weighted average number of common shares outstanding: Basic Diluted Statement [Table] Statement [Line Items] Balance Balance, shares Issuance of common stock from At-the-Market offering (ATM), net of fees Issuance of common stock from At-the-Market offering (ATM), net of fees, shares Stock-based compensation Net loss Exercise of common stock warrants Effect of reverse stock split Common stock issued for exercise of pre-funded warrants Common stock issued for exercise of pre-funded warrants, shares Balance Balance, shares Statement of Cash Flows [Abstract] Cash Flows from Operating Activities Adjustments to reconcile net loss to net cash used in operating activities: Stock-based compensation Depreciation and amortization Loss on disposition of property and equipment Amortization of right-of-use assets Unrealized loss from investments Changes in operating assets and liabilities: Prepaid expenses and other current assets Accounts payable, accrued expenses and other current liabilities Operating lease liabilities Net cash used in operating activities Cash Flows from Investing Activities Maturities of investments Purchases of investments Purchases of property and equipment Net cash provided by investing activities Cash Flows from Financing Activities Proceeds from sale of common stock in At-the-Market offering, net of fees Net cash provided by financing activities Net (decrease) increase in cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Organization, Consolidation and Presentation of Financial Statements [Abstract] Business Organization and Nature of Operations Management’s Liquidity Plan Accounting Policies [Abstract] Significant Accounting Policies Cash and Cash Equivalents [Abstract] Investments Risks and Uncertainties [Abstract] Concentrations Payables and Accruals [Abstract] Accounts Payable Accrued Expenses and Other Current Liabilities Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Equity [Abstract] Stockholders’ Equity Earnings Per Share [Abstract] Net Loss per Share Segment Reporting [Abstract] Segment Reporting Basis of Presentation Schedule of Components of Investments Schedule of Accounts Payable, Accrued Expenses and Other Current Liabilities Schedule of Dilutive Net Loss Per Common Share Schedule of Segment Expenses OrganizationConsolidationAndPresentationOfFinancialStatementsTable [Table] Reverse stock split Cash Investments Working capital Defined Benefit Plan [Table] Defined Benefit Plan Disclosure [Line Items] Cash equivalents Short-term investments Unrealized losses FDIC amount Uninsured cash balances Accounts payable Accrued compensation costs Accrued clinical costs Accrued severance Other accrued expenses Total accounts payable, accrued expenses and other current liabilities Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Unrecognized stock-based compensation expense Weighted average remaining vesting period Shares granted Shares exercised Shares forfeited Number of warrants, issued Pre-funded warrants, shares Warrants exercise price per share Number of warrants, expired Stock issued during period shares issued for services Stock issued during period value issued for services Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Potentially dilutive common stock equivalents excluded from diluted net loss per share Segment Reporting [Table] Segment Reporting [Line Items] Total research and development Total selling, general and administrative expense Loss from Operations Adjustments and reconciling items Net Loss Number of Reportable Segments Security deposits and other assets noncurrent. Stock issued during period value prefunded warrants exercised. Stock issued during period shares prefunded warrants exercised. Exercise of common stock warrants. Working capital. Cash equivalents fair value disclosure. Accrued clinical costs. Accrued severance. Class of warrant or right number of securities called by warrants or right. Depreciations and amortization. Board of Directors [Member] Reserve for Uncollectible Prepaid Clinical Costs [Member] Employee Expense [Member] Clinical [Member] Products [Member] Other [Member] Professional Fees [Member] Occupancy [Member] Insurance [Member] Assets, Current Assets [Default Label] Liabilities, Current Liabilities Equity, Attributable to Parent Liabilities and Equity Operating Income (Loss) Nonoperating Income (Expense) Shares, Outstanding Share-Based Payment Arrangement, Noncash Expense Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Payments to Acquire Investments Payments to Acquire Property, Plant, and Equipment Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Investments [Default Label] Investments, Fair Value Disclosure