Equity Components [Axis] Common Stock Additional Paid-in Capital Retained Earnings/(Accumulated Deficit) 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 Emerging Growth Company Entity Ex Transition Period Entity Small Business Entity Shell Company Entity Interactive Data Current Entity Incorporation, State or Country Code Entity File Number 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 income taxes Prepaid expenses and other current assets Total current assets Cash and marketable securities held in Trust Account Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities Accounts payable and accrued expenses Income tax payable Total current liabilities Promissory note - related party Promissory note Total liabilities Commitments and contingencies (Note 7) Common stock subject to possible redemption, 2,305,335 and 6,310,461 shares at redemption value as of December 31, 2019 and 2018, 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; 2,305,335 and 2,725,039 shares issued and outstanding (excluding 2,844,414 and 6,310,461 shares subject to possible redemption) as of December 31, 2019 and 2018, respectively Additional paid-in capital Retained earnings/(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 expenses Loss from operations Other Income: Interest income 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 [Table] Statement [Line Items] Beginning balance, shares Beginning balance, amount Common stock subject to possible redemption, shares Common stock subject to possible redemption, amount Capital contribution to Trust Account to extend the date by which the company is required to consummate a business combination Net income Ending balance, shares Ending balance, amount 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 Changes in operating assets and liabilities: Prepaid expenses and other current assets Prepaid incomes taxes Accounts payable and accrued expenses Income tax payable Net cash used in operating activities Cash Flows from Investing Activities: Cash withdrawn from Trust Account to pay redeeming stockholders Cash withdrawn from Trust Account to pay franchise and income taxes Investment of cash in Trust Account Net cash provided by investing activities Cash Flows from Financing Activities: Proceeds from promissory notes Proceeds from promissory note - related parties Repayment of promissory note - related parties Redemption of common stock Payment of offering costs Net cash (used in) provided by financing activities Net change in cash Cash - beginning Cash - ending Supplemental Cash Flow Information: Cash paid for income taxes Non-cash Investing and Financing Activities: Change in value of common stock subject to redemption Capital contribution to Trust Account Organization, Consolidation and Presentation of Financial Statements [Abstract] DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Initial Public Offering INITIAL PUBLIC OFFERING Private Placement PRIVATE PLACEMENT Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Debt Disclosure [Abstract] INVESTOR AGREEMENT AND PROMISSORY NOTES Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY Income Tax Disclosure [Abstract] INCOME TAX 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 Cash and 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 Reconciliation of net loss per common share Deferred tax assets Income tax provision (benefit) Reconciliation of the federal income tax rate Fair value hierarchy Date of incorporation Net income (loss) Less: income attributable to common stock subject to redemption Adjusted net loss Office space, utilities and administrative support expense Deferred tax asset Net operating loss carryforward Unrealized loss on securities Total deferred tax assets Valuation allowance Deferred tax asset, net of allowance Federal Current Deferred State Current Deferred Change in valuation allowance Income tax provision (benefit) Statutory federal income tax rate State taxes, net of federal tax benefit True ups Change in valuation allowance Income tax provision Net operating loss carryovers Fair Value Hierarchy and NAV [Axis] Marketable securities held in Trust Account Assets, Current Assets Liabilities, Current Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Operating Income (Loss) Income Tax Expense (Benefit) Shares, Outstanding Temporary Equity, Stock Issued During Period, Value, New Issues Marketable Securities, Gain (Loss) Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Prepaid Taxes Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Investments Net Cash Provided by (Used in) Investing Activities Repayments of Related Party Debt 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 Deferred Tax Assets, Gross Deferred Tax Assets, Valuation Allowance Deferred Tax Assets, Net of Valuation Allowance Current State and Local Tax Expense (Benefit) Deferred State and Local Income Tax Expense (Benefit) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective Income Tax Rate Reconciliation, Percent