Fair Value, Hierarchy [Axis] Level 1 Document And Entity Information Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Is Entity a Well-known Seasoned Issuer? Is Entity a Voluntary Filer? Is Entity's Reporting Status Current? Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] ASSETS Current assets Cash Prepaid expenses and other current assets Total Current Assets Marketable securities held in Trust Account Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities Accounts payable and accrued expenses Accrued offering costs Income tax payable Total Current Liabilities Commitments Common stock subject to possible redemption, 6,429,718 and 6,444,515 shares at redemption value as of March 31, 2018 and December 31, 2017, respectively Stockholders' Equity Preferred stock, $0.001 par value; 1,000,000 authorized; none issued and outstanding Common stock, $0.001 par value; 100,000,000 shares authorized; 2,605,782 and 2,590,985 shares issued and outstanding (excluding 6,429,718 and 6,444,515 shares subject to possible redemption) as of March 31, 2018 and December 31, 2017, respectively Additional paid-in capital Accumulated deficit Total Stockholders' Equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Common stock subject to possible redemption Preferred stock, par value Preferred stock, authorized Preferred stock, issued Preferred stock, outstanding Common stock, par value Common stock, authorized Common stock, issued Common stock, outstanding Shares subject to redemption Income Statement [Abstract] Operating costs Loss from operations Other income: Interest income Unrealized loss on marketable securities held in Trust Account Other income, net Income before provision for income taxes Provision for income taxes Net income Weighted average shares outstanding, basic and diluted Basic and diluted net loss per common share Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Net income Adjustments to reconcile net income to net cash used in operating activities: Interest earned on marketable securities held in Trust Account Unrealized loss on marketable securities held in Trust Account Changes in operating assets and liabilities: Prepaid expenses Accounts payable and accrued expenses Income tax payable Net cash used in operating activities Cash Flows from Investing Activities: Cash withdrawn from Trust Account Net cash provided by investing activities Cash Flows from Financing Activities: Payment of offering costs Net cash used in financing activities Net Change in Cash Cash – Beginning Cash – Ending Non-cash investing and financing activities: Change in value of common stock subject to possible redemption Description Of Organization And Business Operations DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Summary Of Significant Accounting Policies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Initial Public Offering INITIAL PUBLIC OFFERING Private Placement PRIVATE PLACEMENT Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments And Contingencies COMMITMENTS AND CONTINGENCIES Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY Fair Value Measurements FAIR VALUE MEASUREMENTS Subsequent Events [Abstract] SUBSEQUENT EVENTS Summary Of Significant Accounting Policies Policies Basis of presentation Emerging growth company Use of estimates Cash and cash equivalents Marketable securities held in Trust Account Common stock subject to possible redemption Income taxes Net loss per common share Reconciliation of net loss per common share Concentration of credit risk Fair value of financial instruments Recently issued accounting standards Summary Of Significant Accounting Policies Tables Reconciliation of net loss per common share Fair Value Measurements Tables Fair value hierarchy Description Of Organization And Business Operations Details Narrative State of incorporation Date of incorporation Summary Of Significant Accounting Policies Details Less: Income attributable to common stock subject to redemption Adjusted net loss Summary Of Significant Accounting Policies Details Narrative Related Party Transactions Details Narrative Office space, utilities and administrative support expense Statement [Table] Statement [Line Items] Assets, Current Assets Liabilities, Current Stockholders' Equity Attributable to Parent Liabilities and Equity Operating Income (Loss) Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income Tax Expense (Benefit) Marketable Securities, Gain (Loss) Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Income Taxes Payable Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Investing Activities Payments of Stock Issuance Costs Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Marketable Securities, Policy [Policy Text Block] Stockholders' Equity, Policy [Policy Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Net Income (Loss) Available to Common Stockholders, Basic