Consolidated Entities [Axis] Chardan Investments, LLC (the "Sponsor") [Member] Sale of Stock [Axis] Over-Allotment Option [Member] Equity Components [Axis] Accumulated Deficit [Member] Initial Public Offering [Member] Long-term Debt, Type [Axis] Promissory Note [Member] Unsecured Promissory Notes [Member] Measurement Frequency [Axis] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Level 1 [Member] Common Stock [Member] Additional Paid-In Capital [Member] Warrant [Member] Private Placement [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Agreement Type [Axis] Merger Agreement [Member] Common Stock Additional Paid-In Capital Accumulated Deficit Legal Entity [Axis] Mountain Wood, LLC [Member] Related Party [Axis] Underwriter [Member] Document and Entity Information [Abstract] Entity Registrant Name Entity Central Index Key Amendment Flag Current Fiscal Year End Date Document Type Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Current Reporting Status Entity Filer Category Entity Shell Company Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Common Stock, Shares Outstanding Entity Filer Number Entity Interactive Data Current Entity Incorporation State Country Code Statement of Financial Position [Abstract] ASSETS Current Assets Cash and cash equivalents Prepaid expenses and other current assets Total Current Assets Deferred tax asset 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 Promissory note - related party Total Liabilities Commitments Common stock subject to possible redemption, 6,453,777 and 6,510,243 and no shares at redemption value as of September 30, 2019 and June 30, 2019, respectively Stockholders’ Equity Preferred stock, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding Common stock, $0.0001 par value; 30,000,000 shares authorized; 2,296,223 and 2,239,757 shares issued and outstanding (excluding 6,453,777and 6,510,243 and no shares subject to possible redemption) as of September 30, 2019 and June 30, 2019, respectively Additional paid-in capital Retained earnings Total Stockholders' Equity TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY Common stock subject to possible redemption 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 Number of shares forfeiture Income Statement [Abstract] Operating costs Loss from operations Other income: Interest income on marketable securities held in Trust Account Interest income - other Other income Loss before provision for income taxes Provision for income taxes Net loss Weighted average shares outstanding, basic and diluted Basic and diluted net loss per common share Statement [Table] Statement [Line Items] Number of shares subject to mandatory redemption Income attributable to common stock subject to redemption Balance Balance,Shares Change in value of common stock subject to possible redemption Change in value of common stock subject to possible redemption,shares Net loss Balance Balance,shares Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities: Interest earned on marketable securities held in Trust Account Deferred tax provision Changes in operating assets and liabilities: Prepaid expenses and other current assets Accounts payable and accrued expenses Income taxes payable Net cash and cash equivalents used in operating activities Cash Flows from Investing Activities: Cash withdrawn from Trust Account to pay for income taxes Net cash and cash equivalents provided by investing activities Cash Flows from Financing Activities: Proceeds from promissory notes - related party Repayment of promissory note - related party Payment of offering costs Net cash and cash equivalents (used in) provided by financing activities Net Change in Cash and Cash Equivalents Cash and Cash Equivalents - Beginning Cash and Cash Equivalents - Ending Supplementary cash flow information: Cash paid for income taxes Non-cash investing and financing activities: Change in value of common stock subject to redemption Offering costs included in accrued offering costs Organization, Consolidation and Presentation of Financial Statements [Abstract] DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Liquidity [Abstract] LIQUIDITY Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Initial Public Offering [Abstract] INITIAL PUBLIC OFFERING Private Placement [Abstract] PRIVATE PLACEMENT Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments and Contingencies Disclosure [Abstract] COMMITMENTS Equity [Abstract] STOCKHOLDER'S EQUITY Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Subsequent Events [Abstract] SUBSEQUENT EVENTS Basis of presentation Principles of Consolidation 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 assets that are measured at fair value on a recurring basis Description of Organization and Business Operations (Textual) Purchase of private placement warrants Share price (in dollars per share) Gross proceeds Proceeds from private placement Transaction costs amounted Underwriting fees Offering costs Cash held outside of Trust Account Minimum net tangible assets to required business combination Redemption price per share (in dollars per share) Percentage of balance in trust account Percentage of voting interest Percentage of redeeming public share Percentage of obligation to redeem public share Redemption price (in dollars per unit) Sale of stock, description Percentage of obligation to outstanding redeem public share Liquidity (Textual) Operating bank accounts Marketable securities Working capital deficit Income taxes payable Amount deposited in trust accounts Income tax obligations Aggregate transaction cost Committment, description Conversion of convertibles into private warrants Excercise warrant Net loss Less: Income attributable to common stock subject to possible redemption Adjusted net loss Weighted average shares outstanding, basic and diluted (in shares) Basic and diluted net loss per share (in dollars per share)