Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited financial statements have been prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") for interim financial information and pursuant to the rules and regulations of the SEC. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP. In the opinion of management, all adjustments (consisting of normal accruals) considered for a fair presentation have been included. Operating results for the three and six months ended June 30, 2020 are not necessarily indicative of the results that may be expected for any future period. The accompanying unaudited financial statements should be read in conjunction with the financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 filed with the SEC on February 19, 2020. Principles of Consolidation The unaudited consolidated financial statements of the Company include its wholly-owned subsidiary, Allegro Merger Sub, Inc., a Delaware corporation incorporated on November 7, 2019. All inter-company accounts and transactions are eliminated in consolidation. Marketable securities held in Trust Account As of December 31, 2019, the assets held in the Trust Account were substantially held in U.S. Treasury Bills. On April 21, 2020 the remaining cash held in the Trust Account was fully liquidated Common stock subject to possible redemption The Company accounts for its common stock shares subject to possible redemption in accordance with the guidance in Accounting Standards Codification ("ASC") Topic 480 "Distinguishing Liabilities from Equity." Common stock subject to mandatory redemptions (if any) is classified as a liability instrument and is measured at fair value. Conditionally redeemable common stock (including common stock that feature redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within the Company's control) is classified as temporary equity. At all other times, common stock is classified as stockholders' equity. The Company's common stock features certain redemption rights that are considered to be outside of the Company's control and subject to occurrence of uncertain future events. Accordingly, during the six month period ended June 30, 2020, pursuant to the Charter, all outstanding shares of the Company's common stock that were included in the units sold in the Company's initial public offering (the "Public Shares") were redeemed on April 21, 2020 at a per share redemption price of approximately $10.30 per Public Share (the "Redemption Amount"). On December 31, 2019, common stock subject to possible redemption is presented as temporary equity, outside of the stockholders' equity section of the Company's balance sheets. Net Income (Loss) Per Share The Company complies with accounting and disclosure requirements of FASB ASC Topic 260, "Earnings Per Share." Net income per share is computed by dividing net income applicable to common stockholders by the weighted average number of shares of common stock outstanding for the period. The Company has not considered the effect of the warrants and rights sold in the Initial Public Offering and Private Placement to purchase an aggregate of 16,854,750 Public Shares in the calculation of diluted earnings per share, since their inclusion would be anti-dilutive under the treasury stock method. As a result, diluted earnings per share is the same as basic earnings per share for the period. The Company's consolidated statements of operations includes a presentation of income per share for common stock subject to redemption in a manner similar to the two-class method of income per share. Net income per share, basic and diluted for Public Shares is calculated dividing the net income of $50,005 and $1,203,058, reduced by the investment income on the trust and other income of $356,167 and $1,797,952 respectively, by the weighted average number of Public Shares outstanding during the period. All outstanding shares of the Company's common stock that were included in the units sold in the Company's initial public offering (the "Public Shares") were redeemed. The Founder and Private Placement shares are calculated separately from the Public Shares as these shares do not have any redemption features and do not participate in the income earned on the Trust Account. Recent Accounting Pronouncements The Company's management does not believe that any recently issued, but not yet effective, accounting pronouncements, if currently adopted, would have a material effect on the Company's financial statements.

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2020

Summary of Significant Accounting Policies

Note 2 — Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited financial statements have been prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") for interim financial information and pursuant to the rules and regulations of the SEC. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP. In the opinion of management, all adjustments (consisting of normal accruals) considered for a fair presentation have been included. Operating results for the three and six months ended June 30, 2020 are not necessarily indicative of the results that may be expected for any future period. The accompanying unaudited financial statements should be read in conjunction with the financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 filed with the SEC on February 19, 2020.

Principles of Consolidation

The unaudited consolidated financial statements of the Company include its wholly-owned subsidiary, Allegro Merger Sub, Inc., a Delaware corporation incorporated on November 7, 2019. All inter-company accounts and transactions are eliminated in consolidation.

Marketable securities held in Trust Account

As of December 31, 2019, the assets held in the Trust Account were substantially held in U.S. Treasury Bills. On April 21, 2020 the remaining cash held in the Trust Account was fully liquidated

Common stock subject to possible redemption

The Company accounts for its common stock shares subject to possible redemption in accordance with the guidance in Accounting Standards Codification ("ASC") Topic 480 "Distinguishing Liabilities from Equity." Common stock subject to mandatory redemptions (if any) is classified as a liability instrument and is measured at fair value. Conditionally redeemable common stock (including common stock that feature redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within the Company's control) is classified as temporary equity. At all other times, common stock is classified as stockholders' equity. The Company's common stock features certain redemption rights that are considered to be outside of the Company's control and subject to occurrence of uncertain future events. Accordingly, during the six month period ended June 30, 2020, pursuant to the Charter, all outstanding shares of the Company's common stock that were included in the units sold in the Company's initial public offering (the "Public Shares") were redeemed on April 21, 2020 at a per share redemption price of approximately $10.30 per Public Share (the "Redemption Amount"). On December 31, 2019, common stock subject to possible redemption is presented as temporary equity, outside of the stockholders' equity section of the Company's balance sheets.

Net Income (Loss) Per Share

The Company complies with accounting and disclosure requirements of FASB ASC Topic 260, "Earnings Per Share." Net income per share is computed by dividing net income applicable to common stockholders by the weighted average number of shares of common stock outstanding for the period. The Company has not considered the effect of the warrants and rights sold in the Initial Public Offering and Private Placement to purchase an aggregate of 16,854,750 Public Shares in the calculation of diluted earnings per share, since their inclusion would be anti-dilutive under the treasury stock method. As a result, diluted earnings per share is the same as basic earnings per share for the period.

The Company's consolidated statements of operations includes a presentation of income per share for common stock subject to redemption in a manner similar to the two-class method of income per share. Net income per share, basic and diluted for Public Shares is calculated dividing the net income of $50,005 and $1,203,058, reduced by the investment income on the trust and other income of $356,167 and $1,797,952 respectively, by the weighted average number of Public Shares outstanding during the period. All outstanding shares of the Company's common stock that were included in the units sold in the Company's initial public offering (the "Public Shares") were redeemed. The Founder and Private Placement shares are calculated separately from the Public Shares as these shares do not have any redemption features and do not participate in the income earned on the Trust Account.

Recent Accounting Pronouncements

The Company's management does not believe that any recently issued, but not yet effective, accounting pronouncements, if currently adopted, would have a material effect on the Company's financial statements.