Equity Components [Axis] Common Stock Additional Paid-In Capital Retained Earnings (Accumulated Deficit) Sale of Stock [Axis] Initial Public Offering [Member] Private Placement [Member] Warrant [Member] Related Party [Axis] Axis Public Ventures [Member] Over-Allotment Option [Member] Class of Stock [Axis] Common Class A [Member] Underwriter [Member] Underwriters [Member] Common Stock [Member] Sponsors [Member] Initial Stockholders ("Founder Shares") [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Administrative Services Agreement [Member] Balance Sheet Location [Axis] Accounts Payable and Accrued Expenses [Member] Long-term Debt, Type [Axis] Promissory Notes [Member] Contingent Forward Purchase Contract [Member] Legal Entity [Axis] Lion Point [Member] Business Combination Marketing Agreement [Member] Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis] Common Stock Subject to Mandatory Redemption [Member] Measurement Frequency [Axis] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Level 1 [Member] Document And Entity Information Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Trading Symbol Amendment Flag Current Fiscal Year End Date Is Entity a Well-known Seasoned Issuer? Is Entity a Voluntary Filer? Entity's Reporting Status Current Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period 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 Total Current Assets Marketable securities held in Trust Account Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities Account payable and accrued expenses Income taxes payable Total Current Liabilities Other long-term liabilities Total Liabilities Commitments Common stock subject to possible redemption, 11,019,667 and 11,030,442 shares at redemption value as of March 31, 2019 and December 31, 2018, respectively Stockholders' Equity Preferred stock, $0.0001 par value; 10,000,000 authorized; none issued and outstanding Common stock, $0.0001 par value; 100,000,000 shares authorized; 3,800,333 and 3,789,558 issued and outstanding (excluding 11,019,667 and 11,030,442 shares subject to possible redemption) as of March 31, 2019 and December 31, 2018, respectively Additional paid-in capital Retained earnings Total Stockholders' Equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Common stock subject to possible redemption,at 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 loss on marketable securities held in Trust Account Other income 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] Balances at beginning Balances at beginning (in shares) Sale of Units, net of underwriting discounts and offering expenses Sale of Units, net of underwriting discounts and offering expenses (in shares) Sale of Private Placement Units Sale of Private Placement Units (in shares) Proceeds from the sale of unit purchase option Common stock subject to possible redemption Common stock subject to possible redemption (in shares) Change in value of common stock subject to redemption Change in value of common stock subject to redemption (in shares) Net income Balances at ending Balances at ending (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 Deferred tax provision Changes in operating assets and liabilities: Prepaid expenses Accounts payable and accrued expenses Income taxes payable Net cash used in operating activities Cash Flows from Investing Activities: Cash withdrawn from Trust Account Investment of cash in Trust Account Net cash provided by (used in) investing activities Cash Flows from Financing Activities: Proceeds from sale of Units, net of underwriting discounts paid Proceeds from sale of Private Placement Units Proceeds from Unit Purchase Option Advances from related party Repayment of advances from related party Repayment of promissory note - related party Payment of offering costs Net cash provided by financing activities Net Change in Cash Cash - Beginning Cash - Ending Non-cash investing and financing activities: Initial classification of common stock subject to possible redemption Change in value of common stock subject to possible redemption Description Of Organization And Business Operations DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Organization, Consolidation and Presentation of Financial Statements [Abstract] LIQUIDITY AND GOING CONCERN 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 Commitments and Contingencies Disclosure [Abstract] COMMITMENTS Stockholders' Equity Attributable to Parent [Abstract] 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 of reconciliation of net loss per common share Schedule of fair value on a recurring basis Number of units issued in transaction Gross proceeds from issuance offering Proceeds from issuance of warrant private placement Unit price (in dollars per unit) Net proceeds from issuance equity held in trust account Total net proceeds held in the trust account Transaction costs Underwriting fees Other cost Cash held outside the Trust Account Common stock subject to redemption share price held in trust account (in dollars per share) Minimum percentage of trust account required for business combination Percentage of outstanding voting securities Amount of threshold tangible assets Description of business combination within the combination period Percentage of redemption of company's outstanding public shares Maximum additonal fund for liquidation expenses paid Cash in operating bank accounts Working capital Amount on deposit in Trust Account represented interest income Net income (loss) Less: Income attributable to common stock subject to redemption Adjusted net loss Federal depository insurance coverage Number of offering and private placement converted Unrecognized tax benefits Accrued for interest and penalties Cash equivalents Effective tax rate Exercise price (in dollars per share) Number of share contain per unit Unit price (in dollars per share) Number of units converted into notes payable Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Number of common stock issued Purchase price of shares issued Maximum shares subject to forfeited Percentage of issued and outstanding shares Number of shares outstanding Number of shares transferred Description of initial stockholders Administrative fees Payment for administrative fees Accounts payable and accrued expenses Amount of debt converted Conversion price (in dollars per share) Percentage of gross proceeds proposed offering Common stock, authorized Common stock, par value (in dollars per share) Common stock, issued Common stock, outstanding Number of shares for redemption Common stock, rights Warrant term Exercise price of warrants (in dollars per share) Description of sale price of common stock Shares purchase price, per share (in dollars per share) Units sold, value Amount of shares issued under purchase option Number of shares issued under purchase option Amount of estimated fair value Expected volatility Risk-free interest rate Expected life Fair Value, by Balance Sheet Grouping [Table] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value Hierarchy and NAV [Axis] Assets: Marketable securities held in Trust Account Refers to amount of additonal fund for liquidation expenses paid during the period. Information by administrative services agreement. It represents the value of threshold tangible assets. The amount represent deposit in trust account interest income. Information by type of related party. Information by category of arrangement, including but not limited to collaborative arrangements and non-collaborative arrangements. Cash held outside trust account. Cash withdrawn from trust account. It represents as a change in value of common stock subject to redemption. Number of stock issued for change in value of common stock subject to redemption. Amount received for change in value of common stock subject to redemption. It refrest to class of warrant or right expiration. Proceeds from common stock subject to possible redemption. Number of common stock subject to possible redemption. Disclosure of accounting policy for common stock subject to possible redemption. It refers to the agreement. It refrest to description of initial stockholders. It refrest to discription of sale price of common stock. Disclosure of accounting policy for emerging growth company. Expense related to distribution, servicing and underwriting fees. Disclosure of initial public offering. Information by initial stockholder. Information by type of related party. It refrest to maximum shares subject to forfeiture. It refrest to number of shares outstanding. Number of units converted into notes payable. Percentage of gross proceeds proposed offering. It refrest to percentage of issue and outstanding. Refers to percentage of trust account required for business combination. Refers to percentage of trust account required for business combination. The entire disclosure for private placement. Represents as a total net proceeds held in the trust account. The cash inflow associated with the amount received from entity's raising of unit purchase option. Information by promissory notes. Disclosure of accounting policy for reconciliation of basic and diluted earnings or loss per share for each class of common stock and participating security. The cash outflow for the specific incremental costs directly attributable to a proposed or actual offering of securities. The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Number of shares sold in Private Placement. Cash received on stock transaction after deduction of issuance costs. The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. Per unit amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. Proceedsv from Sale of Units, net of underwriting discounts and offering expenses. Sale of Units, net of underwriting discounts and offering expenses in shares. Tabular disclosure of an entity's reconciliation of basic and diluted earnings per share calculations, Information by sponsors. Number of stock bought back by the entity at the exercise price or redemption price. Information related to legal entity. Information by underwriters. Working capital during the period. Initial classification of common stock subject to possible redemption. Assets, Current Assets Liabilities, Current Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Operating Income (Loss) Nonoperating Income (Expense) Income Tax Expense (Benefit) Shares, Outstanding Deferred Income Tax Expense (Benefit) Increase (Decrease) in Prepaid Expense Increase (Decrease) in Income Taxes Payable Net Cash Provided by (Used in) Operating Activities INITIAL PUBLIC OFFERING [Default Label] Payments to Acquire Marketable Securities Net Cash Provided by (Used in) Investing Activities Repayments of Related Party Debt Percentage of issued and outstanding shares Emerging growth company [Default Label] Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Marketable Securities, Policy [Policy Text Block] Common stock subject to possible redemption [Default Label] Temporary Equity, Accretion to Redemption Value, Adjustment Net Income (Loss) Available to Common Stockholders, Basic Accounts Payable and Accrued Liabilities Cash and Cash Equivalents, Fair Value Disclosure