Commitments and Contingencies	9 Months Ended
Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 5 - Commitments and Contingencies *Registration Rights* The holders of Founder Shares, private placement warrants and warrants that may be issued upon conversion of working capital loans, if any (and any underlying securities), are entitled to registration rights pursuant to a registration rights agreement. These holders are entitled to make up to three demands, excluding short form demands, that the Company registers such securities. In addition, the holders have certain “piggy-back” registration rights with respect to registration statements filed subsequent to the completion of the initial business combination. The Company will bear the expenses incurred in connection with the filing of any such registration statements. *Underwriting Agreement* The Company granted the underwriters a 45-day option to purchase up to 2,250,000 additional units to cover any over-allotment, at the initial public offering price less the underwriting discounts and commissions. On December 22, 2020 Company issued 2,250,000 units in connection with the underwriters’ exercise of the over-allotment option in full. The Company paid an underwriting discount of $3,450,000 ($0.20 per unit sold) to the underwriters at the closing of the initial public offering on December 22, 2020, with an additional fee (the “Deferred Discount”) of $6,037,500 ($0.35 per unit sold) payable upon the Company’s completion of an initial business combination. On June 14, 2022, Dune entered into a letter agreement (the “Amendment Letter”) with Cantor Fitzgerald & Co. (“Cantor”) to amend that certain underwriting agreement (the “Underwriting Agreement”), dated December 17, 2020, by and between Dune and Cantor, as representative of the several underwriters named therein (the “Underwriters”), pursuant to which Cantor agreed to waive in full the Deferred Discount. Pursuant to the Amendment Letter, Dune agreed to grant Cantor with a right of first refusal to act as Dune’s capital markets advisor with an advisory fee of $3,800,000, subject to the conditions described in the Amendment Letter.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2022

Commitments and Contingencies Disclosure [Abstract]

Note 5 - Commitments and Contingencies

Registration Rights

The holders of Founder Shares, private placement warrants and warrants that may be issued upon conversion of working capital loans, if any (and any underlying securities), are entitled to registration rights pursuant to a registration rights agreement. These holders are entitled to make up to three demands, excluding short form demands, that the Company registers such securities. In addition, the holders have certain “piggy-back” registration rights with respect to registration statements filed subsequent to the completion of the initial business combination. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

Underwriting Agreement

The Company granted the underwriters a 45-day option to purchase up to 2,250,000 additional units to cover any over-allotment, at the initial public offering price less the underwriting discounts and commissions. On December 22, 2020 Company issued 2,250,000 units in connection with the underwriters’ exercise of the over-allotment option in full. The Company paid an underwriting discount of $3,450,000 ($0.20 per unit sold) to the underwriters at the closing of the initial public offering on December 22, 2020, with an additional fee (the “Deferred Discount”) of $6,037,500 ($0.35 per unit sold) payable upon the Company’s completion of an initial business combination.

On June 14, 2022, Dune entered into a letter agreement (the “Amendment Letter”) with Cantor Fitzgerald & Co. (“Cantor”) to amend that certain underwriting agreement (the “Underwriting Agreement”), dated December 17, 2020, by and between Dune and Cantor, as representative of the several underwriters named therein (the “Underwriters”), pursuant to which Cantor agreed to waive in full the Deferred Discount. Pursuant to the Amendment Letter, Dune agreed to grant Cantor with a right of first refusal to act as Dune’s capital markets advisor with an advisory fee of $3,800,000, subject to the conditions described in the Amendment Letter.