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's Reporting Status Current? Entity Filer Category Entity Emerging Growth Company Entity Small Business Entity Ex Transition Period 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 Income tax payable Accrued offering costs Total Current Liabilities Commitments Common stock subject to possible redemption, 6,397,438 and 6,444,515 shares at redemption value as of September 30, 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; 2,638,062 and 2,590,985 shares issued and outstanding (excluding 6,397,438 and 6,444,515 shares subject to possible redemption) as of September 30, 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 (loss) before provision for income taxes Provision for income taxes Net Income (Loss) 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 (loss) Adjustments to reconcile net income to net cash used in operating activities: Interest earned 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: Proceeds from issuance of common stock to Sponsor Proceeds from promissory notes –related parties Payment of offering costs Net cash (used in) provided by 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 Deferred offering costs included in accrued offering costs Description Of Organization And Business Operations DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Liquidity LIQUIDITY Summary Of Significant Accounting Policies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments and Contingencies Disclosure [Abstract] COMMITMENTS Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY Fair Value Measurements FAIR VALUE MEASUREMENTS Subsequent Events [Abstract] SUBSEQUENT EVENTS Summary Of Significant Accounting Policies Basis of presentation Use of estimates Marketable securities held in Trust Account Net loss per common share Reconciliation of net loss per common share Summary Of Significant Accounting Policies Reconciliation of net loss per common share Fair Value Measurements Fair value hierarchy Description Of Organization And Business Operations State of incorporation Date of incorporation Liquidity Summary Of Significant Accounting Policies Less: Income attributable to common stock subject to possible redemption Adjusted net loss Summary Of Significant Accounting Policies Related Party Transactions Office space, utilities and administrative support expense Statement [Table] Statement [Line Items] Fair Value Hierarchy and NAV [Axis] 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] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Net Income (Loss) Available to Common Stockholders, Basic