Sale of Stock [Axis] Private Placement [Member] Equity Components [Axis] Warrant [Member] Initial Stockholders ("Founder Shares") [Member] Related Party [Axis] Sponsor [Member] Over-Allotment Option [Member] Long-term Debt, Type [Axis] Unsecured Promissory Note [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Administrative Services Agreement [Member] Underwriters [Member] Balance Sheet Location [Axis] Accounts Payable And Accrued Expenses [Member] Underwriters Agreement [Member] Measurement Frequency [Axis] Fair Value, Measurements, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Financial Instrument [Axis] Asset Held in Trust [Member] Common Stock [Member] Additional Paid in Capital [Member] Retained Earnings [Member] Initial Public Offering [Member] Document And Entity Information Entity Registrant Name Entity Central Index Key Document Type Trading Symbol Document Period End Date Amendment Flag Current Fiscal Year End Date Entity's Reporting Status Current Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Filer Category Entity Public Float 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 taxes payable Total Current Liabilities Commitments Common stock subject to possible redemption, 12,591,530 and 12,599,737 shares at redemption value at March 31, 2019 and December 31, 2018, respectively Stockholders' Equity Preferred stock, $0.0001 par value; 1,000,000 shares authorized, none issued and outstanding Common stock, $0.0001 par value; 100,000,000 shares authorized; 3,658,470 and 4,137,763 shares issued and outstanding (excluding 12,591,530 and 12,599,737 shares subject to possible redemption) at March 31, 2019 and December 31, 2018, respectively Additional paid in capital Retained earnings Total Stockholders' Equity Total Liabilities and Stockholders' Equity Common stock, possible redemption value Preferred stock, par value (in dollars per share) Preferred stock, authorized Preferred stock, issued Preferred stock, outstanding Common stock, par value (in dollars per share) Common stock, authorized Common stock, issued Common stock, outstanding Income Statement [Abstract] Operating costs Loss from operations Other income: Interest income Unrealized gain 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 (in shares) Basic and diluted net loss per common share (in dollars per share) Statement [Table] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Beginning balance (in shares) Forfeiture of Founder Shares Forfeiture of Founder Shares (in shares) Change in value of common stock subject to possible redemption Change in value of common stock subject to possible redemption (in shares) Net income Ending balance Ending balance (in shares) Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Adjustments to reconcile net income to net cash used in operating activities: Interest earned on marketable securities held in Trust Account Unrealized gain on marketable securities held in Trust Account Changes in operating assets and liabilities: Prepaid expenses and other current assets Accounts payable and accrued expenses Income taxes payable Net cash used in operating activities Cash Flows from Investing Activities: Interest income released from Trust Account for the payments of franchise and income taxes Net cash provided by investing activities Net Change in Cash Cash - Beginning Cash - Ending Supplementary cash flow information: Cash paid for income taxes Non-Cash investing and financing activities: Change in value of common stock subject to possible redemption Organization, Consolidation and Presentation of Financial Statements [Abstract] DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Equity [Abstract] INITIAL PUBLIC OFFERING PRIVATE PLACEMENT WARRANTS Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES STOCKHOLDERS' EQUITY Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Subsequent Events [Abstract] SUBSEQUENT EVENTS 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 Schedule for reconciliation of net loss per common share Schedule of assets that are measured at fair value on a recurring basis Number of units issued in transaction Unit price (in dollars per unit) Gross proceeds from issuance offering Transaction costs Deferred underwriting fees Underwriting fees Other costs Working Capital Minimum percentage of trust account required for business combination Percentage of outstanding voting securities Description of business combination within the combination period Amount of threshold tangible assets Percentage of redemption of companys outstanding public shares Repayment of a promissory note Dissolution expenses Less: Income attributable to common stock subject to possible redemption Adjusted net loss Number of shares purchased Federal depository insurance coverage Description of transaction Number of securities purchase by each warrant Number of securities purchase by each warrant, exercise price (in dollars per share) Description of warrant exercisable term Description of redemption term Description of additional transaction Shares issued per share (in dollars per share) Proceeds from issuance of private placement Exercise price (in dollars per share) Subsequent Event Type [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Number of common stock issued (in shares) Number of common stock issued, value Number of common stock issued (in dollars per share) Number of common stock forfeited (in shares) Maximum shares subject to forfeited Percentage of issued and outstanding shares Founder shares, issued Founder share, outstanding Description of initial stockholders Aggregate principal amount Interest rate terms Payment for secretarial administrative fees Amount of debt converted Conversion price (in dollars per share) Fees Number of unit issued Percentage of underwriting discount Cash fee for services Assets: Marketable securities held in Trust Account Represents information related to sponsor. Represent the amount of deferred underwriting fees. The amount of underwriting fees. It represents Expense related to distribution or servicing and underwriting fees. Working capital during the period. The percentage of trust account required for business combination. It represents the value of threshold tangible assets. Refers to percentage of trust account required for business combination. The amount of dissolution expenses. It represents federal depository insurance coverage. Represent the description of warrant exercisable term. Represent the description of warrant exercisable term. Represent the description of warrant redemption term. Information by initial stockholder. Represents information related to underwriters. The member represent unsecured promissory note. Information by administrative services agreement. It refrest to maximum shares subject to forfeiture. Represents the information pertaining to percentage of issued and outstanding shares. It refrest to description of initial stockholders. Amount paid to managing member or general partner, affiliate of managing member or general partner, or affiliate of limited liability company (LLC) or limited partnership (LP) for secretarial and administrative services provided to the LLC or LP, for example, but not limited to, salaries, rent, or overhead costs. It represents underwriters agreement member. Represents underwriting discount percent. It represents cash fee for services. Represent information about the redemption shares of temporary equity. Represents information related to change in value of ordinary shares subject to possible redemption. The entire disclosure for Initial public offering. The entire disclosure of private pacement. Disclosure of accounting policy for its emerging growth company. The entire policy disclosure is for reconciliation of net loss per ordinary share. Amount refers to interest income released from trust account for payments of franchise and income taxes. Assets, Current Assets Liabilities, Current Stockholders' Equity Attributable to Parent Liabilities and Equity Operating Income (Loss) Nonoperating Income (Expense) Income Tax Expense (Benefit) Shares, Outstanding 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 Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, at Carrying Value ChangeInValueOfOrdinarySharesSubjectToPossibleRedemption Marketable Securities, Policy [Policy Text Block] Temporary Equity, Accretion to Redemption Value, Adjustment Net Income (Loss) Available to Common Stockholders, Basic Assets, Fair Value Disclosure